7 Conclusions
The existing swim center does not meet Possible
Post Earthquake Performance. A reinforced building
meeting Collapse Prevention performance level
could see crushing and extensive cracking in the
masonry walls. There could be damage around
openings and at corners. Secondary elements such
as windows and doors could be shattered. There
could be extensive permanent drift and extensive
damage to nonstructural elements. Joinville Swim
Center is nearly 56 years old; seismic demands have
increased and detailing demands have become more
stringent since the original construction. Retrofits
are suggested to meet the Structural Performance
Level (see Appendix A).
A Tier 2 should be performed. The Tier 1 criteria are
conservative. Some of the non-compliant structural
items may be shown to be compliant by a Tier 2
evaluation.
Thank you for the opportunity to be of service.
Please call with any questions.
IDA Structural Engineers, Inc.
lan Dickson
Elliott Goodwin, P.E.
Stephen DeJesse, S.E.
President
52 Bayside/Joinville Park
Tennis Courts
Bayside/Joinville Park
Kehoe Ave Kehoe Ave Kchoe Ave Kchoe Ave
Kelly St
1798 1788 1707
2068 1789
1705 Kelly St
1792 1783 1782
19991
Figure 1. Proximity map of site
San Mateo Joinville Swim Center Analysis and Feasibility Study 53 P •OL
CONCRETE DECK
JOINVILÉE
LEGEND
SWIM CENTER
P00L
E H A N
Figure 2. Site Plan
54 Figure 3. Satellite View
San Mateo Joinville Swim Center Analysis and Feasibility Study 55 200
Address: 2025 KEHOE AVE
APN 035160050
City SAN MATEO
Address 2025 KEHOE AVE
Fault Zone This parcel is NOT WITHIN an
Earthquake Fault Zone.
Liquefaction All or a portion of this parcel
Zone LIES WITHIN a Liquefaction
Zone.
Landslide This parcel is NOT WITHIN a
Zone Landslide Zone.
Zoom to ...
Figure 4. CGS Zoning Map of Seismic Hazards
56 Figure 5. Typical Exposed Glulam Beams Showing Water Damage San Mateo Joinville Swim Center Analysis and Feasibility Study 57 58 5b. Appendix A
(IDA) STRUCTURAL ENGINEERS
San Mateo Joinville Swim Center Analysis and Feasibility Study 59 Structural Cost Estimate Narrative and Conceptual Retrofits Structural Improvements Narrative
This document provides a preliminary narrative for structural improvements to the Joinville Community Center. The intent with these descriptions is to inform a preliminary cost estimate.
Basis of these improvements is :
• An ASCE 41-17 Tier 1 analysis. This analysis is ongoing. The improvements are sorted into buckets based on structural priority. The Basic Performance Objective for Existing Buildings was used as the basis for the analysis. More information will be provided in a Tier 1 report to be issued in March 2024. • Observations made in the field based on the existing condition of the structure that are outside the scope of an ASCE 41 analysis.
Item 1 - Modify existing wall anchorage details at interior walls (Priority 1) • Provide 3x8 blocking each side of existing wall at 4' o.c. over length of wall. Extend blocking to next wood beam. Provide strap on top of roof sheathing with nails into the new blocking. Provide framing anchors each end of new blocking to existing wall or existing beam. 2D.
4-8 Interior wall below
ASIM.
TYPICAL I
•EXHAUST FAN
HT
GoN.
HANGERS New blocking with
TYP. strap each side of wall
2x6
SKYLIGHTİ
SEE 3
2"46" TYP.
60 Item 2 - Provide wall anchorage at exterior walls (Priority 1) • Where beam framing is parallel to existing exterior walls (see figure below with highlighted walls), provide new blocking and hold downs with thru bolt at 4'-0" o.c.
MAL TO 2 PUNKING
PEIZIM OF PANELS &
INTERIOR OF PANEL
(n) hold down AR & GRAVEL
with thru bolt
NOOD INDL
janG
SUGHT
(n) 3x8
blocking at 4'
o.c. with strap
over (e) beam
2-0" 12) 169 MAILS EACH
PLANK TO PLATE
R355932
(n) hold down
8 BLOCK WALL
(n) thru bolt
-(n) framing
San Mateo Joinville Swim Center Analysis and Feasibility Study Item 3 - Cut off and cap ends of all beams around the perimeter (Priority 1) • Existing beam ends show signs of decay and rot. While not a structural concern currently, without mitigation the rot could spread and become an issue. The ends of all exposed beams should be cut off to remove the existing rot and then capped to prevent future water infiltration. A waterproofing consultant should be engaged to develop these details.
cut end of beam off to
be flush with roof
extents. cap and
provide flashing to
prevent water
infiltration to end of
beam
Item 4 - New collector (Priority 2)
. Provide new 3x12 blocking below roof and new strap above roof.
ROOF. SEE SPECIF
T
TYPICAL
FRANG
blocking below
new strap above roof
over breaks in
blocking
byp for length shown
50002 ALices
41'‹вl veer PACKEY MOR BOMA
62 Item 5 - New shear transfer detail (Priority 2)
• Provide new ledgers and hardware at the highlighted wall shown below. (2) 1G% HAILS EACH
2kG' CONT.- SET PLANK TO PLATS
IN GROUT
*5 HORIZ. REIMF
IN BOND BEAM UNIT
- 158
5/в"ф [email protected]"0с.
GLU-LAM BEAM RECESG HENDS
GLa
SBE DETA/L A-8
CLIP
FOR COMNECTION
OF GLU-LAW TO
WALL (N) 3x12 ledger es of
8-8 (e) wall with A35 at 18
TO F.F. o.c. and spax screws
-to (e) sheathing and
(n) post installed
DETAIL 3/4'=1L0 anchor at 2 o.c. into
(e) wall
18:89 126"
- 2KG T4G PLANKING
12"
- RD.
E.P
PLANKING
9 a G'oc.
OF PANELS 4
a 12" AT
OF PANEL
BEAMS COMB'C"-
INDUST APPEAR 8
59:4"
R.P
ISt
SKYLIGHT SKYLIGHT
San Mateo Joinville Swim Center Analysis and Feasibility Study 63 Item 6 - Brace all nonstructural components in pool mechanical room (Priority 2) • Pool equipment appears to be unbraced, unanchored or have inadequate anchorage. New anchorages should be installed. Assume (4) new anchors for each ground supported unit consisting of L4x4x1/4 bolted to existing units and post installed anchors into existing slab on grade. In addition, provide strapping of all tanks to walls where possible. Similar bracing and anchorage into either the existing slab on grade or into a new concrete pad is expected for any new equipment that is added or to replace existing.
Item 7 - New shear wall (Priority 3)
• Provide new concrete shear walls (shown in sold red below) in the locations indicated. Assume new post installed rebar into existing thickened edge at foundation and new nailing from roof diaphragm into new 3x sill plate on top of the new wall. Provide new collectors at dashed line below roof with new straps above roof. Cut down top of existing cmu wall and install new transom window below collector. 64 5C. Appendix B
(IDA) STRUCTURAL ENGINEERS
San Mateo Joinville Swim Center Analysis and Feasibility Study 65 Building Checklists and Quick Check Calculations
Table 17-2. Collapse Prevention Basic Configuration Checklist Tier 2 Commentary
Status Evaluation Statement Reference Reference
Low Seismicity
Building System-General
ONC N/A U LOAD PATH: The structure containa a complete, wall-defined load path. 5.4.1л A21.1 including structural elements and connections, that serves to transfer the inerlial forces associated with the mass of all elements of the building to the foundation.
C NC (N U ADJACENT BUILDINGS: The clear distance between the building being 5.4.12 A2.1.2 evalualed and any adjacent building is grealer than 0.25%% of the height of thi horter building in low seismicity, 0.5% in modorate saismicity, and 1.5% ir high seismicity.
C NC U MEZZANINES: Interior mezzenine levels are braced independenly from the 54.13 A213 main structure or are anchored to the seismic-force-resisting elements of the main structure.
Building System Building Configuration
C NCIN/AU WEAK STORY: The sum of the shear strengths of the seismic-force-resisting 5.4.2.1 A222 system in any slory in each direction is not less than 80% of the strength in the adjacent story above
C NCON U SOFT STORY: The stiffness of the seismic-force-resisting system in any story is 5.4.2.2 A 2.2.3 not less han 70% of the seismic-force-resisting syslem stiffness in an adjacent story above or less than 80% of the average seismic force-resisting system stiffness of the three stories above.
ONC N/A U VERTICAL IRREGULARITIES: All vertical elements in the seismic-force- 5423 A224 resisting system are continuous to the foundation.
C NC N/A U GEOMETRY: There are no changes in the net horizontal dimension of the 5.424 A 2.2.5 seismic-force-resisting system of more than 30% in a story relative to adjacent stories, excluding one-story penthouses and mezzanines
C NCQ U MASS: There is no change in effective mass of more than 50% from one story to 5.4.2.5 A 22.6 the next. Light roofs, penthouses, and mezzanines need not be considered CINON/A U TORSION: The estimated distance between the story center of mass and the 5426 A 2.2.7 story center of rigidity is less than 20% of the building with in either plan dimension.
Moderate Seismicity (Complete the Following Items in Addition to the Items for Low Seismicity) Geologic Site Hazards
C NON/A U LIQUEFACTION: Liquefaction-susceptible, saturated, loose granular soils that 5.4.3.1 A.6.1.1 could jeopardize the building's seismic performance do not exist in the foundation soils at depths within 50 ft (15.2 m) under the building.
ONC N/A U SLOPE FAILURE: The building site is located away from potential earthquake- 5.4.3.1 A.6.1.2 induced slope failures or rockfalls so that it is unaffected by such failures or is capable of accommodating any predicted movements without failure. ©NC N/A U SURFACE FAULT RUPTURE: Surface fault rupture and surface displacement at 5.4.3.1 A.6.1.3 the building site are not anticipated.
High Seismicity (Complete the Following Items in Addition to the Items for Moderate Seismicity) Foundation Configuration
C NO N/A U OVERTURNING: The ratio of the least horizontal dimension of the seismic-force- 5.4.3.3 A.6.2.1 resisting system at the foundation level to the building height (base/height) is greater than 0.6Sg.
C NC U TIES BETWEEN FOUNDATION ELEMENTS: The foundation has ties adequate 5.4.3.4 A.6.2.2 to resist seismic forces where footings, piles, and piers are not restrained by beams, slabs, or soils classified as Site Class A, B, or C.
Note: C = Compliant, NC = Noncompliant, N/A = Not Applicable, and U = Unknown. 66 Table 17-34. Collapse Prevention Structural Checklist for Building Types RM1 and RM2 Tier 2 Commentary
Status Evaluation Stalement Reference Reference
Low and Moderate Seismicity
Seismic-Force-Resisting System
ONC N/A U REDUNDANCY. The number of lines of shear walls in each principal direction is 55.11 A.321.1 greater than of squal to 2
ONC N/A U SHEAR STRESS CHECK: The shear stress in the reinforced masonry shear 5.5.3.1.1 A.3.2.4.1 walls, calculeted using the Quick Check procedure of Section 4.4.3.3, is less than 70 lbin.º (0.48 MPa).
NA U REINFORCING STEEL: The total verlical and horizontal reinforcing steal ratio in 5.5.3.1.3 A.3.24.2 reinforced masonry wais is greater than D.002 of the wall with the minimum of
0.0007 in either of the two directions; the spacing of reinforcing steel is less than 48 in. (1220 mm), and all vertical bars extend to the top of the walls.
Stiff Diaphragms
TOPPING SLAB: Precast concrete diaphragm elements are interconnected by a 5.6.4 A.4.5.1 continuous reinforced concrete topping slab.
Connections
C NON/A U WALL ANCHORAGE: Exterior concrete or masony walla that are dependent on 5.71.1 A.5.1. the daphragm for lateral support are anchored for out-of-plane forces at each diaphragm level with steel anchors, reinforcing dowels, or straps that are developed into the diaphragm. Connections have strength to resist the connection force calculated in the Quick Check procedure of Section 4.4.3.7 WOOD LEDGERS: The connection betwicen the wall pancis and the diaphragm 5.7.1.3 A.5.1.2 does not induce cross-grain bending or tension in the wood ledgers.
ONC N/A U TRANSFER TO SHEAR WALLS: Diaphragms are connected for transfer of 5.7.2 A 5.2.1 seismic forces to the shear walls.
C NC OU TOPPING SLAB TO WALLS OR FRAMES: Reinforced concrete topping slabs 5.7.2 A.5.2.3 that interconnect the precast concrete diephragm elements are doweled for ONC N/A U FOUNDATION DOWELS: Wall reinforcement is doweled into the foundation. 5.7.3.4 A.5.3.5 ONC N/A U GIRDER-COLUMN CONNECTION: There is a positive connection using plates, 5.7.4.1 A.5.4.1 connection hardware, or straps between the girder and the column support.
High Seismicity (Complete the Following Items in Addition to the Items for Low and Moderate Seismicity) Stiff Diaphragms
C NCIN U OPENINGS AT SHEAR WALLS: Diaphragm openings immediately adjacent to 5.6.1.3 A.4.1.4 the shear walls are less than 25% of the wall length.
OPENINGS AT EXTERIOR MASONRY SHEAR WALLS: Diaphragm openings 5.6.1.3 A.4.1.6 immediately adjacent to exterior masorry shear walls are not greater than B ft (2.4 m) long.
Flexible Diaphragms
C (NON/A U CROSS TIES: There are continuous cross ties between diaphragm chords. 5.6.1.2 A.4.1.2 C NCI WAU OPENINGS AT SHEAR WALLS: Diaphragm openings immediately adjacent to 5.6.1.3 A.4.1.4 the shear walls are less than 25% of the wall length.
C NC OPENINGS AT EXTERIOR MASONRY SHEAR WALLS: Diaphragm openings 5.6.1.3 A.4.1.6 immediately adjacent to exterior masonry shear walls are not greater than 8 ft (2.4 m) long.
C NCO TASU STRAIGHT SHEATHING: All straight-sheathed diaphragms have aspect ratios 5.6.2 A.4.2.1 less than 2-to-1 in the direction being considered
ONC N/A U SPANS: All wood diaphragms with spans greater than 24 ft (7.3 m) consist of 5.6.2 A.4.2.2 wood structural panels or diagonal sheathing.
ONC N/A U DIAGONALLY SHEATHED AND UNBLOCKED DIAPHRAGMS: All diagonally 5.6.2 A.4.2.3 sheathed or unblocked wood structural panel diaphragms have horizontal spans less than 40 ft (12.2 m) and aspect ratios less than or equal to 4-t0-1.
ONC N/A U OTHER DIAPHRAGMS: Diaphragms do not consist of a system other than 5.6.5 A.4.7.1 wood, metal deck, concrete, or horizontal bracing.
Connections
C NC N/AO STIFFNESS OF WALL ANCHORS: Anchors of concrete or masonry walls to 5.7.1.2 A.5.1.4 vood structural elements are installed taut and are stiff enough to limit th elative movement between the wall and the diaphragm to no greater than 1/ in. (3 mm) before engagement of the anchors.
Note: C = Compliant, NC = Noncompliant, N/A = Not Applicable, and U = Unknown.
San Mateo Joinville Swim Center Analysis and Feasibility Study 67 Date: 02/27/2024 Page:
By: ITD Job #: 23076
DA Project:
Joinville Swim Center
Joinville Swim Center
ASCE 41-17 Tier 1
Evalute the BPOE with the BSE-2E at S-5 Structural Performance Level (Collapse Prevention) and N-D Non structural performance Level (Hazards Reduced)
Compliance with BSE-2E implies compliance with BSE-1E 3-C Performance Objective (Life Safety Structural Non structural)
Seismic Parameters for Performance Objectives:__
Per Seismic Design Maps and ASCE 41-17:
S,:= :=1.595
S, := 0.634
Sxs:= 1.914
Syy:= 1.077
Building type RM1
P: 12023 JOBS\23076 Joinville and MLK Community Center Assessments\20-29 Engineering\21 Calculations\21.03 Tier 1 Calcs\Joinville - Tier 1 cals.mcdx Created with PTC Mathcad Express. See www.mathcad.com for more information. 68 2/20/24, 10:01 AM U.S. Seismic Design Maps
USGS web services were down for some period of time and as a result this tool wasn't operational, resulting in timeout error.
USGS web services are now operationa so this too should work as expected OSHPD
Joinville
Latitude, Longitude: 37.565819, -122.293761
Royal Ave Bayside/
Joinville Park Clipper St
Bayside Performing Ge
Arts Center
Kehoe Ave Late
Kelly St
Google Map data ©2024 Google
Date 2/20/2024, 10:01:36 AM
Design Code Reference Document ASCE41-17
Custom Probability
Site Class D - Default (See Section 11.4.3)
Type Description Value
Hazard Level BSE-2N
Ss spectral response (0.2 s) 1.66
s, spectral response (1.0 s)
Sxs site-modified spectral response (0.2 s)
Sx1 site-modified spectral response (1,0 s)
Fa site amplification factor (0,2 s)
site amplification factor (1.0 s)
ssuh max direction uniform hazard (0.2 s)
crs coefficient of risk (0.2 s)
ssrt risk-targeted hazard (0.2 s)
ssd deterministic hazard (0.2 s)
stuh max direction uniform hazard (1.0 s)
crt coefficient of risk (1.0 s)
s1rt risk-targeted hazard (1.0 s)
sid deterministic hazard (1.0 s)
Type Description
Hazard Level 1N
Sxs site-modified spectral response (0.2 s)
Sx1 site-modied spectral response (1.0 si
https://www.seismicmaps.org 1/2
San Mateo Joinville Swim Center Analysis and Feasibility Study 69 2/20/24, 10:01 AM U.S. Seismic Design Maps
Type Description Value
Hazard Level BSE-2E
Ss spectral response (0,2 s) 1.595
S, spectral response (1.0 s) 0.634
Sxs site-modified spectral response (0.2 s) 1.914
Sx1 site-modified spectral response (1.0 s) 1.077
site amplification factor (0.2 s) 1.2
site amplification factor (1.0 s) 1.7
Type Description Value
Hazard Level BSE-1E
Ss spectral response (02 $) 0.78
spectral response (1.0 s) 0,286
Sxs site-modified spectral response (02 s) 0.936
Sx1 site modified spectral response (1,0 s) 0,58
Fa site amplification factor (0.2 s) 1.2
Fr site amplification factor (1.0 s) 2.029
Type Description value
Hazard Level TL Data
T-Sub-L Long-period transition period in seconds 12
DISCLAIMER
While the information presented on this website is believed to be correct, SEAOC/OSHPD and its sponsors and contributors assume no responsibility or liability for its accuracy. The material presented in this web application should not be used or relied upon for any specific application without competent examination and verification of its accuracy, suitability and applicability by engineers or other licensed professionals. SEAOC / OSHPD do not intend that the use of this information replace the sound judgment of such competent professionals, having experience and knowledge in the field of practice, nor to substitute for the standard of care required of such professionals in interpreting and applying the results of the seismic data provided by this website. Users of the information from this website assume all liability arising from such use. Use of the output of this website does not imply approval by the governing building code bodies responsible for building code approval and interpretation for the building site described by latitude/longitude location in the search results of this website. https://www.seismicmaps.org 212
70 Date: 02/27/2024 Page:
By: ITD Job #: 23076
DA Project: Joinville Swim Center
Determine T
Coefficient to determine building period C,:= :=0.020
Height in feet above the base to the roof level hp:= 10 ft B:= 0.75
Fundamental period of vibration of the building,
calculated in accordance with Section 4.5.2.4
Per 7.2.3.6, beta (damping) is the default 5% B:= 0.05
Per 2.4.1.7.1, horizontal response spectrum B,:= (5.6 - In (100-B)) = 1.002 For periods between TO and long period (i.e
along the flat line), Spectral Response
Sxs)
Acceleration uses this ean: S.:=
(B) =1.91
Ts:= Sx =0.56
Sxs
SXI
To:=0.2.. - =0.11
Sxs
TL:=8
Periods shorter than TO not allowed to be
used, unless dynamic analysis
P: \2023 JOBS\23076 Joinville and MLK Community Center Assessments\20-29 Engineering\21 Calculations\21.03 Tier 1 Calcs\Joinville - Tier 1 cals.mcdx Created with PTC Mathcad Express. See www.mathcad.com for more information.
San Mateo Joinville Swim Center Analysis and Feasibility Study 71 Date: 02/27/2024 Page:
By: ITD Job #: 23076
IDA Project: Joinville Swim Center
O 0.4• Sxs
Sxs
B, 0.77
Sxs 0.11 1.91
ResponseSpectraBSE2N :=
Ts 0.56 1.91
= 1.07
Sx1
1 Leave off tail to TL
Period:=T max (ResponseSpectrase (3) = 0.11 1.91
2-
1.8 1.6-
1.4-
1.2-
1-
ResponseSpectra BSE2N2)
0.8-
0.6-
Period2)
0.4-
0.2-
-01 0.2 0.3 0.4 0.5 0.6 07 08 0o | "
0.1 ResponseSpectra BSEaN'")
....
Period")
72 Date: 02/27/2024 Page:
By: ITD Job #: 23076
DA Project: Joinville Swim Center
Torsion:
Estimated distance btwn story center of mass and story center of rigidity not less than 20% of the building width in either direction
Bldg Width := 27 ft
Building with and length taken as the
BldgLength := 59.5 ft shorter dimensions of the "L" shaped bldg AllowableDim := min (0.20 - BldgWidth, 0.20 - BldgLength) = 5.4 ft Only some masonry walls appear to extend up to roof diaphragm and assumed to act as shear walls. Based on layout and lengths of these walls and the irregular "L" shape of the building, the distance between center of mass and center of rigidity is expected as greater than 20% of the building width by inspection.
Therefore Torsion Deficiency Exists.
202308306 einile and MiK Community Center Assessments\20-29 Enaineerin 21 Calculations 21 03 Tier 1 Cales\ninville - Tier 1 cales merx San Mateo Joinville Swim Center Analysis and Feasibility Study 73 Date: 02/27/2024 Page:
By: ITD Job #: 23076
IDA)
Project: Joinville Swim Center
Overturning:
Minimum horizontal dimension of CMU shear walls
length:= 10 ft Exact lengths of shear walls not clear, but several short masonry shear walls appear to exist
Overturning:= if length - > 0.6 • Sa, "Compliant", "Non Compliant" h,,.
Overturning = "Non Compliant"
Therefore overturning deficiency exists.
Reinforcing Steel:
0.2 in
VertRatio:=- - = 0.0016 #4 @ 16" OC vert wall bars
16 in • 8 in
0.31 in?
HorizRatio:= - - = 0.0008 #5 @ 48" OC horiz wall bars
48 in • 8 in
TotalReinfRatio := if (VertRatio + HorizRatio > 0.002, "Compliant", "Non Compliant") TotalReinfRatio = "Compliant"
Minimum of 0.007 in either direction. Horiz ratio is 0.0008, so therefore OK.
Reinforcing steel is 48" oc for horiz bars. Requires less than 48" OC spacing.
Therefore reinforcing steel deficiency exists.
74 Date: 02/27/2024 Page:
By: ITD Job #: 23076
DA
Project: Joinville Swim Center
Shear Stress Check of Masonry Shear Walls:
Determine V, the pseudo lateral force from Equation 4-1. V is a function of • C, modification factor to relate expected maximum inelastic displacements to displacements calculated for linear elastic response; shall be taken from table 4-7
• Sa, the response spectral acceleration at the fundamentla period of the building in the diretion under consideration. Sa shall be calculated in accordance with Section 4.4.2.3
• W, the total dead load
From Weigh-Up:
Wroof:= 20 psf Wwalls:= 64 psf
A roof rib = 4787 fi Lwalls = 378 ft h,= 10 ft
Wroof:= Wroof• Aroof trib = 95.74 kip
Floors := 1 W:= W roor+ W walls trib roof= 216.7 kip
w:=[w]
Floors
Total seismic weight of W:= ≥ w=216.7 kip
structure
Table 4-7. Modification Factor, C
Modification Factor for RM1 Number of Stories
Building Type® 1 2 3 24
C:= 1.0 Wood and cold-formed stee 1.3 1.1 1.0 1.0
shear wall (W1, W1a, Wa
CFS1)
Moment frame (S1, S3, C1.
PC2a)
Shear wall (S4, S5, C2, C3. 1.4 1.2 1.1 1.0
PC1a, PC2, RM2, URMa)
Braced frame (S2)
Cold-formed steel strap-brace
wall (CFS2)
Unreinforced masonry (URM) 1.0 1.0 1.0 1.0
Flexible diaphragms (Sta
s2a, S5a, C2a, C3a, PC1,
RM1)
a Defined in Table 3-1.
D-2022 08122076 lainville and MIk Community Contar Accacemental 20.20 Enainarinal21 Calciationd 21 02 Tiar 1 Calcellainvillo. Tiar 1 calce mccl San Mateo Joinville Swim Center Analysis and Feasibility Study 75 sneet
Job No. 23076
STRUCTURAL ENGINEERS By ITD
Date 2024/Feb/27
Joinville Swim Center - Tier 1 Analysis
DESIGN LOADS
Roof
Decking Joists Beams Seismic
4-ply tar & Gravel Roofing 4.7 4.7 4.7 4.7
3/8" plywood 1.2 1.2 1.2 1.2
2x6 T&G Planking 2.0 2.0 2.0 2.0
4.25"x14.625" Glulam @ 8'-0" OC 0.0 0.0 1.9 1.9
Ceiling 0.0 3.0 3.0 3.0
Partitions 0.0 0.0 0.0 5.0
Mech/Elec/Miscellaneous 1.8 2.0 2.0 2.5
Dead Load 10 13 15 20
Live Load 20 20 20
Total Load 30 33 35 20
CMU Walls
8" CMU Wall, grouted 16" oc 64.0
Dead Load 64.0
Wall Weights and Areas
(Excerpted from Design of Reinforced Masonry Structures, published by CMACNI Average Weight of Completed Wall' (psf) and Equivalent Solid Thickness (in) Hollow Concrete Block
Equivalent Solid Thickness
Lightweight Mediumweight Normalweight Inches
103 pcf 115 pcf 135 pcf
Wall Thickness 6" 8 10" 12° 6" 8" 10" 12" 10" 12" 6" 10° 12" Solid grouted wall 52 75 93 118 58 78 98 124 63 84 104 133 5.6 7.5 9.6 11.6 16" o.c. 41/60 69 88 47 63 80 94 52 66 86 103 4.5 5.8 7.2 8.5 vertical 24" O.C. 37 55 61 79 43 58 72 85 48 61 78| 94 4.1 5.2 63 7.5 cores 32" o.c. 36 52 57 74 42 55 68 80 47 58 74 89 4.0 4.9 5.9 7.0 grouted at 40" o.c. 35 50 55 71 41 53 66 77 46 56 72 86 3.8 4.7 5.7 6.7 48" o.c. 34 49 53 69 40 45 64 75 45 55 70 83 3.7 4.6 5.5 6.5 1 The above table gives the average weights of completed walls of various thickness in pounds per square foot of wall face ares.
An average amount has been added into these values to include the weight of bond beams and reinforcing steel. Weight of grout is assumed at 140 pcf
*Equivalent solid thiness means the calculated thickness of the wall if there were not hollow cores, and is obtained by dividing the volume of solid material in the wall by the face area of the wall. This Equivalent Solid Thickness (EST) is for the determination of area for structural design only, e.g. fs = P/(EST)b. It is NOT to be used to obtain fire ratings. Fire rating thickness is based either on equivalent solid thickness of ungrouted units only or solid grouted walls. 76 Date: 02/27/2024 Page:
By: ITD Job#: 23076
ID Project: Joinville Swim Center
Seismic force
Psuedo seismic force per 4.4.2.1 Eq. 4-1 V:= C•S, •W=413.79 kip factor per 4.4.2.2 k:= if (T>2.5,2, if(T≤0.5, 1, 0.5• T+0.75)) = 1 Story force Fx:=V=413.79 kip
Shear Stress Check:
System modification factor; shall be Table 4-8. M. Factors for Shear Walls taken from Table 4-8 Level of Performance
Wall Type CP* LS® 10°
M, := 4.5
Reinforced concrete, precast 4.5 3.0 1,5
concrete, wood, reinforced
masonry, and cold-formed
steel
Unreinforced masonry 1.75 1.25 1.0
• CP = Collapse Prevention, LS = Life Safety, IO = Immediate Occupancy.
Determine summation of the horizontal cross-sectional area of all shear walls in the direction of loading. Openings shall be taken into consideration where computing.
For masonry walls, the net area shall be used.
Total area of masonry shear walls AWNS:= 127 ft •8 in =84.67 fi? in north south direction
Total area of masonry shear walls ANEW:= 100 ft- 8 in = 66.67 fi in east west direction
V
Shear stress in shear walls VNS:= - - - = 7.54 psi
in north south direction AwNS
Shear stress in shear walls V
VEW:=- -=9.58 psi
in east west direction
ShearStressCheck := if (max (Vvs, YEw) > 70 psi, "Non Compliant", "Compliant") = "Compliant" Therefore, shear stress OK
P: \2023 JOBS\23076 Joinville and MLK Community Center Assessments\20-29 Engineering\21 Calculations\21.03 Tier 1 Calcs\Joinville - Tier 1 calcs.mcdx Created with PTC Mathcad Express. See www.mathcad.com for more information.
San Mateo Joinville Swim Center Analysis and Feasibility Study 77 IMAGE A: IMAGE D:
IMAGE B:
IMAGE C:
78 IMAGE E:
CONCRETE DECK
- 1987 ADDITION
JOINVILLE
LEGEND
SWIM CEN
P
KEHOE AVENUE
San Mateo Joinville Swim Center Analysis and Feasibility Study 79 N
C
A
S
WALLS DO NOT GO
FULL HEIGHT, TYP
WHERE SHOWN IN
GREEN, SEE IMAGE B
BUILT CONDITION
VARIES FROM AS TYR. ALL
& CORNERS
SHOWN HERE. SEE
IMAGE A I2D.
) SIM
TYPICAL I
~8'-8" (EXHAUST FAN G
TYP. SKYLIGHT-
GAL.
FRAMING
HANGERS
26-0" TYP.
- ~8'-8"
SKYLIGHT
~8'-8" -
шун
414"× 14%" GOW-LAM.
BEAMS COMB. 'E
INDUSTRIAL APPEAIZ.
140 80" 8-c 8'o"
2:0".
ROOF AND
SCALE:
80 2'6" 18-8" 12-6"
2XG T$G PLANKING
EW ROOF EXPANDED
ITH NEW GLULAMS AND (U 00)
ONCRETE COLUMNS N
DDED IN 1987.
EE IMAGE D & IMAGE E
RD.
3/2" STRUCT I PLYVOND .-R.D.
HAIL TO 2" PLANKING WALLS IN GREEN ONLY
PARTIAL HEIGHT WHERE
N/89 NAILa @G"OC.
LOUVERS OCCUR
• PERIM OF PANELS $ FULL HEIGHT IN YELLOW.
89 NALS@I2" AT SEE IMAGE C
TUTER OF PATEL.
4-PLY TAR & GRAVEL
ROOF. SEE SPECIF
BEAMS COMB"C" =
ADUST APPEAR. O
POSTS
s'o" 59-4'
=
'R.P.
SKYLIGHT -SKYLIGHT
26-0"
SKYLE
SEE 13
2'X6" TEG PLAMKING
RO TYP. ROOF
DRAIM SEE E
STAGGErZ SPLICES
444 × 5'12"VOOD POCKET FOR BEAM NOTE: 2%6" TEG ROOF
POSTS- SEE SEE DET:'F" FOR PLAHKING SHALL SPAN
DET. ELE FOR CONNECTION
CONN. A MINIMUM OF (2) SPAMS.
8-0 * to so p so 8'0"
96-0" 2-6"
OOF FRAMING PLAN
San Mateo Joinville Swim Center Analysis and Feasibility Study 81 56'-1/4"
35'.z"
821-4
1-0"
NOTE:
BATH HOUSE AND FILTER WING
MUST BE POURED MONOLITHICALLY.
NO EXPANSIOM OR TOOLED CONST.
JOINTS ALLONED.
68"
SIM.
SLopE
4'-0" 4-4
-21'-3".
SIGHT SCREE
SLEEVES DET
...
33-8"
82 г0.0"
8. 14'8" 12'8,20.
PLATFORM SCALES
RECESS PIT FOR
PWSH SCALES
E'G"
SUMP PLMP
PIT
PUMP PIT
D 20-0" = 5t
22-0" 114 8 33-0"
в'-o" FD.
BACKWASH
SUMP- SEE
MECH. PLAN
FORe LOCATION
-4" 59-8'
NOOD POST
"THICK CONC. FLOOR CENTER OF MASS
LAB THRUOUT- REINFI
JITH H4E16"OC. EACH
NAY, EACH FACE.
6-B" LI= 377-7 3/4"
A = 4,787.4 sf
FF. ELEV= 101.5'
26-8"
@ FD
• GIANT SCREE
SLEEVES
TYP. BENCH
SLAVES
SLAB -
NOTE:
oR DIMENSIONS NO
HOWN SEE FLOOR PLAI
SHEET #3
10-0 10-0 33-g"
97-4"
San Mateo Joinville Swim Center Analysis and Feasibility Study 83
LENGTHS OF WALLS IN NORTH SOUTH AND EAST WEST DIREC
EAST-WEST TOTAL LENGTH OF ASSUMED SHEAR WALL = 100FT
NORTH-SOUTH TOTAL LENGTH OF ASSUMED SHEAR WALL = 127FT
35'2"
8- 22-0
1-0" B-0"
NOTE:
BATH HOUSE AND FILTER WING
MUST BE POURED MONOLITHICALLY.
NO EXPANSION OR TOOLED CONST.
JOINTS ALLOWED. 45'-0"→
SIM. 4.8 44'x 5½
+→ POST
8' THICK COME.
14'-10". SLAB THRIJOUT
WAY, EACH FACE
SLopE SLOPE
-47.0 6'-B"
FF. ELEVE
27-4" 9'-0"-
•4'-5"→
44'-9"→
SIGHT SCREET
SLEEVES
8'-2"-
+4'-9"—
45-3'
33-8" 10-0" 10-0"
- 8'_9"— 97-4
84 TIONS 20.0"
4'g"
15'-2"-
PLATFORM SCALES
FOR
PWSH SCALES
124-
8 SUMP PLMP
17'-2°
PUMP PIT
15-8"
8-0
33-0"
1-0"
34 CHUASH
UMP. SEE
MECH. PLAN
POTE-LOCATION
11'-0"-
FLOOR
REINF
C. EACH 3-4 - 20'-0"-
→
SLOPE
4-4" 4-8
01.5'
44'-9"→ 26'4"- 26-8"
eFO
SLEEVER
.-
SLAB - SEE C
NOTE:
FOR DIMENSIONS NOT
SHOWN SEE FLOOR PLANT
SHEET #3
10-0" 33-8"
- 8'-9"
SHEET
AUGUST E. WAEGEMANN BAYSIDE SWIMMING POOL
CIVIL ENGINEER CITY OF SAN MATEO RECREATION DEPT. 4
20 SECOND STREET SAN FRANCISCO, CALIFORNIA 94105 SU 1-8535 KEHOE AVE AT ROBERTA DR. SAI MATEO, CALIF •CALE
FOUNDATION PLAN - BATH HOUSE OF3 7 SHEET
4-8-68
San Mateo Joinville Swim Center Analysis and Feasibility Study 85 86 O. Mechanical Assessment
Alter
Engineers
San Mateo Joinville Swim Center Analysis and Feasibility Study
Introduction
The existing building consists of an entry lobby
flanked by locker rooms. As you enter the lobby,
there is a reception desk, behind which is
administration space with open office space and one
small, enclosed office. There is a meeting room which
can only be entered from the pool deck.
Existing Conditions
Most of the equipment is beyond it's useful life and all of the equipment should be replaced.
The main office space has a newer ceiling hung gas-
fired unit heater. The gas-fired unit heater that was
replaced, was moved into the meeting room off the
pool deck.
The small, enclosed office has a wall mounted
packaged terminal heat pump (PTHP) unit mounted
low under the desk. Meeting room unit heater
The locker rooms have exhaust vents through the
roof with operable windows for natural ventilation
and gas-fired unit heaters. The unit heaters in the
locker rooms have started to rust and the damper
blades are corroded.
The meeting room off the pool deck has a gas-fired
unit heater (as mentioned above). There is also a
small kitchenette with an electric range and oven as
well as a residential range hood.
Existing Equipment Wall mounted PTHP unit
Space Recommendations
Locker rooms Propeller fan inline with roof, make-up through operable windows, gas-fired unit heater Lobby/Open office Natural ventilation, gas-fired unit heater, PTHP unit Meeting room Range hood exhaust, gas-fired unit heater, natural ventilation Office unit heater Locker room gas unit heater and natural ventilation San Mateo Joinville Swim Center Analysis and Feasibility Study 89 Recommendations
All of the equipment installed is beyond it's useful life, The meeting room off the pool deck could have the except for the newly installed gas-fired unit heater. same system type as the adjacent spaces: a filtered All of the existing mechanical equipment should be supply fan providing mechanical ventilation and removed and replaced. The gas-fired unit heaters are a split system providing space conditioning. The not appropriate for the spaces they serve, including ventilation can be relieved passively through a roof the new one. vent at the existing roof location in that space.
The locker room exhaust fans are propeller fans All exterior equipment shall be provided with the inline with the roof, exhausting out with a weather manufacturer's corrosion resistant coating for salty cap. These could be replaced with new upblast air, to be applied at the factory. The pool equipment exhaust fans with fully insulated and weather proofed and chemical rooms shall be exhausted per the latest penetrations. The exhaust fan make-up for the locker codes and standards. All utility and equipment type rooms can be provided by cascading the mechanical spaces shall be exhausted. ventilation air required to be provided to the open
office and lobby spaces.
The open office space can be provided with a supply
fan sized to provide the code required ventilation
for the space type but will likely be increased to
provide the locker room make-up air. This would
be untempered but filtered air. If the building is
occupied in the winter, a small electric resistance
duct coil could be added to temper the mechanical
ventilation in the winter if needed. The space
conditioning for the open office space and private
office space could be split systems. Each space could
have a high wall split system with one shared outdoor
heat pump either ground mounted and caged or on Locker room roof mounted exhaust fan the roof.
Split system outdoor unit with optional indoor units and controls 90 Preliminary Equipment List
Space Recommendations
Locker rooms Each locker room: Roof mounted upblast exhaust fan, ceiling hung electric heater Lobby/Open office In-line supply fan with 2" MERV 13 filter box, duct up through existing unit heater flue penetration; roof mounted 2 ton heat pump with two 1 ton high wall mounted fan coils; wall mounted thermostats
Meeting room In-line supply fan with 2" MERV 13 filter box, duct up through existing unit heater flue penetration; new relief vent in roof for relief; roof mounted 2 ton heat pump with one 2 ton high wall mounted fan coil; wall mounted thermostat San Mateo Joinville Swim Center Analysis and Feasibility Study 91 92 7. Plumbing Assessment
Alter
Engineers
San Mateo Joinville Swim Center Analysis and Feasibility Study 93 94 Existing Conditions
Most of the plumbing piping appears to be original
copper and cast iron from 1968. Water heaters are
located within the pool equipment room. The system
is comprised of a large storage tank (365 gallon)
paired with a gas fired water heater and circulator.
The water heater was manufactured in 2004 (per the
nameplate). The existing storage tank was replaced
oecause it was leaking but the water heater remains
and operates well enough (based on site discussions
with the maintenance staff).
The hot water from the tank is routed to a tempering
valve to set a single Tempered temperature
distributed below slab to all showers parallel to the
cold water distribution piping. All water distribution
(cold and tempered occurs below slab only rising up
within tiled walls to serve the showers. There is no
circulator to reduce the wait time for hot water and
this seems to be the largest pain point for the users.
Copper piping in mechanical room is green in places
(due to the pool chemicals in the air) but appears
to be in good condition. No distinct history of
plumbing leaks or piping failures has been reported.
Below grade sanitary piping has no history of severe
blockages besides the occasional hair ball from Gas Fired Water Heater and Tank the showers (based on site discussions with the
maintenance staff).
Water Closet (Floor Mount, Flushvalve) Gang Shower Thermostatic Mixing Valve (green copper) San Mateo Joinville Swim Center Analysis and Feasibility Study 95 All fixtures appear to be original. Showers are Recommendations operated by a single valve for each head (no
compliant pressure balance valve).
There is a kitchenette in the building but they said P1: Hot Watern Return line to reduce wait time it is rarely used. A sink would likely make the space for hot water. more appealing for group events. • To solve the main pain point of wait time for hot water, install a circ pump with a new 1/2"
copper Hot Water Return (approximately 100
ft horizontally) to reduce the wait time from
minutes to seconds. This both improves the user
experience and reduces water usage. This would
require routing across the open ceiling of the
building (below beams or through CMU walls)
or across the roof. Roof routing would require
outdoor rated jacketed insulation.
• It is not likely that the existing mixing valve was
listed to the same safety standard as a modern
thermostatic mixing valve so to provide an
improved level of temperature control and scald
protection, provide new gang shower master
thermostatic mixing valve to blend the hot output
Stainless Steel Single Temperature Showers from the tank with cold water AND the new return line to provide stable output temperature.
P2: Replace Fixtures to be improved and
compliant.
• This would improve user experience (sensor flush
at urinals and water closets)
• Shower valves replaced with modern compliant
pressure balance valves. (This may trigger
required modifications of floor drains)
Refer to attached floor plans for fixture counts.
P3: Remove existing gas fired water heater and
replace it with an electric heat pump
The large tank that was recently replaced
could be repurposed with multiple SANCO2 air
Existing Kitchenette source heat pumps making use of all the existing connections but using electricity instead of gas.
The feasibility of this first would require City
input on how much showering they anticipate
to determine peak usage. This estimate should
consider the installed condition when users
actually enjoy the hot shower amenities.
P4: Camera the sanitary lines
• While not an immediate pain point, the existing
sanitary lines are over 50 years old and likely
include sags or cracks or root intrusion that can
be managed if it can be identified and remedied.
Ceilings photo Indicating limited easy pathways for piping 96 Preliminary Equipment List
Water Heating
• (6) SANCO2 Water Heaters (This represents about
25% of the capacity of the existing gas water
heater.)
• Installed somewhere outside (luckily these
blow cold air during the summer and they are
relatively quiet at 40dB)
• WaterDrop provides pre-plumbed and wired
heat pumps on a rack for ease of installation.
• Central Mixing Valve and Circ Pump- Leonard
Megatron - 2" Tempered water outlet
• Pre-mounted on Galvanized Strut
• Expansion Tank
WaterDrop Droplets
18 H
Heat Pump Package on Rack (SANCO2 units) Central Mixing Valve and Pump Pre-Plumbed San Mateo Joinville Swim Center Analysis and Feasibility Study 97 98 8. Electrical Assessment
«RIJA
San Mateo Joinville Swim Center Analysis and Feasibility Study 99 100
Electrical Report
1 Executive Summary 2 Electrical System
This report describes recommended electrical 2.1 Utility Service improvements, based on building modernization,
improvements, and electrification to the pool Upgrade the existing electrical service from 250Amp process equipment and mechanical systems. to 600Amp (estimated), 208/120V, 3phase. Includes new pad mount transformer and main switchboard.
1.1 Project Goals Assume main switchboard will be outdoor rated.
Key electrical objectives for the proposed project are 2.2 Electrical Distribution System to:
• Maximize and balance energy and cost The main switchboard described in the section above efficiencies to design for sustainability in state- shall include a distribution section with the following of-the-art buildings. feeder breakers.
• Design systems to allow for seamless operations • 250Amp 3phase panel for Pool Equipment and maintenance schedule. 150Amp 3phase panel for HVAC
• Electrification of Mechanical and Pool process • 10Amp 3phase panel for domestic hot water equipment systems
• (2) additional 150Amp 3phase panels for general
1.2 Codes & Standards power and lighting
California Codes 2.3 PV System
• California Building Code (CBC), Volumes #1 and
#2 (Part 2, Title 24, CCR). Include a 24kW grid-tied PV system. System • California Building Code (Part 3, Title 24, CCR). Equipment shall include the following:
• California Fire Code (CFC) (Part 9, Title 24, CCR). • (64) LG Solar 375W LG375N1C-A6 PV Modules • California Green Code (Part 11, Title 24, CCR). • String Wiring with Cable and Wire Management • California Referenced STANDARDS CODE (Part 12, Supports Title 24, CCR). • (4) 6.0 KW SE-6000H-US 240 V 1 PH SolarEdge • NFPA 72 National Fire Alarm Code. Inverter
• ADA Standards for Accessible Design. • (64) P401 SolarEdge DC Optimizers • City Electrical Department Standards. • PV Sub Panel(s), (1) 200A Main, 225A Bus, 240V/120V 1 PH, 3 Wire, 35kAIC with (4) 35A/2P
branch circuit breakers
PV & Battery Disconnect, (1) 200A, fused at 125A,
240 1 PH
PV Roof Mount Racking Equipment
• PV Monitoring System
2.4 Emergency Power System
Code required emergency load for this project are
the following:
• Emergency and Egress Lighting
• Exit Signs
Fire Alarm
Secondary source of power for the emergency loads
San Mateo Joinville Swim Center Analysis and Feasibility Study 101 will be via central lighting inverters for emergency 2.6 Grounding lighting and local batteries for the other loads
described above. • Grounding will be accomplished by utilizing a UFER grounding system, rods, and connections to
2.5 Branch Distribution active cold water pipe and building steel. • A single point grounding system will be
• Branch circuit design will not exceed a maximum established via main ground bus located in the of 1,080 volt amperes per 20 ampere, 120 volt main electrical room. The main ground bus will circuit for general areas. function as a connection point for the grounding • Branch circuit design for computer rooms, and bonding systems within the room. offices, and administration will not exceed a • A minimum of two ground rods will be located in maximum of 720 volt amperes per 20 ampere, 120 opposite corners of the room and will be outside volt circuit. the main switchgear. The ground rods will be • Motors of 1/2 horsepower and larger will be exothermically connected to the electrical room served at 208 volt service, 3 phase, 3 wire + ground loop. ground. Separately derived systems will be grounded per • Motors less than 1/2 horsepower will be served at CEC requirements. Grounding of emergency 120 volt service, 1 phase, 2 wire + ground. generators will conform to CEC 250.30 - • All multi-wire branch circuits will be installed Grounding Separately Derived Alternating Current with dedicated neutrals. Highly loaded, 20-amp, Systems. continuous electrical loads, such as circulation A telecommunications ground bus will be lighting and servers, will have increased wire sizes installed in all telecommunication rooms. The (i.e.: from #12 to #10) in order to reduce power ground bus will include stainless steel mounting loss in the wiring. brackets, an insulator, and a pre-drilled • Separate wires in conduit will be provided for copper bus bar. Isolated ground buses will be each of the following loads: provided in distribution equipment serving telecommunication rooms.
Mechanical and Pool Systems
• 208V, 3 phase, 3 wire + ground, 60 hertz. 2.7 Power Monitoring • 208V, 1 phase, 2 wire + ground, 60 hertz.
• 120V, 1 phase, 2 wire + ground, 60 hertz. A main building meter will be provided at the main switchboard. Additionally, we recommend
Lighting submetering of end use loads. A multipoint metering 12OV, 1 phase, 2 wire + ground, 60 hertz. system shall be used at the main switchboard to monitor all feeder breakers. Sub-meters will be web-
General Purpose Receptacles enabled and communicate to the building energy • 120V, 1 phase, 2 wire + ground, 60 hertz. management system.
Head-ends for Signal Systems
(i.e.: BMS, Security, Fire Alarm, Lighting
Controls, etc.)
120V, 1 phase, 2 wire + ground, 60 hertz.
102
2.8 Lighting Controls
• An addressable lighting control system will have
the ability for granular control and monitoring of
each luminaire and associated lighting control
device, load monitoring, and automatic demand
response (ADR) capability. Addressable lighting
controls will be Wattstopper DLM.
• Time schedules shall be defined in the BMS and
shared with the lighting control system.
• The primary method of controlling interior
luminaires while conserving energy in the building
will be achieved through the use of occupancy
sensors and manual override switches. Lighting
control devices will be integrated into an
addressable system.
• Occupancy sensors will be set to "manual on/
auto off" in offices and conference rooms; "auto
on/auto off" for restrooms and support areas.
Emergency lighting will be controlled with other
lights. Occupancy sensors that control stairs and
emergency egress lighting will be bypassed to
provide 100% illumination in the event of normal
power failure.
• Photosensors will dim luminaires based on
available daylighting.
Astronomical time clock controls, occupancy
sensors, and/or photosensors will be provided for
exterior, site, and landscape lighting applications
via the lighting control system. Lighting will
automatically turn on or off as appropriate
throughout the course of the day. Photosensors
will allow dimming based on scheduled times,
occupancy sensor control overrides at night, and
adjustment based on available daylight levels.
• Daylight harvesting will be designed and specified
to reduce energy where natural daylight occurs in
abundant and sufficient levels. Spaces, receiving
sufficient, natural sunlight from glazing, will be
equipped with a dimmable lighting system to
automatically adjust the amount of electric
light against available and constantly fluctuating
daylight. This continuously dimming system
consists of photocells, daylight dimming control
modules, and dimmable 0-10VDC drivers for each
space.
San Mateo Joinville Swim Center Analysis and Feasibility Study 103 3 ELECTRICAL EQUIPMENT
3.1 Switchboard 3.3 • Conduit and Wiring
Switchboards will be completely assembled, free Conductors will be copper, THHN or THWN-2, with standing, with copper bus bars, full neutral bus, PVC insulation; galvanized rigid steel (GRS) conduit and separate copper ground bus. All bus work in exterior or exposed interior work up to eight will be braced to withstand 65KAIC amperes RMS feet above finished floor, and for work embedded symmetrical. Short circuit values shall be revisited in in concrete; rigid nonmetallic conduit (HDPE) for all future design phase to determine actual ratings for all underground exterior work; concrete encased for all equipment. Protective devices will be provided with site underground, electrical metallic tubing (EMT) for approved barrier between sections and extended interior concealed work or above eight feet exposed; load terminals. Protective devices will consist of flexible metal conduit (Greenfield) for interior work circuit breakers. Circuit breaker selection will utilize in short lengths or liquid tight flexible metal conduit molded case type; be rated for application in their (Sealtight) wherever moisture may be present for the intended enclosure; include solid state tripping with connection of recessed luminaires, motors, separate adjustable long time, instantaneous, short time, building structures and any vibrating equipment. and ground fault. Additional spare branch feeder To avoid the potential environmental impacts of PVC breakers will be provided for future and spare coated power cables, we recommend the use of a capacity. Switchboard will be Eaton Cutler Hammer, cable similar to General Cable XHHW-2 VW-1, which Square D, GE, Siemens, or approved equal uses XLPE insulation in lieu of PVC.
3.2 Panelboards
Panelboards shall have door-in-door construction
with 42-poles, and copper bussing, unless otherwise
noted in single line diagram. Transient Voltage
Surge Suppressors shall be used on all panelboards
feeding all IT rooms (IDF, MDF, Site Cores, etc). For
pricing purposes, 208/120V panelboard bus work
will be braced to withstand 22kAIC amperes RMS
symmetrical.
Proposed: Square D, Eaton Cutler Hammer, or
approved
104
Electrical Improvement List
Executive Summary New lighting and lighting control system List of recommended improvements based on the • New interior and exterior lighting through out. electrification of Pool equipment and mechanical All lighting will be LED with 0-10v dimming with systems energy compliant lighting controls
• Assume $25/sqft lighting cost and $7/sqft lighting
control cost (Wattstopper DLM)
Service Upgrade
• Upgrade the existing electrical service from New receptacles throughout based on 250Amp to 600Amp (estimated), 208/120V, proposed program 3phase. Includes new pad mount transformer
and main switchboard. Assume main switchboard
will be outdoor rated. Switchboards will be
completely assembled, free standing, with
copper bus bars, full neutral bus, and separate
copper ground bus. All bus work will be braced
to withstand 22KAIC amperes RMS symmetrical.
Protective devices will consist of circuit breakers.
Circuit breaker selection will utilize molded
case type; be rated for application in their
intended enclosure; include solid-state tripping
with adjustable long time, instantaneous, short
time, and ground fault. Additional spare branch
feeder breakers will be provided for future and
spare capacity. Switchboard will be Eaton Cutler
Hammer, Square D, GE, Siemens, or approved
equal
Include feeder branch breakers per Item 2 below.
Electrical Distribution Equipment Replacement
250Amp 3phase panel for Pool Equipment
150Amp 3phase panel for HVAC
• 10Amp 3phase panel for domestic hot water
systems
• (2) additional 150Amp 3phase panels for general
power and lighting
• Panelboards shall have door-in-door
construction with 42-poles, and copper bussing,
unless otherwise noted in single line diagram.
Transient Voltage Surge Suppressors shall be
used on all panelboards feeding all IT rooms. For
pricing purposes, 208/120V panelboard bus work
will be braced to withstand 22kAIC amperes RMS
symmetrical. Proposed: Square D, Eaton Cutler
Hammer, or approved
• New grid tied PV system. Assume 24kW Grid-tied
PV system
San Mateo Joinville Swim Center Analysis and Feasibility Study 105 106
9. Conceptual Design Cost Plan
mack
project, cost & construction management
San Mateo Joinville Swim Center Analysis and Feasibility Study 107 108
CONTENTS Page
Commentary.. 113 - 114
Overall Summary................ ... 115 - 117
(E) Building Upgrades... 118 - 126
(E) Swimming Pool Remodel. •• 127 - 132
Site Improvement.... .. 133 - 136
Priority 2... .. 137 - 140
San Mateo Joinville Swim Center Analysis and Feasibility Study 109 110
Conceptual Design Cost Plan
Commentary
Joinville Swim Center
Introduction
Basis of Cost
Assumptions
Exclusions
April 23, 2024
mack
San Mateo Joinville Swim Center Analysis and Feasibility Study 111 112
Commentary mack5
Job #24842
April 23, 2024
introduction
mack5 was requested to carry out a Conceptual Design Cost Risk Register Planter, caped at 211 evain venes San Mite, SA4 94403.
Exclusions
Project Scope The first part of the Report contains the basis of the report, thi Assumptions assumptions made, description of the project scope, and exclusions to the costs which contain items that have potential to Basis of Cost
impact cost at some point in the future.
Introduction
The Overall Summary section contains a Summary of Gross Floor Areas, an Overall Project Summary, and Component anc Trade Cost Summaries with Graphs
Each section contains Control Quantities, a Cost Summary and Graph, and a Detailed Breakdown of Costs.
Graph
Unit Costs
Total Cost
Overall
Summary
San Mateo Joinville Swim Center Analysis and Feasibility Study 113 Commentary macks
Job #24842
April 23, 2024
project introduction
The City of San Mateo wishes to renovate their existing Joinsville Swimming Pool Facilities. The bridict co isists of an astes eat of taurent physical condition of terror is n buildings, including structural analysis,
shells/finishes, equipment & pipings, and code & accessibility requirement. items used for cost estimatel
pricing documents Preliminary estimate package prepared by ELS, dated 02/29/2024
IDA Structural Engineers Memorandum, dated 2/7/2024
Mechanical/Plumbing narrative, dated 2/7/2024
Electrical narrative prepared by RIJA Consulting, dated 2/23/2024
Existing building documents
assumptions
(a) Construction will start in March, 2026
(b) A construction period of 5 months
(c) The general contract will be competitively bid by a minimum of five (5) qualified contractors
(d) The general contractor will have full access to the site during normal business hours
(e) There are no phasing requirements
(f) The contractor will be required to pay prevailing wages exclusions
(a) Cost escalation beyond a midpoint of May, 2026
(b) Loose furniture and equipment except as specifically identified (c) Compression of schedule, premium or shift work, and restrictions on the contractor's working hours
(d) Soft Cost such as testing and inspection fees, architectural design and construction management fees, assessments, taxes, finance, legal and development charges
(e) Scope change and post contract contingencies
(f) Environmental impact mitigation
(g) Temporary housing for displaced management and staff (h) Moving and relocation cost
114
San Mateo Joinville Swim Center Analysis and Feasibility Study 115 116
Conceptual Design Cost Plan
Overall Summary
Joinville Swim Center
Gross Floor Areas
Overall Summary
Component Summary
Trade Summary
April 23, 2024
mack
San Mateo Joinville Swim Center Analysis and Feasibility Study 117
mack
Overall Summary Job #24842
April 23, 2024
PRIORITY 1: Area % $/SF $,000
(N) Building Addition for Pool Equipment - Allowance 625 SF 8% $900.00 $563 (N) Building Addition for (N) family changing room with 125 SF 3% $1,500.00 $188 shower, toilet & lavatory
(E) Building Upgrades 4,360 SF 25% $404.13 $1,762
(E) Swimming Pool Remodel 17,598 SF 62% $247.02 $4,347
Site Improvement 856 SF 2% $165.89 $142
TOTAL BUILDING CONSTRUCTION & SITEWORK $7,002
PRIORITY 2: $,000
Remodel & Reconfigure (E) Locker Rooms (2,220SF) $1,426 (N) All-Electric Pool Equipment & Electrical Service Upgrade - Allowance $953 San Mateo Joinville Swim Center Analysis and Feasibility Study 119 120
Figure 10: Extended roof area from 1987 Phase 2 improvements Conceptual Design Cost Plan
(E) Building Upgrades
Joinville Swim Center
Control Quantities
(E) Building Upgrades Summary
Detailed Cost Breakdown
April 23, 2024
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San Mateo Joinville Swim Center Analysis and Feasibility Study 121 122
|(E) Building Upgrades Control Quantities Job #24842 macks April 23, 2024
Enclosed Areas
(N) Building Addition, 625SF see Overall Summary
(E) Pool Equipment Space 597
(E) 1987/89 Office/Bathouse & Activity 1,543
(E) 1968 Locker Rooms 2,220
Subtotal of Enclosed Area 4,360
San Mateo Joinville Swim Center Analysis and Feasibility Study 123 (E) Building Upgrades Summary Job #24842 mack
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CS/ UniFormat Summary 4,360 SF $/SF $,000
SUBSTRUCTURE
Foundations 6% $25.00 $109
SHELL
Superstructure 12% $50.00 $218
Enclosure 13% $50.69 $221
Roofing 0% $0.00 $0
INTERIORS
Interior Construction 3% $11.84 $52
Stairs 0% $0.00 $0
Interior Finishes 3% $12.29 $54
SERVICES
Conveying - - -
Plumbing 4% $18.17 $79
Heating, Ventilation, & Air Conditioning 0% $0.00 $0
Fire Protection 0% $0.00 $0
Electrical 21% $86.40 $377
EQUIPMENT & FURNISHINGS
Equipment 0% $0.00 $0
Furnishings 0% $0.00 $0
Selective Building Demolition 0% $2.00 $9
Subtotal - Building Construction 63% $256.39 $1,118
Bonds & Insurance 3.00% 2% $7.69 $34
General Conditions 10.00% 7% $26.41 $115
Contractor's Overhead & Profit 5.00% 4% $14.52 $63
Subtotal 75% $305.05 $1,330
Design Contingency 20.00% 15% $61.01 $266
Cost Escalation 10.41% 9% $38.11 $166
TOTAL CONSTRUCTION BUDGET 100% $404.13 $1,762
NOTE: Inclusions and Exclusions listed in the Commentary Section. 124
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CS/ UniFormat Summary
Foundations
Superstructure
Enclosure
Roofing
Interior Construction
Stairs
Interior Finishes
Conveying
Plumbing
Heating, Ventilation, & Air Conditioning
Fire Protection
Electrical
Equipment
Furnishings
Bonds & Insurance
General Conditions
Contractor's Overhead & Profit
Design Contingency
Cost Escalation
850 5700 5750 500
Cummar, 1 Dano a
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FOUNDATIONS Quantity Unit Rate Total ($)
Standard Foundations
Allowance for seismic retrofit 4,360 GSF $25.00 $109,000 Subtotal For Foundations: $109,000
SUPERSTRUCTURE Quantity Unit Rate Total ($)
Structural Framing
Allowance for seismic retrofit 4,360 GSF $50.00 $218,000 Subtotal For Superstructure: $218,000
ENCLOSURE Quantity Unit Rate Total ($)
Vall Framing, Furring & Insulation + Exterior Finishe
llowance for Locker Room remodel onl 4,360 GSF $50.00 $218,000 Exterior Doors, Frames And Door Hardware
(N) Automatic door operators at exits from
locker rooms to pool deck 2 EA $1,500.00 $3,000
Subtotal For Enclosure: $221,000
ROOFING Quantity Unit Rate Total ($)
No Work Anticipated In This Section
Subtotal For Roofing:
126
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INTERIOR CONSTRUCTION Quantity Unit Rate Total ($)
Interior Partitions
Allowance for (N) accessible shower in mens
locker room 1 LS $10,000.00 $10,000
Toilet fittings and accessories
Minor accessibility upgrades at (E) locker
room 2,220 SF $5.00 $11,100
Miscellaneous
Rough carpentry 4,360 GSF $2.00 $8,720
Cut/patch and repair areas affected by the
structural/mechanical/elecrical upgrade 4,360 GSF $5.00 $21,800 Subtotal For Interior Construction: $51,620
STAIRS Quantity Unit Rate Total ($)
No Work Anticipated In This Section
Subtotal For Stairs:
INTERIOR FINISHES Quantity Unit Rate Total ($)
Wall Finishes
(N) Paint throughout 4,360 GSF $5.00 $21,800
(N) Ceramic wall tiles at accessible shower in
mens locker room 1 LS $10,000.00 $10,000
Miscellaneous - Allowance
Cut/patch and repair areas affected by the
structural/mechanical/elecrical upgrade 4,360 GSF $5.00 $21,800 Subtotal For Interior Finishes: $53,600
CONVEYING Quantity Unit Rate Total ($)
No Work Anticipated In This Section
Subtotal For Conveying:
San Mateo Joinville Swim Center Analysis and Feasibility Study 127 (E) Building Upgrades Detail Job #24842 mack
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PLUMBING Quantity Unit Rate Total ($)
Fixtures & Associated piping; (N) water-efficient
plumbing fixture at remodelled locker room
New high/low drinking fountains on pool deck 2 EA $5,000.00 $10,000 New accessible shower in Men's locker room, 1 EA $5,000.00 $5,000 Hot water return distribution 100 LF $72.00 $7,200
Equipment
Replace mechanical equipment and water
heaters;
Sanco2 heat pump 6 EA $5,500.00 $33,000
Tank, 119 gal 1 EA $12,000.00 $12,000
Circ pump & Exp tank LS $2,000.00 $2,000
Mixing valve 1 LS $10,000.00 $10,000
Subtotal For Plumbing: $79,200
HEATING, VENTILATION, & AIR-CONDITIONING Quantity Unit Rate Total ($) No Work Anticipated In This Section See Priority 2
Subtotal For Heating, Ventilation, & Air-Conditioning:
FIRE PROTECTION Quantity Unit Rate Total ($)
No Work Anticipated In This Section See Priority 2
Subtotal For Fire Protection:
ELECTRICAL Quantity Unit Rate Total ($)
Service and Distribution Upgrade NIC, See Priority 2
Standby Power System:
Solaredge Backup Interface 1 EA $7,000.00 $7,000
400A standby power panel with 200AMCB
208V 1Ph 1 EA $8,700.00 $8,700
Panel 100A 208/120V 1Ph 2 EA $3,500.00 $7,000
24kW Grid-tied PV system with 38.8kW Li lon
battery system 1 EA $114,000.00 $114,000
Structural steel support - allowance 1 LS $18,000.00 $18,000 AC Feeder allowance 1 LS $25,000.00 $25,000
PV conduit infrastructure allowance 1 LS $15,000.00 $15,000 128
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ELECTRICAL Quantity Unit Rate Total ($)
Machine and Equipment Connections
Mechanical and water hear connections:
Locker rooms - provide each locker room with
roof mounted upblast exhaus fan, ceiling hung
unit heater 2 EA $5,250.00 $10,500
Lobby/Open office - in-line supply fan roof
mounted 2 ton heat pump with two 1 ton high
wall mounted fan coils 1 EA $5,250.00 $5,250
Meeting room - in-line supply fan roof
mounted 2 ton with one 2 ton high wall
mounted fan coil 1 EA $5,250.00 $5,250
New ADO at exits from lockers rooms to pool
deck - ADO power connections 2 EA $3,500.00 $7,000
New high/low drinking fountations on pool
deck - allow 120V power connection EA $5,000.00 $5,000
Resilency Items:
Replace existing water heater paired with
multiple air source heat pumps using
electricity Instead of gas 6 EA $4,285.00 $25,710
Add 1/64 HP circulating pump EA $1,575.00 $1,575
Addition of 625 sf to house new equipment -
electrical works - lighting, power, fire alarm Included In Overall Summary - (N) Bldg Addition Power Receptacles and Misc Power
New power receptacles throughout based on
proposed program 4,950 SF $10.00 $49,500
Lighting & Branch Wiring
New interior and exterior LED lighting through See Priority 2 Lighting Control and Branch Wiring
New energy compliant lighting controls See Priority 2
Communications, AV, PA, FA & Security
Telecom Excluded
AV Conduit rough-ins only Excluded
Paging System Excluded
Fully addressable fire alarm system Excluded
Access Control System/Intrusion Burglar
Alarm System Excluded
CCTV Surveillance Camera System Excluded
San Mateo Joinville Swim Center Analysis and Feasibility Study 129 |(E) Building Upgrades Detail Job #24842 mack
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ELECTRICAL Quantity Unit Rate Total ($)
Miscellaneous Electrical Work
Permits/Fees 1 LS $7,500.00 $7,500
Selective Trade demolition - electrical 1 LS $27,225.00 $27,225 Temporary Power 1 LS $15,000.00 $15,000
Seismic Bracing/Firesealing/Grounding
allowance 1 LS $10,000.00 $10,000
Testing & commissioning/Coordination
1 LS $12,500.00 $12,500
Subtotal For Electrical: $376,710
EQUIPMENT Quantity Unit Rate Total ($)
No Work Anticipated In This Section See Priority 2
Subtotal For Equipment:
FURNISHINGS Quantity Unit Rate Total ($)
No Work Anticipated In This Section See Priority 2
Subtotal For Furnishings:
SELECTIVE BUILDING DEMOLITION Quantity Unit Rate Total ($) Interior Building Demolition
Demolition due to minor accessibilty upgrades
4,360 SF $2.00 $8,720
Hazardous Materials Abatement NIC, Excluded
Subtotal For Selective Building Demolition: $8,720
130
Conceptual Design Cost Plan
(E) Swimming Pool Remodel
Joinville Swim Center
Control Quantities
(E) Swimming Pool Remodel Summary
Detailed Cost Breakdown
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(E) Swimming Pool Remodel Control Job #24842
Quantities April 23, 2024
Swimming Pool Areas
Swimming Pool 3,600
Training Pool 1,825
Pool deck 12,173
Subtota 17,598
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CS/ UniFormat Summary 17,598 SF % $/SF 5,000
Site Preparation 0% $0.00 $0
Site Improvement 0% $0.00 $0
Site Mechanical Utilities 0% $0.00 $0
Site Electrical Utilities 0% $0.00 $0
Swimming Pool Budget (Excluding Pool Deck) 63% $156.72 $2,758 Subtotal - Sitework 63% $156.72 $2,758
Bonds & Insurance 3.00% 2% $4.70 $83
General Conditions 10.00% 7% $16.14 $284
Contractor's Overhead & Profit 5.00% 4% $8.88 $156
Subtotal 75% $186.44 $3,281
Design Contingency 20.00% 15% $37.29 $656
Cost Escalation 10.41% 9% $23.29 $410
TOTAL CONSTRUCTION BUDGET 100% $247.02 $4,347
NOTE: Inclusions and Exclusions listed in the Commentary Section.
San Mateo Joinville Swim Center Analysis and Feasibility Study 133 (E) Swimming Pool Remodel Detail Job #24842 mack
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SITE PREPARATION Quantity Unit Rate Total ($)
Site Protective Construction
Erosion control; including storm drain inlet
protection, fiber rolls, stabilized construction
entrance/exit, and curb inlet sediment dam
(Outdoor swimming pool area only) Included Under Site Improvement Subtotal For Site Preparation:
SITE IMPROVEMENT Quantity Unit Rate Total ($)
Pool Deck
Concrete pool deck included in swimming pole Budget
Subtotal For Site Improvement:
SITE MECHANICAL UTILITIES Quantity Unit Rate Total ($)
Pool Water Heating
Pool Heat pump, pool heat exchanger,
valves, piping and associated connections included in swimming pole Budget Subtotal For Site Mechanical Utilities:
SITE ELECTRICAL UTILITIES Quantity Unit Rate Total ($)
Service and Distribution - Pool Included In Swimming Pool Budget Machine and Equipment Connection Included In Swimming Pool Budget Power Receptacles and Misc Power
Connections Included In Swimming Pool Budget
Lighting and Power Specialties Wiring Included In Swimming Pool Budget Communications, AV, PA, FA & Security
Telecommunications system Included In Swimming Pool Budget PA System Included In Swimming Pool Budget
CCTV Surveillance Camera System Included In Swimming Pool Budget Area of Rescue System (AOR) Included In Swimming Pool Budget Subtotal For Site Electrical Utilities:
134
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SWIMMING POOL BUDGET Quantity Unit Rate Total ($)
Swimming Pool Budget (provided by Aquatic
Design Group thru els)
1.0 Code Concerns
(N) Mechanical and chemical equipment to
rectify code violation 1 LS $700,000.00 $700,000
(N) Pool finishes 1 LS $375,000.00 $375,000
(N) Deck and deck drainage 1 LS $500,000.00 $500,000
(N) Depth markers/Safety signage 1 LS $6,000.00 $6,000
(N) ADA Access for pools; including ADA
compliant chair lifts and stairs with dual ADA
compliant handrail 1 LS $100,000.00 $100,000
Convert pools to skimmer pools 1 LS $400,000.00 $400,000
2.0 Maintenance & Operations
(N) Under pool piping 1 LS $350,000.00 $350,000
Eliminate surge tank 1 LS $30,000.00 $30,000
Alter depths in large pool if desired - allow LS $150,000.00 $150,000 (N) Mechanical room door, frame and
hardware 1 LS $4,500.00 $4,500
(N) Mechanical/chemical building space to
accommodate additional equipment, 625SF see Overall Summary Room finishes improvement for (E)
mechanical and chemical spaces 1 LS $75,000.00 $75,000
(N) Deck electrical outlets 1 LS $7,500.00 $7,500
(N) Underwater LED pool lights 1 LS $60,000.00 $60,000
Subtotal For Swimming Pool Budget: $2,758,000
San Mateo Joinville Swim Center Analysis and Feasibility Study 135 136
Conceptual Design Cost Plan
Site Improvement
Joinville Swim Center
Site Improvement Summary
Detailed Cost Breakdown
April 23, 2024
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CS/ UniFormat Summary 856 SF % $/SF $,000
Site Preparation 2% $2.90 $2
Site Improvement 61% $101.75 $87
Site Mechanical Utilities 0% $0.00 $0
Site Electrical Utilities 0% $0.00 $0
Subtotal - Sitework 63% $104.65 $90
Bonds & Insurance 3.00% 2% $3.14 $3
General Conditions 10.00% 6% $10.78 $9
Contractor's Overhead & Profit 5.00% 4% $5.93 $5
Subtotal 75% $125.00 $107
Design Contingency 20.00% 15% $25.00 $21
Cost Escalation 10.41% 1% $15.62 $13
TOTAL CONSTRUCTION BUDGET 100% $165.89 $142
NOTE: Inclusions and Exclusions listed in the Commentary Section.
CS/ UniFormat Summary
Site Preparation
Site Improvement
Site Mechanical Utilities
Site Electrical Utilities
Bonds & Insurance
General Conditions
Contractor's Overhead & Profit
Design Contingency
5700
138
Site Improvement Control Quantities Job #24842 mack
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Site Area
(N) Exist Walkway 740
(N) Trash Enclosure 116
Subtotal of Enclosed Area 856
San Mateo Joinville Swim Center Analysis and Feasibility Study 139 Site Improvement Detail Job #24842 mack
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SITE PREPARATION Quantity Unit Rate Total ($)
Site Demolition
Demo and remove (E) landscape area, for
new exit walkway 740 SF $2.00 $1,480
Site Protective Construction
SWPP/Erosion control; including storm drain
inlet protection, fiber rolls, stabilized
construction entrance/exit, and curb inlet LS $1,000.00 $1,000 Subtotal For Site Preparation: $2,480
SITE IMPROVEMENT Quantity Unit Rate Total ($)
Pedestrian Paving
(N) Exit walkway 740 SF $25.00 $18,500
Connect to (E) path in the park 84 $100.00 $8,400
Trash Enclosure
Relocate trash enclosure 116 SF $200.00 $23,200
Landscaping
Modify (E) planting area as required for new
exits and exit pathway - allowance 1 LS $5,000.00 $5,000 Fencing & Miscellaneous Accessories NIC, Excluded
(N) Exit gates with panic hardware,
double leaf 6'-0" wide 4 PR $8,000.00 $32,000
Subtotal For Site Improvement: $87,100
140
Conceptual Design Cost Plan
Priority 2 - ADD Alternates
Joinville Swim Center
Alternates Cost Breakdown
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Remodel & Reconfigure (E) Locker Rooms Quantity Unit Rate Total ($) ADD:
Interior Partitions (Locker Room Remodel Only)
Non-rated partition; including metal stud
framing, insulation and gypsum board on both
sides, 0.10/SF 222 LF $432.00 $95,904
Backing and blocking, provide 16 gauge or
heavier metal blocking and backing at all wall
or ceiling mounted items including but not
limited to light fixtures, handrails, grab bars,
cabinetry, bulletin boards, equipment,
shelving, signage, etc. 2,220 SF $2.00 $4,440
Interior Doors & Door Hardware
(N) Single leaf door, 34EA/LF 7 EA $4,000.00 $28,000
Toilet fittings and accessories
Standard toilet partition, phenolic 5 EA $1,800.00 $9,000 ADA toilet partition, phenolic 2 EA $2,000.00 $4,000
Shower enclosure, phenolic 8 EA $3,000.00 $24,000
Urinal screen, phenolic 3 EA $500.00 $1,500
Toilet accessories; including toilet tissue
dispenser, napkin disposal, seat cover
dispenser, soap dispenser, waste receptacle,
grab bar, paper towel dispenser, wall mirror,
etc. 7 STALL $5,000.00 $35,000
Shelving and millwork
Janitor's mop and broom holder EA $500.00 $500
Quartz solid surface vanity countertop &
backsplash 12 LF $350.00 $4,200
Custom wood reception desk with lower &
upper soiled surface countertop and low
swing doors 1 LS $10,000.00 $10,000
Chalkboards, insignia and graphics
Door signage 7 EA $200.00 $1,400
Directional/wayfinding & code signage 2,220 SF $3.00 $6,660 Miscellaneous
Rough carpentry 2,220 SF $2.00 $4,440
Cut/patch and repair areas affected by the
structural/mechanical/electrical upgrade 4,360 GSF $5.00 $21,800 142
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Remodel & Reconfigure (E) Locker Rooms Quantity Unit Rate Total ($) ADD:
Plumbing
Remodel and reconfigure locker rooms with
new showers; New plumbing fixtures,
including minimum 3 toilets and 3 urinals for
men, 4 toilets for women, 3 lavatories each. 4
showers each for men and women, 10 Floor
34 EA $6,500.00 $221,000
Plumbing related items & Demo 1 LS $30,000.00 $30,000
HVAC System
Locker room;
Exhaust 2 EA $5,000.00 $10,000
Electric unit heater 2 EA $3,500.00 $7,000
Lobby / Office;
Supply fan 1 LS $5,000.00 $5,000
Rooftop packaged heat pump, 2 ton with two LS
1 1 ton fan coils $16,000.00 $16,000
Refrigerant line sets 200 LF $48.00 $9,600
Meeting Rm.;
Supply fan with relief vent 1 LS $6,200.00 $6,200
Rooftop packaged heat pump, 2 ton with one 1 LS
1 ton fan coil $14,000.00 $14,000
Refrigerant line sets 120 LF $48.00 $5,760
HVAC Related items & Demo 1 LS $15,000.00 $15,000
Fire Sprinkler System
Allowance at remodeled locker room 4,360 GSF $12.00 $52,320 Lighting & Branch Wiring
New interior and exterior LED lighting through 4,360 GSF $25.00 $109,000 Lighting Control and Branch Wiring
New energy compliant lighting controls 4,360 GSF $7.00 $30,520 Miscellaneous Equipment
Breakroom and lifeguard equipment;
including refrigerator, ice machine,
microwave, etc. (at lifeguard, activity room & 1 LS $10,000.00 $10,000 Swimsuit spinner - allowance 1 EA $2,500.00 $2,500
San Mateo Joinville Swim Center Analysis and Feasibility Study 143 Alternates Job #24842 mack
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Remodel & Reconfigure (E) Locker Rooms Quantity Unit Rate Total ($) Amenities & convenience items
Phenolic lockers & pedestal bench 4,360 GSF $15.00 $65,400 Portable Fire extinguisher - allowance 2 EA $500.00 $1,000 Moveable Furnishings
FF&E Allowance NIC, OFOI
Conference/meeting tables and chairs NIC, OFOI
Office tables and chairs NIC, OFOI
Interior Building Demolition
Interior demolition; including walls/doors and
floor/wall/ceiling finishes - remodeled area 4,360 GSF $10.00 $43,600 Mark-up's per Overall Summary 57.62% $521,325
Subtotal for Remodel & Reconfigure (E) Locker Rooms (2,220SF): $1,426,069 (N) All-Electric Pool Equipment & Electrical
Service Upgrade - Allowance Quantity Unit Rate Total ($) ADD:
Swimming Pool Equipment - Cost premium for
All-electric equipment (ref. Piedmont Project) 1 LS $500,000.00 $500,000 Upgrade existing service from 250A to 600A
208/120V. Upgrade existing transformer pad
and main indoor switchboard, 22kAIC and
feeder breakers. Upgrade associated feeders 1 EA $53,500.00 $53,500 Replace equipment below:
Panel 250A 208/120V 3Ph 22kAIC for Pool 1 EA $7,500.00 $7,500 Panel 250A 208/120V 3Ph 22KAIC for HVAC 1 EA $7,500.00 $7,500 Panel 150A 208/120V 3Ph 22kAIC for hot
water systems 1 EA $5,100.00 $5,100
Panel 150A 208/120V 3Ph 22kAIC for
general power and lighting 2 EA $5,100.00 $10,200
Provide TVSS for each panelboard 5 EA $4,100.00 $20,500 Mark-up's per Overall Summary 57.62% $348,205
Subtotal for (N) All-Electric Pool Equipment & Electrical Service Upgrade - Allowance: $952,505 144
Appendix:
10. Site Visit Notes and Code Analysis
els urban durga
'urban design
San Mateo Joinville Swim Center Analysis and Feasibility Study 145 146
Potential Issues General Observations
• Pool deck exiting does not comply with code Community/ Multi-use room:
requirements. 2022 CBC occupant load • Room includes tables and chairs, announcement calculations requires in excess of 18' of exit width. boards and white board, storage cabinets. Walls Only one exit gate with panic hardware (approx. 4' are painted CMU. A kitchenette includes an wide is provided) electric stove with hood, sink and cabinets. There Pool deck is in poor shape, cracked and uneven. is a full-size refrigerator in the room. VCT flooring Deck drainage and accessibility are affected. in the kitchenette area. • Plumbing fixtures in locker rooms: Both locker Electric stove with residential range hood likely rooms do not have sufficient toilets and lavs to does not meet current fire code requirements meet 2022 CBC. One additional toilet and one lav (Type 1 hood typically required). are needed for Women and one additional toilet, • Heater suspended from ceiling was recently lav, and urinal for men. Accessible shower in moved there (according to staff) but does not Men's locker rooms does not have walls on three look up to date (mechanical engineers to review). sides and is likely not code compliant. • Carpet appears to be somewhat worn, but • Floor drains in men's and women's showers serviceable. appear to allow water from one bather to flow
into another bather's area-this is not permitted Pool and Pool Deck by current code.
• Some doors appear to lack sufficient strike Lap Pool
side and door swing clearance to meet current Pool is 82'-6" long. by six lanes (44 ft.) wide (per accessibility requirements. existing building drawings). Depth ranges from 4 • According to existing building drawings, there is feet minimum to 6'-3" at the deepest point. Pool is no insulation in walls or roof. currently covered.
• Cracks have been observed in both swimming Significant cracking in the pool along the sides, pools. near the vertical pool walls.
• Wood outrigger beams supporting roof overhang According to staff, accessible lifts are attached to are visibly deteriorated. the pool deck during times when the pool is open (3 months per year).
• Pool water area: 3,630 square feet.
Rec Pool
• Pool depth ranges from 2 feet at each end to 3'-
9" at the deepest point.
• Pool is to be 60 ft. long by 30 ft. wide. Pool water
area: 1,800 square feet.
Pool Deck
• The large concrete pool deck is surrounded by
lawn on two sides.
• Portions of the pool deck around the pools
and between the pools have been covered
by a gray coating, presumably for purposes of
waterproofing and bridging over cracks.
• There is evidence of widespread cracking and
movement in the pool deck in both areas that
have been coated and areas without coating.
Cracks have been repaired, in some cases
multiple times, with some type of gray sealant.
There is significant cracking around deck drains,
and in some cases there is water ponding on the
deck from recent rain.
San Mateo Joinville Swim Center Analysis and Feasibility Study 147 • There are on-deck showers, one unit with three person's waste water not to flow into another's heads outside of the locker room entrance. For shower area. (CPC 408.8: "wastewater from one outdoor showers, recommend high and low bather shall not pass over areas occupied by shower heads with controls within accessible other bathers.") reach ranges. Controls do not appear to meet Separate accessible shower stall has padded fold- accessible reach range requirements, this is down seat, grab bars and hand-held controls. recommended, but not a code requirement to my • Locker area includes bench and mirror and knowledge. accessible lockers have been designated.
• Small building with sign saying "Guard's Quarters" •Number of toilets required appears to be one along with adjacent fenced enclosure not short, taking into account the pool water area.
Three lavatories are required, and only two are
• There appears to be one drinking fountain on installed. deck. Two are required
Men's Locker Room
Pool Equipment Room • Locker room includes: 2 toilets and two urinals lone accessible toilet stall and one accessible
• Equipment appears dated and worn urinal). Per code, 3 toilets and 3 urinals required. • An eyewash station has been added outside of 3 lavatories are required, 2 are provided. the pool equipment room, on the pool deck. Finishes are the same as the Women's Locker Room. Gang shower has a similar configuration.
Building Interior • Accessible lockers have been provided, along with an accessible bench. Mirror on wall is not at
Office Area accessible mounting height.
• Accessible shower with folding seat and handheld
• Walls are CMU with exposed structure (beams
and decking) wiring of light fixtures is surface- controls is located in a corner of the gang shower mounted. A series of open office areas looks out with no enclosing walls. This does not appear to the pool deck. to meet current accessibility standards which • A semi-circular area that projects out to the pool require a seat to be mounted on one side wall deck was reportedly a later addition. with grab bars on the back wall and opposite side • First aid room has an examination table, sink and wall. cabinets, and is partitioned off from the main
space by a curtain. Reference Materials
• A reception deck faces the entrance to the
facility and has a glass access window. The tollowing drawings and reports were provided as • Dutch doors lead from the office area into the reference materials for this assessment:
locker rooms on either side (women's locker 1. Original 1968 plans by August E. Waegemann, Civil rooms to the north and men's to the south) Engineer
• Office area includes a copier, and supplies along 2. 1987 Drawings Phase 2, Civil and Landscape only with a bulletin board, file cabinets, and other 3. 2022 Pool Leak Detection Reports assorted items such as branded clothing. 4. 2020 Pool Health Inspection Report Women's Locker Room
• Locker room includes: 3 toilets (assumed) with
one accessible stall, benches, changing stalls with
curtains, 2 lavatories with mirrors above, electric
hand dryer, lockers (2-high, either phenolic or
p-lam), swimsuit spinner.
• Finishes are 2x2 ceramic floor tile, painted CMU
walls with tile on shower walls.
• Showers are gang showers. Location of drains
does not appear to meet the requirement for one
148
Code Analysis
Plumbing Fixture Count per CBC 3116B CBC Chapter 31B, Public Pools Water Area: Pool configuration, CBC 3111B- 3115B: By ADG Lap Pool 3,630 sf 3114B.3 Deck slope. The pool's deck surface shall have a Rec Pool 1,800 sf slope of no less than 1 percent (s inch per foot) but no more Total Area 5,430 sf than 2 percent (/ inch per foot) away from the pool to a deck Total Users (@1 user/15 sf water area) 362 drainage system and shall be constructed and finished to pre- Users, Male and Female: 181 each vent standing water.
Plumbing Fixtures Required (CBC 3116B): CBC 3116B Dressing, Shower and Toilet Facilities Men 3116B.2 Number of sanitary facilities. For the purpose of Women this subsection, one pool user shall be considered for every Toilets 3
Urinals 3 15 square feet (1.39 m') of pool water surface area and/or Lavatories spray ground splash sone area.
3 Showers (one per 50 pool users)
3116B.2.1 Showers. One shower shall be provided for
Drinking Fountains 2
every 50 pool users.
Pool Deck Exiting: 3116B.2.2 Toilets. Separate toilet facilities shall be pro- vided for each ser. One toilet shall be provided for every 60 women or less and one toilet plus one urinal for every CBC Table 1004.5 includes the following allowances 75 men or less. swimming pool occupant loads:
3116B.2.3 Lavatories. One lavatory shall be provided for every 80 pool users.
Skating rinks, swimming pools
Rink and pool 50 gross
Decks 15 gross CBC 3116B.3 Construction
3116B.3 Construction.
Pool and Deck Occupant Calculation:
3116B.3.1 Floors. Floors shall have a hard, nonabsorbent surface, such as portland cement concrete, ceramic tile or Area Occupant
Load other approved material, which extends upwards onto the Pool Water 5,430 sf 109 wall at least 5 inches (127 mm) with a coved base. Floors Pool Deck 15,156 sf 1,011 which may be walked on by a wet pool user shall be slip Total 18,726 1,120 resistant. Floors shall be sloped not less than inch (6.4 mm) per foot to floor drains or other approved surface
water disposal areas. Carpeting and other similar artificial Minimum 4 exits required per CBC Table 1006.3.3 Noon covering shall nor be permited on shower and toiler 4 exits required if occupant load exceeds 1000. 3116B.3.2 Interior surfaces. The materials used in the walls, except for structural elements, shall be of a type Exit width required (using an occupant load factor of which is not adversely affected by moisture.
0.2 (per CBC 1005.3.2): 224" or 18'-8". One existing
4' wide gate with panic hardware exits from the pool SECTION 3117B area out towards the street. Need to review with
DRINKING FOUNTAINS
building official whether the path of exit travel from
the pool deck can go back through the building. One guarded jet drinking fountain shall be provided for the first 250 pool users and an additional fountain shall be pro- vided for each additional 200 pool users or fraction thereof This may require a negotiation with the building The number of pool users shall be determined according to official to determine how to calculate the occupant Section 3116B.2. load and whether some areas can be designated as
"Safe Dispersal Areas" within the fence line per CBC
1028.5.
San Mateo Joinville Swim Center Analysis and Feasibility Study 149 Building Code Scoping Requirements:
Current Valuation Threshold for Alterations,
Structural Repairs or Additions is $195,358.
California Existing Building Code, 2022:
CEBC 306.7:
306.7 Alterations. A facility that is altered shall comply with 306.7.11 Toilet rooms. Where it is technically infeasible the applicable provisions in Chapter 11 of the International to alter existing toilet rooms to be accessible, one accessi- Building Code, ICC A117.1 and the provisions of Sections ble single-user toilet room or one accessible family or 306.7.1 through 306.7.16, unless technically infeasible. assisted-use toilet room constructed in accordance with Where compliance with this section is technically infeasible, Section 1110.2.1 of the International Building Code is the alteration shall provide access to the maximum extent permitted. This toilet room shall be located on the same technically feasible. floor and in the same area as the existing toilet rooms. At the inaccessible toilet rooms, directional signs indicating the location of the nearest such toilet room shall be
306.7.1 Alterations affecting an area containing a provided. These directional signs shall include the Interna- primary function. Where an alteration affects the accessi- tional Symbol of Accessibility, and sign characters shall bility to, or contains an area of primary function, the route meet the visual character requirements in accordance with to the primary function area shall be accessible. The acces- ICC A117.1. sible route to the primary function area shall include toilet facilities and drinking fountains serving the area of 306.7.12 Bathing rooms. Where it is technically infeasi- primary function. ble to alter existing bathing rooms to be accessible, one accessible single-user bathing room or one accessible
Exceptions: family or assisted-use bathing room constructed in accor-
1. The costs of providing the accessible route are dance with Section 1110.2.1 of the Internationa/ Building not required to exceed 20 percent of the costs of Code is permitted. This accessible bathing room shall be the alterations affecting the area of primary func- located on the same floor and in the same area as the exist- tion. ing bathing rooms. At the inaccessible bathing rooms,
2. This provision does not apply to alterations lim- directional signs indicating the location of the nearest such ited solely to windows, hardware, operating con- bathing room shall be provided. These directional signs trols, electrical outlets and signs. shall include the International Symbol of Accessibility, and sign characters shall meet the visual character require-
3. This provision does not apply to alterations lim- ments in accordance with ICC A117.1. ited solely to mechanical systems, electrical sys-
tems, installation or alteration of fire protection
systems and abatement of hazardous materials.
5. This pro type does ning any to alged areas
150
Alterations:
SECTION 503
ALTERATIONS
503.1 General. Alterations to any building or structure shall comply with the requirements of the California Building Code or California Residential Code, as applicable, for new construction. Alterations shall be such that the existing build- ing or structure is not less complying with the provisions of the California Building Code or California Residential Code, as applicable, than the existing building or structure was prior to the alteration.
1.1.3 Scope. The provisions of this code shall apply to the construction, alteration, movement, enlargement, replace- ment, repair, equipment, ase and occupancy, location, main- lenance, removal and demolition of every building or
structure or any appurtenances connected or attached to such buikings or structures throughout the State of Califor- ia. (HCD 1 & 2) The provisions of this code shall apply t epair, alteration, change of occupancy, addition to and rel cation of every existing building or structure or any apporte- mances connected or affached to such buildings or structures throughout the State of California.
1.J.3./ Nonstate-regulated buildings, structures and
applications. Except as modified by local ordinance pur- stant to Section 1.1.8, the following standards in the Cali- fornia Code of Regulations, Title 24, Parts 2, 2.5, 3, 4, 5.
6. 9,10 and 11 shall apply to all occupancies and applica- tions not regulated by a state agency:
San Mateo Joinville Swim Center Analysis and Feasibility Study 151