S02 F2-1 Structural Design Criteria 523A5-10-316 Laundry Building 45.pdf
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- Attached to
- Z2EZ 523A5-10-316 Upgrade VISN 1 Laundry Building 45 Federal contract opportunity
- Solicitation number
- 36C24125R0008
About this file
This document is a Structural Design Criteria appendix for the Upgrade B45 Laundry project at the Brockton VA Medical Center. The criteria outline specific engineering and design standards for the renovation, including detailed specifications for structural loads, seismic considerations, and serviceability requirements. Key technical details include adherence to the 2021 International Building Code, ANSI/ASCE 7-16 standards, and specific load calculations such as a ground snow load of 35 psf, ultimate wind speed of 123 mph, and seismic design parameters with a Seismic Design Category of B. The document provides comprehensive deflection and drift criteria for existing and new roof and floor members, specifying precise load and deflection limits to ensure structural integrity and compatibility with building finish materials.
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Text version
Upgrade B45 Laundry
Brockton VA Medical Center
Page IV-1
Appendix F2.1
Structural Design Criteria
1. Codes & Standards:
a. International Building Code (IBC) 2021 Edition as modified by:
i. Seismic Design Requirements, H-18-8, Department of Veterans
Affairs.
b. ANSI/ASCE 7-16, Minimum Design Loads for Buildings and Other
Structures
c. ACI 318-19 Building Code Requirements for Structural Concrete
d. AISC 360-16, Specification for Steel Buildings
2. Design Loads
a. Dead Loads
i. Existing Roof and Existing Floor: Self weight of building materials
ii. Equipment loads as shown on the drawings.
b. Collateral Loads
i. Existing Roof and Existing Floor: 10 psf
c. Live Loads
i. Roof: 20 psf unreducible
ii. Walls: 5 psf minimum
d. Snow Loads: 35 psf Ground Snow Load
e. Wind loads:
i. Ultimate Wind Speed: V=123 mph
ii. Risk Category: II
iii. Wind Importance Factor: IW=1.0
iv. Wind Exposure: B
v. Internal Pressure Coefficient:
a) + 0.18 “Enclosed”
f. Seismic Loads
i. Risk Category: II
ii. Seismic Importance Factor: IE=1.0
Upgrade B45 Laundry
Brockton VA Medical Center
Page IV-2
iii. Mapped Spectral Response Accelerations:
a) SS=0.22
b) S1=0.059
iv. Site Class: D
v. Spectral Response Coefficients:
a) SDS=0.234
b) SD1=0.094
vi. Seismic Design Category: B
vii. Analysis Procedure Used: Equivalent Lateral Force Procedure
3. Serviceability
a. Drift & Deflection Criteria: The criteria used shall be compatible with finish materials for the building that are connected to the building structure.
i. Lateral Drift: 0.1xHsx
ii. Horizontal Deflection: L/240
iii. Vertical Deflection
a) Existing floor members:
1) Live Load: L/360
2) Dead + Live Load: L/240
b) Existing roof members:
1) Live Load: L/240
2) Dead + Live Load: L/180
c) New Roof Members
1) Live Load L/240
2) Dead + Live Load: L/180
d) New Floor Members
1) Live Load: L/360
2) Dead + Live Load: L/240
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