6-3-25446730-Stamped Calcs.pdf
PDF 1 MB Posted
- Solicitation number
- CR26014
- Issued by
- Iron County, Utah
About this file
The document is a set of structural calculations for the SUU Chemistry Lab Refresh project located at 370 W 200 S in Cedar City, Utah, prepared by BHB Structural for MHTN Architects. The project involves a structural assessment and renovation of an existing chemistry laboratory, with detailed calculations addressing gravity and lateral loading, seismic design parameters, and specific structural modifications. The calculations are dated July 17, 2025, and include a comprehensive analysis of the building's structural components, including dead loads, live loads, and seismic loads using the 2021 International Building Code.
The structural calculations provide technical details about the building's characteristics, including a building height of 48 feet, a risk category of III, and a seismic design category of D. The analysis includes specific structural considerations such as verifying that the chemistry lab refresh is not exerting more than 5% additional gravity loading on existing elements and not exceeding 10% lateral loading. The document outlines specific structural modifications, including cutting out and replacing wall segments, with a detailed assessment of shear wall capacity and load-bearing calculations. The calculations use specific engineering parameters such as spectral response acceleration, site coefficients, and response modification coefficients to ensure the structural integrity of the renovation.
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Text version
2766 South Main Street - SLC, Utah 84115 - Phone: 801.355.5656 - Fax: 801.355.5950 www.bhbengineers.com
Cedar City, UT 84720 370 W 200 S
Salt Lake City, Utah 84101
DBP
280 South 400 West Suite 250
MHTN Architects
Structural Calculations
BHB Project # 250382
SUU Chemistry Lab Refresh
These calculations were prepared solely for the client and project listed on the cover sheet. They shall not be copied or used for the benefit of any other party or project.
Rev 0
Prepared For:
Prepared By:
No. 79911792203
DALLIN BURKE
PEDERSEN
/202508/08/2025
08/08/2025
JonathanD Callout
These calculations were prepared solely for the client and project listed on the cover sheet. They shall not be copied or used for the benefit of any other party or project.
HEADING PAGE
Calculations Index PAGE General Criteria Lateral
G-1 L-1
Calculations Index
SUU Chemistry Lab Refresh
Dallin Pedersen Snapshot
Site Data ft
Building Data ft ft ft
Soils Report
Recommendations Summary in psf
Frost Depth in
Lateral Pressures pcf pcf pcf
Coeff of Friction
Job #
Foundation Type
Structural Fill
Soil Bearing
Transient Increase
Soil Site Class
Active
At Rest
Passive
Roof Height, h
Plan Length, L
Plan Width, B
Author
Dated
IBC
Latitude
Longitude
Elevation
Risk Category
SUU Chemistry Lab Refresh
37.674703
-113.068040
II
Iron
250382
7/17/25
2766 South Main Street - SLC, Utah 84115
Phone: 801.355.5656 - Fax: 801.355.5950
DBP
Address
County
NA
NA
NA
General Information
-113
370 W 200 S
Cedar City, UT 84720
28.9
4.9
D-Default
Project: Sheet:
Job#:
Date:
By:
Snapshot
Site Mapping
SUU Chemistry Lab Refresh 250382
7/17/25
2766 South Main Street - SLC, Utah 84115
Phone: 801.355.5656 - Fax: 801.355.5950
DBP
Project: Sheet:
Job#:
Date:
By:
Existing Floor Σ = 41.4 psf
Joists/Girders 3
Ceiling 3
Roofing 2
Mech 5
Collateral 4
B Deck - 22 gage 1.9
2.5-in NW Conc 18.5
Delta Concrete 4
Dead Loads
SUU Chemistry Lab Refresh 250382
7/17/25
2766 South Main Street - SLC, Utah 84115
Phone: 801.355.5656 - Fax: 801.355.5950
DBP
Project: Sheet:
Job#:
Office Σ = 100 psf
Office Buildings - Corridors Above 1st Floor 80
Partition 20
SUU Chemistry Lab Refresh 250382
7/17/25
2766 South Main Street - SLC, Utah 84115
Phone: 801.355.5656 - Fax: 801.355.5950
DBP
Live Loads
Project: Sheet:
Job#:
Design Data deg s deg ft s
Max Period Coefficient s s s s
Seismic Force Resisting System
Response Modifiction Coefficient, R
System Overstrength Factor, Ωo
Deflection Amplification Factor, Cd
Cs 0.61 (12.8-2)
Response Spectrum Data
Spectral Response Paramaters Site Coefficients
SS g Fa
S1 g Fv
MCE Spectral Acceleration Paramaters Design Spectral Acceleration Paramaters
SMS g SDS g
SM1 g SD1 g
MCE Spectral Acceleration Design Spectral Acceleration
Sa g Sa g0.917
6.00
0.522
0.611
0.348
2.10
0.917
Ordinary Reinforced Masonry Shear Walls
2.5
1.75
0.769
0.248
1.19
0.382
Long Period Transition, TL
250382
8/5/25
D
0.02
0.75
0.365
0.511
2766 South Main Street - SLC, Utah 84115
Phone: 801.355.5656 - Fax: 801.355.5950
DBP
Seismic Loads
D
0.365
III
SUU Chemistry Lab Refresh
Seismic Design Category
2021 Period Parameter, Ct
Building Height, hn
Building Period, T
1.25
FALSESite Specific Ground Motion
1.4
Calculated Period, Ta
Max Allowed Period, Tmax
Lattitude
Longitude
IBC
Risk Category
Site Class
Importance Factor, Ie
-113.068
37.675
Period Parameter, x
0.114
0.569
T0 = 0.2 * SD1 / SDS
TS = SD1 / SDS
0.611 ρ 1.3
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
A cc e le ra ti o n
[g
Period, [s]
Maximum Considered Earthquake Response Spectrum
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0 0.5 1 1.5 2 2.5 3 3.5
A cc e le ra ti o n
[g
Period, [s]
Design Earthquake Response Spectrum
Project: Sheet:
Job#:
Rectangle
Dallin Pedersen Rectangle
Dallin Pedersen Rectangle
Dallin Pedersen Image
Dallin Pedersen Typewritten Text Project:
Dallin Pedersen Rectangle
Dallin Pedersen Typewritten Text 2766 South Main Street * Salt Lake City * Utah 84115 Phone: 801.355.5656 * Fax 801.355.5950
Dallin Pedersen Typewritten Text Sheet:
Dallin Pedersen Typewritten Text Job#:
Dallin Pedersen Typewritten Text Date:
Dallin Pedersen Typewritten Text By:
Dallin Pedersen Rectangle
Dallin Pedersen Rectangle
Dallin Pedersen Line
Dallin Pedersen Snapshot
Dallin Pedersen Snapshot
Dallin Pedersen Text Box By inspection, the chemistry lab refresh is not exerting more that 5% over current loading for existing elements to carry gravity loading.
Length Measurement 7'-4 1/2"
Dallin Pedersen Length Measurement 3'-4"
Dallin Pedersen Length Measurement 8'-3 3/4"
Dallin Pedersen Length Measurement 8'-4"
Dallin Pedersen Snapshot
Dallin Pedersen highlight
Dallin Pedersen Text Box By inspection, the chemistry lab refresh is not exerting more that 10% over current loading for existing elements to carry lateral loading. (2) 8.33' wall segments are being cut out and a 7.33' and 3.33' section are being put back over the length of a 125' long wall. The adjusted length will be 119' which is a 4.8% adjustment in shear wall capacity.
Typewritten Text L-1
Dallin Pedersen Typewritten Text 250382
Dallin Pedersen Typewritten Text 7/17/2025
Dallin Pedersen Typewritten Text
DBP
Project:
2766 South Main Street * Salt Lake City * Utah 84115 Phone: 801.355.5656 * Fax 801.355.5950
Sheet:
Job#:
Date:
By:
Dallin Pedersen Snapshot
Dallin Pedersen Typewritten Text L-2
Dallin Pedersen Typewritten Text 250382
Dallin Pedersen Typewritten Text 8/5/2025
Dallin Pedersen Typewritten Text
DBP
Dallin Pedersen Text Box Check channel size to support new openings
Opening width 8'-3" Opening height = 8' floor to floor height = 14' Gravity loading of lintel (by inspection of existing conditions indicated on drawings, third floor opening above stacks above this opening:
DL = floor 41.4 psf * (15'+9.5') plus 6' of wall 55psf * 6' = 1344.3 plf LL = 100* (15'+9.5') = 2450 plf
Ma = 32.3 k-ft
Use MC12x31
Mn/omega = 39.7 in^3*36/12/1.67 = 71.31 kip-ft
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