Specifications (12) )64,024)5-- Pp/ Z �
7 ,3i 5, �
/ t
RECEIVED
APR 3 0 2015
CITY BUILD/NG' DIVISION
QUALITY CUSTOM DISTRIBUTION
FREEZER ADDITION
7319 SW Kable Lane, Suite 500
Tigard, OR 97224
STRUCTURAL CALCULATIONS
VLMK Project Number: 20150024
Sierra Construction Company
• 1700 SE 11''' St, Suite 120
Portland, OR 97214
s,NRUCTURq<
4\cy"-p PROFESS
Co
;6 At E
/17/15
OREGON �,
9 • /5, s-
ON C. S P`r
EXPIRES: 6/30/20 16
„Iv VLMK Prepared By: Amy Kordosky, EIT
4/17/2015
_ ENGINEERING + DESIGN
r
Structurtil Quality Custom Distributions—Freezer Addition BC i
Quality Custom Distribution
Freezer Addition
7319 SW Kable Lane, Suite 500
Tigard, OR
VLMK_JOB NO. 20150024
STRUCTURAL CALCULATIONS FOR BUILDING PERMIT
TABLE OF CONTENTS
Design Outline and Criteria DC-1 thru DC-2
Structural Calculations C-1 thru C-17
Reference Documents R-1 thru R-8
DESCRIPTION OF STRUCTURAL SYSTEM
The 'Quality Custom Distribution — Freezer Addition' project consists of the addition of a freezer and two rooftop units at
the above noted address. One unit is a condenser and the other a package unit. These units have been designed to resist
wind and seismic loads.
3933 SW Kelly Avenue Portland,OR 97239 te!.503,222.4453 b1LrrtK.i.OM G:\kitd2015\201500240140150024 DC, orix
Structured[u,alratio is:nudity Custom Distributions—Freezer Addition DC-'i
CODES
2014 Oregon Structural Specialty Code (Based on the 2012 International Building Code)
DESIGN LOADS
Live Loads
Roof Snow Load
Flat Roof Snow Load, Pf 25 psf
Dead Loads
Roof(Panelized)
Roofing (new and future) 4.0 psf
Insulation 1 .5 psf
Sheathing (5/8" plywood) 1 .8 psf
Sub-purlins (2x4 at 24") 0.7 psf
Joists 3.0 psf
Girders 1 .0 psf
Mechanical and Electrical 1 .0 psf
Miscellaneous 0.9 psf
Total Roof Load 14.0 psf
HVAC Unit Weights
Condenser Unit 3,770 lb
Package Unit 176 lb
Wind
Ultimate Design Wind Speed, V,i' 120 mph
Risk Category II
Wind Exposure B
Internal Pressure Coefficient GC1. = +/- 0. 18
Seismic
Seismic Importance Factor, I, 1 .0
Risk Category II
Mapped Spectral Response Accelerations S.. = 0.968
S 0.420
Site Class D
Spectral Response Coefficients S_ = 0.718
= 0.442
Seismic Design Category D
Analysis Procedure Used Nonstructural Component
Component Anchorage Factors ar Rr
HVAC Equip 2.5 6.0 1 .0 2.5
3933 ,WKelly Avenue Portland,OR97t3> ie:50 .111.;15i iA ?t ; jcurf21 S\wf150O24: lcq.(1 5002.4 DC.docx
Ei).4L:. eci