Specifications Structural Calculations:BUTCHER RESIDENCE RESTROOM ADDITION—Gravity Design DC-1
Project: BUTCHER RESIDENCE RESTROOM Project Number: 20220045
• ADDITION
Project Address: 15412 SW Greenfield Dr. Document: Structural Calculations for
Tigard, OR 97224 Building Permit
TABLE OF CONTENTS
Design Outline and Criteria DC-1 thru DC-2
Calculations C-1 thru C-3
Framing Plans (Drawn on Orig Plans) S-1 thru S-9
DESCRIPTION OF STRUCTURAL SYSTEM
This 'BUTCHER RESIDENCE RESTROOM ADDITION' project consists of new restroom addition located at
15412 SW Greenfield Dr., Tigard, OR 97224. The new restroom will be framed within the existing
structure's envelope. Modifications to the existing prefabricated trusses will be necessary as outlined in
the following calculations and drawings. Impacts to the existing lateral system are negligible.
***LIMITATIONS***
VLMK Engineering + Design was retained in a limited capacity for this project. No responsibility and/or
liability is assumed by, nor is any to be assigned to, VLMK Engineering + Design for items beyond that
shown in this Structural Calculation Package.
G Acad2022\20220045\Calcs\20220045 Butcher DC.docx
Structural Calculations:BUTCHER RESIDENCE RESTROOM ADDITION—Gravity Design DC-2
CODES
2019 Oregon Structural Specialty Code (Based on the 2018 International Building Code)
DESIGN LOADS
Live Loads
Minimum Snow 25 psf
Live Load 40 psf
Dead Loads
Roof/Floor(Light-Framed Timber)
Materials 12 psf
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3933 S Kelly Avenue Portland,OR 97239 tel:503.222.4453 fax:503.248.9263 www.vlmk.com
Title Block Line 1 Project Title: BUTCHER RESIDENCE Q,....°2_ A
You can change this area Engineer: JCS
using the"Settings"menu item Project ID: 20220045
and then using the"Printing& Project Descr:BATHROOM ADDITION
Title Block"selection.
Title Block Line 6 Printed:30 MAR 2022:11:21AM
File 2D220045 Calcs.ec6
Wood Beata SoftwarecopyrIghtENERCAL.C,INC::1983-2020,Buikl:12,20.5.31 '
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DESCRIPTION: TRUSS/FLOOR SUPPORT MEMBER
CODE REFERENCES
Calculations per NOS 2018, IBC 2018,CSC 2019,ASCE 7-16
Load Combination Set:ASCE 7-10
Material Properties
Analysis Method: Allowable Stress Design Fb+ 2325 psi E:Modulus of Elasticity
Load Combination ASCE 7-10 Fb- 2325 psi Ebend-xx 1550ksi
. Fc-Prll 2050 psi Eminbend-xx 787,815 ksi
Wood Species : iLevel Truss Joist Fc-Perp 800 psi
Wood Grade : TimberStrand LSL 1.55E Fv 310 psi
Ft 1070 psi Density 45.01 pcf
Beam Bracing : Beam is Fully Braced against lateral-torsional buckling
D(0.126)S(0 024)L(0.08)
••
D(0.024)S(0.05) I o e
o o e
44
1.75x11.875
Span=19.50 ft
Applied Loads Service loads entered. Load Factors will be applied for calculations.
Load for Span Number 1 •
Uniform Load: D=0.0240, S=0.050 klft,Extent=0.0-->>15.750 ft, Tributary Width=1.0 ft,(ROOF DL+SL)
Uniform Load: D=0.0240, L=0.080 kilt,Extent=15.750->>19.50 ft, Tributary Width=1.0 ft,(FLOOR DL+LL)
Point Load: D=0.126D, S=0.2620 k @ 15.750 ft,(ROOF DL+LL)
DESIGN SUMMARY 3 sign OKAYS
Maximum Bending Stress Ratio = 0.446: 1 Maximum Shear Stress Ratio = 0.174 : 1
Section used for this span 1.75x11.875 Section used for this span 1.75x11.875
= 1,193.49 psi = 61.98 psi
•
= 2,673.75 psi = 356.50 psi
Load Combination +D+S Load Combination +D+0,750L+0.750S
Location of maximum on span = 10.533ft Location of maximum on span = 18.575 ft
Span#where maximum occurs = Span#1 Span#where maximum occurs - Span#1
Maximum Deflection •
Max Downward Transient Deflection 0.497 in Ratio= 470>=360 •
Max Upward Transient Deflection 0.000 in Ratio= 0<360
Max Downward Total Deflection 0.753 in Ratio= 310>=180
Max Upward Total Deflection 0,000 in Ratio= 0<180
Maximum Forces&Stresses for Load Combinations
Load Combination Max Stress Ratios Moment Values Shear Values
Segment Length Span# M V Cd C EN C i Cr Cm C t C L M fb F'b V fv F'v
D Only 0.00 0.00 0.00 0,00
Length=19.50 ft 1 0.194 0.081 0.90 1.000 1.00 1.00 1.00 1.00 1.00 1,39 405.32 2092,50 0.31 22.63 279,00
+D+L 1.000 1,00 1.00 1,00 1,00 1.00 0.00 0,00 0.00 0.00
Length=19,50 ft 1 0.215 0.119 1.00 1,000 1.00 1.00 1.00 1.00 1,00 1.72 500.94 2325.00 0.51 36.86 310.00
+0+5 1,000 1.00 1.00 1.00 1.00 1.00 0.00 0.00 0.00 0.00
Length=19.50 ft 1 0.446 0.171 1.15 1,000 1.00 1.00 1.00 1,00 1.00 4,09 1,193.49 2673.75 0.84 60.86 356.50
+D+0.750L 1.000 1.00 1.00 1.00 1.00 1.00 0.00 0,00 0.00 0.00
Length=19,50 ft 1 0,164 0.086 1.25 1.000 1.00 1.00 1.00 1.00 1.00 1.63 476.08 2906.25 0.46 33.31 387,50
+D+0.750L+0.7505 1.000 1.00 1.00 1.00 1,00 1.00 0.00 0,00 0.00 0,00
Length=19.50 ft 1 0.398 0.174 1,15 1,000 1,00 1.00 1.00 1.00 1,00 3.65 1,064.04 2673,75 0.86 61.98 356.50
+0,60D 1.000 1.00 1.00 1.00 1.00 1,00 0,00 0.00 0.00 0.00
•
Title Block Line 1 Project Title: BUTCHER RESIDENCE
You can change this area Engineer: JCS
using the"Settings"menu item Project ID: 20220045
and then using the"Printing& Project Descr:BATHROOM ADDITION
Title Block"selection.
Title Block Line 6 Printed:30 MAR 2022,11:21AM
" '. 'File 20220045 Ca1cs�c,6
Wood"Beani SoBware copyright ENERCALC,INC,1983 2020,Built.12:20.5,31
�F
DESCRIPTION: TRUSS/FLOOR SUPPORT MEMBER
Load Combination Max Stress Ratios Moment Values Shear Values
Segment Length Span# M V Cd C FN C i C r Cm C t C L M fb F'b V fv F'v
Length=19.50 ft 1 0.065 0.027 1.60 1.000 1.00 1.00 1.00 1.00 1.00 0.83 243.19 3720.00 0.19 13.58 496.00
Overall Maximum Deflections
Load Combination Span Max.a-"Deft Location in Span Load Combination Max."+"Dell Location in Span
+D+S 1 0.7535 9.964 0.0000 0.000
Vertical Reactions Support notation:Far left is#1 Values in KIPS
Load Combination Support 1 Support 2
Overall MAXimum 0.778 0.936
Overall MiNimum 0.520 0.530
D Only 0.258 0.336
+D+L 0.287 0.607
+D+S 0.778 0.865
+D+0.750L 0.280 0.539
+D+0.750L+0.750S 0.670 0.936
+0.60D 0.155 0.201
L Only 0.029 0.271
S Only 0.520 0.530
Insulation:
Provide following for the bath addition in existing attic at following address
15412 SW Greenfield St Tigard OR 97224
Base �Q�r I(Y�Q•./C671(\VIA-1 6 &
BATH ADDITION BUILT-IN ATTIC
Work Area Tien'
Floor Over Gauge 1M R•30 UNF 24"X4S"
Exterior Walls 1MR-21 RI{P I2 X93"
Baffles.Vent Chutes BAFFLE 60"IRE ATED CARDBRD
Ceiling Area rolled 1\IR-30 BHP 23.625"X4S"
Ceiling Area\niIted POLY FILM.4\I4 r100'CLR
Ceiling,Area Flat 2 layers=R-49 1M R•25 UNF 24"Y96"
Air Seal Penetrations FOAM CFS12 WR3DOW&DOOR