Specifications AI I
-Rolm
AS ALLSTRUCTURE
Engineering LLC
16154 SW Upper Boones Ferry Rd,Portland,OR 97224
v:503.620.4314•f:503.620.4304•www.allstructure.com
MEMORANDUM
TO: FROM:
Mark Mchugh Kevin Harker
COMPANY DATE:
- 7/2/21
E-MAIL OR FAX NUMBER: TOTAL.NO.OF PAGES INCLUDING COVER:
mark@marknachugh.com 3
PHONE NUMBER: PROJECT NUMBER:
503.313.1802 21110.00
RE: PROJECT NAME:
Exposed Glulam Beam 9680 SW Riverwood Lane
COPY:
File
NOTES/COMMENTS:
Mark,
The 6-3/4 x 16-1/2 24F-V4 glulam beam supporting the floor framing above the garage has been
analyzed using the char calculation requirements found in Chapter 16 of the 2018 NDS. The beam has
been found to be adequate to withstand the 1-hour fire event per the attached calculations. Provide some
fire-proofing caulk at the transition from the gyp board to the beam. Please don't hesitate to contact me
with any questions or comments.
Regards
Approved plans
shall be on job sit?.
Kevin Harker,PE,P.Eng.
Project Engineer
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ALLSTRUCTURE BY 141 DATE
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ENGINEERING CHKBY DATE
16154 SW Upper Boones Ferry Rd. JOB NO
Portland,OR 97224-7744
o:503.620.4314 I allstructure.com SHEET OF
Allstructure Engineering Project Title:
16000 Bothell Everett Hwy,Ste 150 Engineer:
Mill Creek,WA 98012 Project ID:
Project Descr:
Printed. 2 JUL 2021, 8:18AIv
Wood Beam File:DINING ROOM.ec6
Software copyright ENERCALC,INC.1983-2020,Build:12.20.8.1'
Lic.#:KW-06007476 ALLSTRUCTURE ENGINEERING INC.
DESCRIPTION: GLB(full beam calc-no char)
CODE REFERENCES
Calculations per NDS 2018, IBC 2018,CBC 2019,ASCE 7-16
Load Combination Set:ASCE 7-16
Material Properties
Analysis Method: Allowable Stress Design Fb+ 2400 psi E:Modulus of Elasticity
Load Combination ASCE 7-16 Fb- 1850 psi Ebend-xx 1800ksi
Fe-Prll 1650 psi Eminbend-xx 950 ksi
Wood Species :DF/DF Fc-Perp 650 psi Ebend-yy 1600ksi
Wood Grade :24F-V4 Fv 265 psi Eminbend-yy 850 ksi
Ft 1100 psi Density 31.21 pcf
Beam Bracing : Beam is Fully Braced against lateral-torsional buckling
D(0.142)L(0.473)
b a a a a
6.75x16.5
Span=23.417 ft
Applied Loads Service loads entered.Load Factors will be applied for calculations
Beam self weight calculated and added to loads
Uniform Load: D=0.1420, L=0.4730, Tributary Width=1.0 ft
DESIGN SUMMARY Design OK
'Maximum Bending Stress Ratio = 0.767 1 Maximum Shear Stress Ratio = 0.336 : 1
Section used for this span 6.75x16.5 Section used for this span 6.75x16.5
fb:Actual = 1,716.44psi fv:Actual = 89.02 psi
Fb:Allowable = 2,237.12 psi Fv:Allowable = 265.00 psi
Load Combination +D+L+H Load Combination +D+L+H
Location of maximum on span = 11.709ft Location of maximum on span = 0.000 ft
Span#where maximum occurs = Span#1 Span#where maximum occurs = Span#1
Maximum Deflection
1 Max Downward Transient Deflection 0.708 in Ratio= 397>=360
Max Upward Transient Deflection 0.000 in Ratio= 0<360
Max Downward Total Deflection 0.956 in Ratio= 293>=240
Max Upward Total Deflection 0.000 in Ratio= 0<240
I
FOR OFFICE USE ONLY—SITE ADDRESS:
This form is recognized by most building departments in the Tri-County area for transmitting information.
Please complete this form when submitting information for plan review responses and revisions.
This form and the information it provides helps the review process and response to your project.
City of Tigard • COMMUNITY DEVELOPMENT DEPARTMENT
' _ " Transmittal Letter
T i c,,A it n 13125 SW Hall Blvd. • Tigard, Oregon 97223 • 503.718.2439 • www.tigard-or.gov
TO: DATE RECEIVED:
DEPT: BUILDING DIVISION RECEIVED
FROM: Mark McHugh
AUG2 2021
COMPANY: CITY OF TIGARD
PHONE: 503-313-1802 3UILDING DIM:t1N—L
EMAIL: mark@markmchugh.com
RE: 9680 SW Riverwood Lane Tigard 97224 MST2020-00323
(Site Address) (Permit Number)
Addition
(Project name or subdivision name and lot number)
ATTACHED ARE THE FOLLOWING ITEMS:_
Copies: Description: Copies: Description:
Additional set(s) of plans. 1 Revisions: Beam calculations
Cross section(s)and details. Wall bracing and/or lateral analysis.
Floor/roof framing. Basement and retaining walls.
1 Beam calculations. Engineer's calculations.
Other(explain):
REMARKS: Attached is the engineers plans showing that the wood beam in the garage meets the required fire rating.
14
FO O FILE USE ONLY
Routed to Permit Tech ' ian: Date: ?j -2.( Initials: A
Fees Due: El Yes No Fee Desc ptio : Amount Due:
N) rb ci ss g.
Special
Instructions:
Reprint Permit(per PE): ❑ Yes No Done
Applicant Notified: Date: (pip, Initials: 471—,,
t'MA) t