HomeMy WebLinkAboutTrusses 04.21.20204/21/2020 Sweeney Development Mail - Buffalo Valley roof loading issues
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DEVELOPMENT
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Frank Howard <frank@sweeneyaspen.com>
Buffalo Valley roof loading issues
1 message
Aron Selby <Aron.Selby@katerra.com> Tue, Apr 21, 2020 at 11:25 AM
To: Frank Howard <frank@sweeneyaspen.com>
Cc: Laura Miller <laura.miller@katerra.com>, Wesley Moore
<Wesley.Moore@katerra.com>, Michael Kilian <Michael.Kilian@katerra.com>
To Whom it May Concern,
Buffalo Valley roof trusses were originally submitted and built with a 40
PFS ground snow load when it should have been built and submitted with
a 40 PSF roof snow Toad. These trusses where built off truss engineering
package 13378-R1 with sheets R61617258 through R61617290.
The truss engineering was changed to the correct loading of 40 PSF roof
snow load while reducing the top chord dead Toad to 10 PSF, the top
chord dead load was reduced in accordance to reduced dead load
provided by EOR, Evolve Structural Design. These trusses are included
in truss engineering package 13378-R1 with sheets R61670370 through
R61670402.
With these load changes some of the trusses remained unchanged while
others change in plate size and lumber grades. The trusses that failed
with the changed loading received field repair engineering while the rest
reminded unchanged and do not need repairs.
Please do not hesitate to contact me with any questions you may have.
https://mail.google.com/mail/u/1 ?ik=b777241803&view=pt&search=all&permthid=thread-f%3A1664603828574220823&simpl=msg-f%3A16646038285... 1/2
4/21/2020 Sweeney Development Mail - Buffalo Valley roof loading issues
Thank you,
Aron Selby
Senior Floor and Roof Truss Designer
Component Design
KATERRA
624 North 44th Ave.
Phoenix, AZ 85043
C: +1 209-648-2798
katerra.com
https://mail.google.com/mail/u/1 ?ik=b777241803&view=pt&search=all&permthid=thread-f%3A1664603828574220823&simpl=msg-f%3A16646038285... 2/2
TRUSSES ALWAYS LABELLED BOTTOM LEFT END OF TRUSS, TRUSS LEFT END INDICATED ON LAYOUT
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DATE: 9/5/19 REV 1
SCALE NTS SALES REP
Dave Graham
FILE # :
CI 11'N
BUFF VALLEY, INC_
JOB NAME:
BUFFALO VALLEY APTS
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DO NOT SCALE DRAWINGS:
ANY ON -SITE ALTERATIONS OF TRUSSES, OR DEVIATIONS FROM
THE LAYOUT WILL BE DEEMED THE SOLE RESPONSIBILITY OF THE
CONTRACTOR AND FRAMER. Katerra WILL ASSUME NO
RESPONSIBILITY FOR ANY SUCH MODIFICATIONS.
NOTE: ROOF TRUSSES ARE NOT DESIGNED FOR THE
ATTACHMENT OF PERMANENT FALL PROTECTION ANCHORS.
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HATCH INDICATES 60 PSF SNOW LOAD
VALLEY TRUSSES LESS THAN 12'-0" SPAN F.O.S.
THIS DESIGN AND CONSTRUCTION PRINT IS THE
PROPERTY OF Katerra AND SHALL NOT BE COPIED
WITHOUT WRITTEN PERMISSION.
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INDICATES LEFT END
ON TRUSS DRAWINGS
ROOF TRU55 5PECI%ICArION5
BLDNG CODE: IBC2015
TC LUDL:
40/14
TYPE:RES
ROOF TILE
FINISH:
OVERHANG:
18"
DROPPED NO
GABLE:
REVISIONS / NOTES
ROOF
PITCH:
'O.D.
HEEL:
BC LUDL:
SPACING: 2'
8/12 & 4/12
2X4
0/7
GABLE
SHEETED: NO
111,1 KATERRA
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