George,
I have never had to, am away from my desk, and would rather not aswer
a question with a question, or be overly general, but I would like to
know the extent of your problem-- how many "risers" (vertical pipes)
do you have to brace? I have to admit I think there is some confusion
on what a 4-way brace is, since some manufacturer's details call (2)
2-way brace AT THE SAME LOCATION a 4-way. The Forum please correct me
if need be, but I think a 4-way is only for vertical pipes, and if so,
your task might be lessened, once someone with some experience replies.
Quoting Steve Leyton <[email protected]>:
CA - where else?
Steve
Bruce Verhei <[email protected]> wrote:
George
Which State?
Bv
Sent from my Motorola ATRIXÂ 4G on AT&T
-----Original message-----
From: George Medina Jr <[email protected]>
To: [email protected]
Sent: Sun, Sep 16, 2012 22:20:50 GMT+00:00
Subject: 4-WAY BRACING INCLUDING PRYING ACTION ON FASTNERS PER OSHPD'S
OPA#601
Has anyone had to provide prying action factors to seismic calculations
for the Department of State Architecture. I have been requested by DSA
to:'Provide calculations showing 4 way brace connections to take ZOE loads
per NFPA 13 Sec. 9.3.5.5.3 and include prying action on fasteners per OPA
0601 p. 5.4' . I have attached the sheet from the document and have to be
totally honest that I have never had to provide this before. I use
AFCON's Bracing Calculation Program and would like to know if I am going
to have to end up doing the calculation by hand to add the prying factor.
If someone can briefly explain how the prying factor works I would be
indebted to thee for the rest of my short natural life.
I could send a copy of Sheet 5.4 of the OPA #601 to anyone that can help.
Thank You,
George Medina Jr.
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