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RE: ASCE 7-05 Wind Forces

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Yes...the intent is to add an additional wind load "case" that has a 10 psf pressure on all surfaces.  Thus, you calculate wind pressures per the provisions that has different pressures for different surfaces...that is wind "case 1".  And then also check 10 psf on all surfaces as "case 2".
Adrian, MI
-----Original Message-----
From: Freeman C. Tang [mailto:ftang06(--nospam--at)]
Sent: Saturday, January 26, 2008 4:48 PM
To: seaint(--nospam--at)
Subject: Re: ASCE 7-05 Wind Forces

To my understanding this minimum 10 psf requirement is applied as a separate load case in addition to the other normal load cases.  So you don't need to use 10 psf for these zones but to compare your load cases with this minimum 10 psf. load case to get the governing loads for your design. 
Freeman Tang, SE.
Gouvis Engineering
Newport Beach, CA

ASLCSE(--nospam--at) wrote:
It is my understanding that the minimum wind force used shall be 10 psf. Is that for the overall structure?
If Zones "B" & "C" (sloped roof ) in Table 6.4, page 38 show a value less 10 psf, do I have to use the 10 psf for these zones?
Thanks for the upcoming responses
Antonio S. "Tony" Luisoni
Consulting SE
Granada Hills, CA

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