I had understood from our seminars that the definition of Exposure B
had been somewhat expanded but also better defined to make it easier to
understand. Most of our projects are in rolling hills where I tend to use
Exposure B which most of our county jurisdictions allow. Of course, when
you're on TOP of a hill those nasty topography variables kick in so Exposure
B versus C becomes more of a moot point.
Take care,
Terry Weatherby
Weatherby-Reynolds-Fritson
Jackson, CA
________________________________________
From: Bill Allen [mailto:T.W.Allen@cox.net]
Sent: Wednesday, February 20, 2008 8:52 AM
To: Seaint
Subject: Another ASCE 7-05 Wind Load Question
Is Exposure B the same as Exposure B in the 1997 UBC? It sounds like
Exposure B in ASCE 7 is applicable in typical suburban/urban areas. OTOH,
I've never been able to get UBC Exposure B to fly here without rigorous hoop
jumping.
Thanks,
T. William (Bill) Allen, S.E.
ALLEN DESIGNS
Consulting Structural Engineers
V (949) 248-8588 • F(949) 209-2509
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