Re: ASCE 7-05 Wind

Bill,

I would tend to agree when you are discussing the issue of orthogonal buildings as the code no longer seems to accept a diagonal shear wall as part of a regular structure. This is going to P*ss off a lot of creative design professionals who want to do custom homes but who are used to introducing discontinuities and non-orthogonal (semi-circular) shear elements.

 

Dennis
 

Dennis S. Wish, PE
California Professional Engineer
Structural Engineering Consultant

----- Original Message ----
From: Bill Polhemus <bill@polhemus.cc>
To: seaint@seaint.org
Sent: Tuesday, November 20, 2007 7:10:31 PM
Subject: Re: ASCE 7-05 Wind

Doug Mayer wrote:

First off, what is a "regular-shaped building"?  ASCE defines this as "a building or other structure having no unusual geometrical irregularity in spatial form."  To me, this sounds like any non-rectangular structural is irregular.  Is this true?

Actually I think they mean "spatially" as in "in three-dimensions." The Sears Tower would be an example of an "irregularly shaped building," but the John Hancock Building (also in Chicago) is not even though it is non-prismatic.
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