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Re: SPAMLOW: IBC 2003 Seismic
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 Subject: Re: SPAMLOW: IBC 2003 Seismic
 From: "Dr Masroor" <masroor(nospamat)eaworld.com>
 Date: Sat, 11 Mar 2006 09:51:15 +0500
Title: IBC 2003 Seismic
The vertical load effects are vector added to
horizontal loads. In other words, you not only apply a horizontal force, you
also apply a vertical force at the same time to account for Earth Quake vertical
component.
This can be implemented simply by modifying
your load combinations, so that instead of D+E as you would normally do, you end
up doing something like 0.94D+E and 1.4D+E gets replaced by 1.46D+E
HTH
Syed Masroor

 References:
 IBC 2003 Seismic
 From: Larsen, Trevor
 IBC 2003 Seismic
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