RE: Why 0.2 and 1 sec for Ss and S1?

Reference the FEMA 450-2, Section 3.3
http://www.bssconline.org/NEHRP2003/comments/C3.pdf

Regards,
Harold Sprague

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From: kimwontae@email.com
To: seaint@seaint.org
Date: Wed, 5 Dec 2007 08:02:11 -0500
Subject: Why 0.2 and 1 sec for Ss and S1?

 

Hi,

 

I am wondering why 0.2 sec and 1 sec were chosen for

 spectral response accelorations at short- and long-period .

Is it because these two periods can represent the seismic conditions of most buildings very well?

 

 

 

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