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RE: Seismic questions

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Q: what is the value Ct if I used 2.Building frame system  - 4a.steel? 
A: Ct of 0.035 for frames
 
Q: what is the value Ct if I used 1.Bearing Wall System - 2.Shear Walls - Concrete
A: Ct = 0.020 for shearwalls
 
Method B or a dynamic analysis will provide a better answer for T that is independent of Ct.
 
 

Nicholas Blackburn, PE 

-----Original Message-----
From: ken kirkland [mailto:kenmail234(--nospam--at)yahoo.com]
Sent: Wednesday, May 30, 2001 4:34 PM
To: seaint(--nospam--at)seaint.org
Subject: Seismic questions

 I have five story building.  The base shear design, the value Ct = 0.35 for Steel OMRF.

For the same building, what is the value Ct if I used 2.Building frame system  - 4a.steel?

and what is the value Ct if I used 1.Bearing Wall System - 2.Shear Walls - Concrete?

Thanks in advance