Seismic Definition IBC2006

Question

Hello, 
 If user do not set parameter of CT value from ASCE 7-05 Table 12.8-2, how did STAAD.Pro V8i come up the value of parameter CT? 
 
 Figure below is the user input.

Figure below is the output result.

Please let me know it. 
 Regards, 
 Rie Tanaka

Kush · Accepted Answer

Hi Rie, 
 
CT value here is optional as the same will be picked automatically from Table 12.8 - 2. 
 
For a test you can have two structures one of concrete and the other is of steel or you can change the material. The output file will reflect the change in Value of CT.