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Using spColumn for Cm = 1.0

Thread starter steellion
Start date Apr 4, 2013

Status: Not open for further replies.

Apr 4, 2013

steellion

Structural

I am attempting to use spColumn to design a two-story column in a sway frame with a transverse load in the middle. ACI 318 10.12.3.1 requires Cm = 1.0 for members with transverse loads between supports. It appears that spColumn calculates Cm automatically, and I haven't found any way to change this. Is there any way to assign a Cm for this program, or "trick" the program into using Cm = 1.0? I am considering multiplying the input design moment by 1/Cm to magnify the moment.