Hello,
I have a few questions regarding column slenderness. In my model (v15.0) I am having a few slenderness issues and am trying to resolve them. It appears that the ACI 318 code has changed since 05 in terms of the kl/r limit, which I have found is what RAM enforces, so here are my questions.
1. RAM only flags columns as "failing" in slenderness if the ratio is above 100. Since it appears that this limit is no longer applicable in ACI 318-11, how can I ensure that my column design is per code since this is an old limit?
2. With ACI 318-11, moment magnification is the procedure to account for slenderness effects. Does RAM perform moment magnification? (per 10.10.6 and 10.10.7) If not, would I have to do calculations by hand and/or through another program to check column validity?
Thank you,
Beth