Question on Lm in Steel beams using LRFD
Question on Lm in Steel beams using LRFD
(OP)
I have attached two pages from the Load and Resistance Factor Design Manual, Second Edition from around 98. I have a question on when Cb>1. They show two formulas for Lm. They have a condition for Lm to decide which formula to use, but I don't know how to apply to the condition unless I have plugged into an Lm formula.
RE: Question on Lm in Steel beams using LRFD