compact section, LRFD plastic stress distribution, deflection calculation
compact section, LRFD plastic stress distribution, deflection calculation
(OP)
Can someone say why we continue to use the Elastic Modulus, E, when we're doing deflection analysis with compact sections. It seems to me that with p-delta moments, especially on a beam-column, you'd have a modulus less than 29000 ksi because you'd be on the flat portion of the stress-strain curve.
Wouldn't the p-delta moments for a beam-column have deflections greater than what's predicted, and then you would also be underestimating your moment forces? The same would be true for a regular compact beam that's limited to Mp, right? I'm sure it's relatively simple, but what am I missing?






RE: compact section, LRFD plastic stress distribution, deflection calculation
RE: compact section, LRFD plastic stress distribution, deflection calculation
Thanks for the response, I just haven't come to an internal agreement on elastic modulus for the entire design process, and how this is correct.
RE: compact section, LRFD plastic stress distribution, deflection calculation
RE: compact section, LRFD plastic stress distribution, deflection calculation
BA