How to compute total response acceleration

dynaryu · Post by **dynaryu** » Wed Nov 19, 2008 3:45 pm

I'm wondering if any of you know how to compute total response acceleration in dynamic analysis. I'd like to compute the total response acceleration in tcl script not by summing output (relative response acceleration) and ground acceleration. Is there any command to get ground acceleration value at each time step ?

Thanks.

silvia · Post by **silvia** » Wed Nov 19, 2008 6:58 pm

not unless you impose displacement history via the multiple-support excitation, then you get absolute accelerations.
hence, easier to sum input and output in tcl.