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looks to me like you haven't defined any masses and applied gravity loading

Something else you can try is using tcl's procs. It would look something like: proc MyAnalysis{ Groundmotion } { #put the entirety of your current code inside this procedure } Then assuming your ground motion files are sequentially numbered in a way such as groundmotion1.acc, groundmotion2.acc, grou...

Thanks selimgunay for your insight. I wanted to ask - is it common practice to include an adaptive integration strategy for time history analyses? I am unsure whether there is a *perfect* set of algorithm, test, tolerances, etc which will run and produce results from the first try or if convergence ...

Hello all, I have modeled a simple reinforced concrete column that is subjected to a set of groundmotions, and had some questions. I chose to use forcebeamcolumn elements along with fiber sections using concrete07 and reinforcingsteel materials as you can see in my attached code. Before I moved to d...