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Hi everyone! I would like to know if there is a way to place a UniformExcitation located at a different elevation than the ground, I tried to place it in a node by means of: timeSeries Trig 3 0.01 65.59 3.28 -factor 0.0015 -shift 0.0 pattern MultipleSupport 1 { groundMotion 101 Series -accel 3 impos...

Hi everyone! I'm dealing with a steel structure model in 3d, all the sections are circular fibers, the mass, and the loads are along the elements (Also I tried with nodal options). I ran the static analysis and all my Forces ar correct, but my moments in X are wird (in nodes 1 and 2 are low and in n...

Hi!,

I've just realize what's hapenning, in opensees is necessary to add an extra node to create de xbrace, I share this if is useful for someone.

Hi everyone!, I have been doing some calibrations with a 3D frame with one and two diagonals where all the elements share the same characteristics, I have gotten the reactions in 3 models, the first and the second have only one diagonal and the reactions are pretty simmilar to etabs, but when I put ...

mhscott wrote: ↑Sun Jul 30, 2023 6:49 am Mass and weight are separate inputs in OpenSees: https://portwooddigital.com/2020/11/20/mass-and-weight/

Hey thanks for your advice, the web page that yor shared clears my daubt, thak you again

Hello, I'm starting with OpenSees. I'm trying to perform an analysis of a simple 3D frame with fiber properties. I have used the "element dispBeamColumn" command with the "-mass" option to avoid placing the mass at the nodes. When I perform the dynamic analysis, OpenSees gives me...