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Hi All, I do have a Truss Bridge with a concrete deck. I've modeled the deck as shell, then the stringers and floor beams are all fiber sections. This model without Truss itself works perfect and I do get the same modal analysis results with CSI. Then, the problem starts with adding the Truss member...

Hello All, I do have a problem with choosing proper element and modeling approach in a bridge model where I connect the girders to each other and to a parapet. think about that a single-span bridge has two parapets on each side and girders needs to be connected to each other and side girders should ...

I did that example and it worked, then, I went though my code again and found my mistake while defining the coordinates op.('quad',...), thank you for the help.

Unfortunately, it didn't solve the issue, still there is nothing being outputted.

Hello, Here is the model code for simply-supported Double Tee girder. Before I move forward to full bridge model, I'd like to verify some fundamental things such as eigenvalues, strain-stress and support reactions etc. This is an elastic analysis, that's why I chose to go with elastic uniaxial mater...