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SACS Analysis for tower modelled as a 2d frame and truss

SACS Analysis for tower modelled as a 2d frame and truss

SACS Analysis for tower modelled as a 2d frame and truss

(OP)
Hello all,
I am new to SACS and working on a project where I have to analyze a tower by modelling 2d truss. I have tried the model in figure by defining fixity as 202000 but I am not getting expected natural frequency. Please help me out for fixities in this figure.
thanks in advance

RE: SACS Analysis for tower modelled as a 2d frame and truss

Iam not familiar with dynamics but I will suggest you to try all joints as master (222222) except boundary joints which should be either pinned/fixed.
For extracting mode shapes all the main joints should be assigned as master.


Thanks.

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