Hi every one.(adsbygoogle = window.adsbygoogle || []).push({});

I just wonder whether using Ix+Iy = J is a suitable method to calculate the Torsion Constant of a plate girders (full penetration butt weld at connection section)

Since, as stated at wiki, the polar moment of inertia is only identical to J for circle tube and rod.

p.s. is there any software/calculation method that i can obtain the J and Ixx,Iyy immediately.

Thanks for your kind help in advence.

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# Method to obtain Torsion Constant (structural)

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