3D bracing modeling

[sama]

Dear Vesna,
I have modeled a 3D bracing structure, and I got the foloowing warrning,

ForceBeamColumn3d::ForceBeamColumn3d-- no torsion detected in sections continuing with element torsional stiffness GJ/L=1e010,

what does it mean? and how should I solve it?

also it must be metioned that I have defined section aggregator as folows,
set G 7842000000
BOXsection 10 1 0.450 0.45 0.0190 0.019 12 4 12 4
set J 0.001521
set GJ [expr $G*$J ]
uniaxialMaterial Elastic 10 $GJ; # Define torsional stiffness

section Aggregator 1 10 T -section 10; # attach torsion and flexure

I havent assigne section aggregator for beams and bracings? does it occur because of that?
tanx in advance

[vesna]

I answered this question in your previous post.