plastic hinge

[talebian.s.e]

Hi
As I told,I use nonlinearBeamColumn element for pushover analysis and actually distributed plasticity.

now,How can I find location of the plastic hinges and their maximum rotations ?

[fmk]

as you point out, IT IS DISTRIBUTED PLATICITY .. you cannot get information about plastic hinge formations from the element .. you can only look at the sections at the integration points along the element and have a look at their deformations and forces.

[talebian.s.e]

Thanks.

[khosravifar]

I suggest using the following syntax instead of the one online:

element nonlinearBeamColumn $eleTag $nodeI $nodeJ $transfTag $intRule $SecTag $numIntPnt

And $intRule could be "Legendre", "Lobatto", etc. In this case you know exactly where the intgr points are located. Then use recorders to record moment and curvature. Examples are below:

recorder Element -file 1.out -time -ele $eleTag section $secTag force
recorder Element -file 2.out -time -ele $eleTag section $secTag deformation

Which $secTag is your intgr point. Then draw moment vs curvature for all intgr points to figure where your hinge is located.

[talebian.s.e]

Thanks.
I will try it.