topic Re: Connection of Steel beam to shear wall in Robot Structural Analysis Forum

Connection of Steel beam to shear wall

rameez.iqbal — Wed, 21 Sep 2016 09:05:32 GMT

Hi,

I have modeled a steel building in Robot where steel beams are connected to shear walls. The shear forces from the shear walls are being transferred to the steel beams, which I do not expect to be.

The issue is arising from beams 44, 193 and 105. I am attaching the model for your review.

Thank You,

Rameez.

Re: Connection of Steel beam to shear wall

rameez.iqbal — Wed, 21 Sep 2016 09:07:27 GMT

Attaching screen shots as well.

Re: Connection of Steel beam to shear wall

Rafal.Gaweda — Thu, 22 Sep 2016 07:49:03 GMT

Are you referring to such peak values caused by model inaccuracies?

Re: Connection of Steel beam to shear wall

rameez.iqbal — Thu, 22 Sep 2016 08:07:36 GMT

Yes...I think that was the problem here... Thanks for your reply.

Another issue in the model is that there is Type 3 Instability warning...and it seem to change the node every time I re run the analysis... In some of the discussions in your forum I had seen that this type 3 warning can be ignored.. Can I ignore it in my model as I have thoroughly checked as to why this warning is occurring but could not come up with the answer.

Thanks again for your response.

Re: Connection of Steel beam to shear wall

Rafal.Gaweda — Thu, 22 Sep 2016 09:41:56 GMT

In this case in this model it is mathematical instability - ignore it

Re: Connection of Steel beam to shear wall

rameez.iqbal — Thu, 22 Sep 2016 09:50:59 GMT

Thank You.