The OpenSees Community

Hi All, I have figured out some problems with the model and it is now running but without the staircases. As I am adding the stairs, its still giving the same error as before. I am commenting the nodes after 90 and elements after 380 to get rid of the stair cases. Can anyone help me with the procedu...

Hi,

I am still getting the same error and can not run time history analysis on the model. Can anyone go through the OpenSees script and let me know where is the problem.

A quick help will be highly appreciated.

Thanks and Regards,
Supratik

Thanks for your reply. How I can make sure that there are enough constraints or if there is any hanging nodes or badly defined elements? I have fixed all the nodes at the ground level and have released rotation at the end of the diagonal struts for the infills. Also, why am I getting same frequency ...

Hi, I am running eigen analysis a 3D Opensees model and I am getting a error saying ProfileSPDLinDirectSolver : : solve () - aii < 0(i,aii) : (1,0). Also I am extracting 6 eigen values out of which the first four shows the same values. Can anyone tell me what are the possible reasons for this error ...