Question about pushover

[mugekuleli]

Hi all,

I have a backwall-embankment system (3D) where soil is surrounded by a steel box. The backwall behavior mode is shear. I want to perform a pushover analysis. The maximum horizontal displacement (X) is 0.15m. Since the behavior mode is shear I need to apply the displacement to all wall nodes in X direction. This means I need to control all wall nodes. So I used sp command to define the load. However, the recorded displacements at the nodes where I applied the displacements are not matching. What may cause this problem?

Thanks in advance!

[vesna]

What boundary conditions do you have at nodes where you define "sp" command?

[mugekuleli]

Thank you for the reply. I solved my problem by using equalDOF at the nodes where I want same displacement and defining the load with "load" command.