Thank you JoshPlumSE for your response.
Can you tell me how to find the impact force using gap element? Is there any option in SAP to see the impact value?
It would be great to hear from you.
I am trying to study seismic pounding between two adjacent RC buildings with a gap element. However, i am confused about the non linear stiffness value that i should be taking for the gap element. I am using SAP 2000.v.20. Can anyone help me out?