I have model SDOF secondary structure in SAP 2000 but couldn't do base isolation on it properly. Please see picture given below and suggest me how can I do it ? on this photo yellow colour structure is secondary structure and red one is primary.
Bharat, point taken. Are you trying to investigate the base isolation of 'say, equipment, or storage rack' within a floor of a building? Attached is a paper that should be of your interest.
Mr. Chalise I am surprised if you are not able to model such easy ... I can suggest you to read the thesis work which are done under gaidance Dr. Vasant Matsagar. You need to understan the degrees of freedom (DOF) to be able to model them in SAP2000.