I am creating a lumped mass model in staad.my cut off mode shape is 9.but when i perform analysis it only gives me 2 mode shape results.sir plz help me out and tell me how to get other mode shape also.my model has 9 node which are the position of lumping with joint load acting on it in the direction of X.please find the attachment....
[View:/cfs-file/__key/communityserver-discussions-components-files/5932/Lumped-Model.rar:940:0]