I have been designing an RHS with a base plate and gusset stiffeners. I've used master-slave command for the location of my loads and used Plate Mat Support as supports. The error was always "ERROR IN SUPPORT INPUT OR THERE IS NO SUPPORT INPUT. ANALYSIS…

Hi, I am designing a mat foundation supporting a steel structure. I am asigning the loads from the columns as NODAL LOAD. I do not think this is the right approach because I have a base plate that distributes the load from the column uniformly…