Re: STEEL BEAM AND LEVER FAULT PROBLEM Hello; For the number of MOds, if you choose Ritz among the methods in the structure tree, analysis, modal analysis, modal title, fewer modes will be sufficient. Do the increment as 25 or 50 mods. For lovers, make sure it is divided at all intersections. Obviously, it doesn't look too high because your coating loads are too high. If you are looking at the model I sent, I removed the purlins from the analysis because in this way the purlins are designed again and give more suitable results, because they are designed only with the coating loads on them. Otherwise, axial force occurs in purlins in proportion to their rigidity and PMM problems occur.