What seimic R Value per the IBC 2000 should be used for a steel framed school auditorium with metal deck, steel spandrels and steel columns for vertical load only, but braced laterally by CMU infill masonry. Should the masonry be rigidly placed against the steel columns are flexibly anchored?
What seismic R value should one use for a gym building with metal deck, steel spandrels and steel columns for vertical roof loads but using concrete masonry and brick veneer infill walls for lateral stability. Should the cmu walls be rigidly connected to the steel columns or just anchored?
Does any one know where the Marble Institute of America derived its criteria for floor stiffness of L/720 for total loads and a maximum deflection not to exceed 7/32 inch for stone tiles. The tiles are 18" x 18" x 1/2" placed on a concrete mud set 1.5 to 2 inches thick and is...
