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Dear Engineers, I have modelled separately two different floors on ETABS and in between is a secondary beam connected to primary beams at the ends. When I pin the secondary beams and do analysis and design,the floors seem to ignore the secondary beams by acting as a single span resulting into longer span with increased deflection and higher reinforcements required.I have attached a file showing this. When I make the joints of the secondary beams fixed,the floors now act as expected;as two separate spans thus giving correct deflection and reinforcement results. I want to keep the pinned secondary beams but again I want the floors to behave normally(maintain separate spans).How do I fix this issue? Kind Regards, Kel
