INFLUENCE OF FLOOR DIAPHRAGM BUILDING WHILE CONSIDERING SEISMIC FORCES

In this work, seismic analysis of multi storey RC building frames have been carried out considering different types of floor diaphragm. Floor diaphragm are very efficient in resisting lateral forces. STAAD.Pro software has been used for analysis purpose. Analyses of multi storey RC building frames are carried out in 3 parts I) Building frame without floor diaphragm, II) Building frames with semi rigid fl oor diaphragm III) Building frames with rigid floor diaphragm. Results are collected in terms of maximum moments in beams, axial force, shear force, maximum displacement and storey displacement which are critically analysed to quantify the effects of vario us parameters. This approach focuses various floor diaphram in a structure and their effectiveness in reducing the lateral displacement ultimately to achieve economy in construction with similar structural frames .