INFLUENCE OF DIAPHRAGM ON THE SEISMIC ANALYSIS OF REGULAR AND IRREGULAR FRAME STRUCTURES

Multi - storey buildings are a special class of structures with their own peculiar characteristics and necessities. Multi - storey buildings are occupied by a massive amount of population. Therefore, their accident and devastation can have very serious consequ ences on the life and economy. Each multi - storey building means a significant investment and as such multi - storey building analysis is generally performed using more sophisticated techniques and procedure. Therefore, accepting modern ways to seismic analys is of multi - storey buildings can be very valuable to structural engineers and researchers. The intention of this study is therefore, to investigate the effect of different plan buildings with constant plan area in various seismic zones performance by com paring it with rigid diaphragm, semi - rigid diaphragm and without diaphragm including regular and irregular geometries. This study considered, comprehensive literature survey and analysis of different plan of buildings with various parameters like maximum b ending moment, shear force, maximum displ acement and storey displacement .