EFFECT OF STIFFNESS IN THE BEHAVIOUR OF FRAMED BUILDINGS IN EARTHQUAKES

Abstract

The purpose of this project work is to study the effect of stiffness in the behaviour of framed buildings in earthquakes. The lateral stiffness of a framed structure does play a significant role in defining its response to the seismic forces. As per the studies sufficient lateral stiffness is a requisite for all the structures so that they function well under minor earthquake forces and give full resistance to such forces without any structural failure. Main objective of this research work is to study the effect of the lateral stiffness on the response of a G+4 storey building [3-D frame], subjected to seismic forces. The building frame model has been analyzed by Response Spectrum method, with the help of STAAD Pro software as per IS 1893:2002. Changes in various parameters have been considered to bring a change in the stiffness of the building model and conclusions have been drawn.