Effect of Brick, Infill and Shear Wall Stiffness in Design of RC Framed Irregular Buildings

Abstract

Earthquakes are considered one of the most devastating natural disasters, causing immense loss of life and livelihood. Passed research works based on experimental and analytical investigations show that the contribution of infill and shear walls to increasing the strength and stiffness of RC-framed regular and irregular buildings cannot be underestimated. An irregular structure is one that lacks symmetry and discontinuity in geometry, mass, or load resisting elements. This project work is concerned with analysing the behaviour of G + 10 storey regular and mass irregular buildings with shear and infill walls. The ETABS software is used for the analysis, which considers equivalent lateral force for regular mass and response spectrum method for irregular mass. Brick infill walls were modelled using the equivalent strut approach. Parameters such as time period and storey displacement are calculated, and graphs are plotted to show the results. The results show that adding shear walls and infill walls to the bare frame reduces the time period and storey displacement, and that regular structures perform better in terms of seismic performance than mass irregular structures.