Seismic Analysis of Multistory Buildings Using ETABS-A Review
Keywords:
Seismic analysis, Earthquake Resistant Design, Re-entrant corners, Shear wall, Geometric irregularity.Abstract
India is prone to strong earthquake shaking, and hence earthquake resistant design is essential. The
Engineers do not attempt to make earthquake proof buildings that will not get damaged even during the rare but strong
earthquake. Such buildings will be too robust and also too expensive. Practically no building can be made earthquake
proof. The engineering intention is to make buildings earthquake resistant, such buildings resist the effects of ground
shaking, although they may get damaged severely but would not collapse during the strong earthquake. Thus, the safety
of people and contents is assured in earthquake resistant design of buildings and thereby a disaster is avoided. This is a
major objective of seismic design codes throughout the world in recent times. The sixth revision of IS 1893 (Part 1):
2016, "Criteria For Earthquake Resistant Design Of Structures" have been published by Bureau of Indian Standards
recently in December 2016. In this new code many changes have been included considering standards and practices
prevailing in different countries and in India.
Extended Three-dimensional Analysis of Building Systems – ―ETABS 16.2‖ is a special purpose computer program
developed specifically for building systems .The main objective of this study is to review seismic analysis of multi story
buildings by various researchers using ETABS as per the provisions of IS 1893 (Part 1): 2016. The various parameters
considered in analysis by researchers are Geometric irregularity, mass irregularity, re-entrant corners, different
locations of shear walls, different building shapes, masonry infill walls, etc.