Comparative Study on Tall Structures with Different Aerodynamic Modification Subjected to Wind Load Using ETABS

Abstract

High rise Structures are in demand due to scarcity of land in urban areas, economic growth, technological advancement, etc. Wind effect is very important for high rise structures and provides significant contribution to overall loading and serviceability. But as we go higher wind excitation becomes one of the most precarious force acting on the surface of the structure. So modifications to the structural geometry is on of the best idea to reduce the wind impact. In this paper different aerodynamic modification are applied to the G+40 square structure. Minor modification like round corner, recessed corner and major modification like setback, tapered were considered. Wind analysis for these models were done in ETABS software and the obtained results were compared with basic square model. Then the model having less impact for wind is concluded as the best modified structure