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Rise in urbanization and due to scarcity in space available on the horizontal ground, there is a need for vertical expansion of cities. For which the high rise constructions are needed. Behaviour of the tall buildings subjected to wind loads along with vertical gravity loads is very much essential due to their vulnerability. This paper tries to explore the shape effect of buildings against the wind load using design software E-TABS. Different wind load patterns are ventured on various shapes of building viz. Square, Circular and Octagonal on direction basis to determine the response of buildings. Buildings of heights G+20 and G+40 are subjected to varying wind speeds of 33 m/s, 44 m/s and 50 m/s to determine the response of the building with varying shapes. The study focuses on maximum bending moment in columns, maximum roof displacement and storey drift. Shapes play an important role in resisting the wind loads and circular shaped building is found to perform the best.
Tall Building, Wind Load, E-TABS, Roof Displacement, Inter Storey Drift, Bending Moment.