Effect of Corner Modifications on Wind-Induced Responses of Tall Buildings

Shankar H. Sanni*, Prabhu Gurunathappa Sheelvantar**
* Department of Civil Engineering, Basaveshwar Engineering College, Bagalkot, Karnataka, India.
** Manipal Institute of Technology, MAHE, Manipal, Karnataka, India.
Periodicity:December - February'2022
DOI : https://doi.org/10.26634/jste.10.4.18408

Abstract

Any tall building subjected to high-speed winds will tilt and crack unless precautionary measures are taken. Various active and passive control methods are proposed to control the wind induced responses of the tall buildings. These tall structures can be made aerodynamic by modifying the external geometry of the building. In the present study, minor geometrical modifications are rendered to the structures. G+30 storeys are considered for each model with constant plan layout. The location of the building is considered to be Bengaluru and corresponding wind load data is considered. Modeling and analysis is carried out using ETABS 2017 software. Wind load analysis is carried out to know the effect of these aerodynamic modifications. The parameters considered for the comparison are storey displacement, natural time period and overturning moment. On comparative analysis, it was observed that wind-induced responses of these geometrically modified buildings have reduced by 5% to 10%. It can also be concluded that minor modifications have shown significantly better performance than a conventional square-plan building in addition to an innovative architectural look.

Keywords

Geometrical Modification, Aerodynamic Modification, Corner Recession, Corner Chamfering, Storey Displacement, Natural Time Period, Overturning Moment.

How to Cite this Article?

Sanni, S. H., and Sheelvantar, P. G. (2022). Effect of Corner Modifications on Wind-Induced Responses of Tall Buildings. i-manager’s Journal on Structural Engineering, 10(4), 44-53. https://doi.org/10.26634/jste.10.4.18408

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