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Published in:
2020 | OriginalPaper | Chapter
10. Effect of Aerodynamic Modifications on a Tall Building with Horizontal Irregularity
Authors : Shanku Mandal, Sujit Kumar Dalui, Soumya Bhattacharjya
Published in: Advances in Structures, Systems and Materials
Publisher: Springer Singapore
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Abstract
Impact of wind force is more critical on tall buildings with an increase in height. Horizontal irregularity on plan shape and randomness of wind makes the structure more vulnerable. A detail analytical study has been done considering various wind incidence angle ranging from 0° to 90° at an interval of 30° using computational fluid dynamics (CFD) on U-plan shaped tall building with corner modifications. The present study has shown that the introduction of minor aerodynamic modifications has major a role in minimizing the wind-induced responses. Drag coefficient and the lift coefficient are reduced due to the application of corner chamfered and corner roundness on the basic model. Most of the cases both maximum pressure and suction occur on the different faces of corner chamfered models. It is also noted that the modified corner exerts more pressure than the basic model.