Wind and Structures

Techno-Press (테크노프레스)
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Aerodynamic modification of setback distance at half height of the tall building to minimize the wind effect

  • Bairagi, Amlan Kumar (Department of Civil Engineering, Indian Institute of Engineering Science and Technology) ;
  • Dalui, Sujit Kumar (Department of Civil Engineering, Indian Institute of Engineering Science and Technology)
  • Received : 2022.01.14
  • Accepted : 2022.10.05
  • Published : 2022.09.25
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Abstract

The present study focuses on aerodynamic parameters behaviors and control on the single and double side setback building models at the buildings mid-height. The study is conducted by computational fluid dynamics (CFD) simulation. This study estimates the face wise pressure coefficient on single side setback buildings with a setback range of 20%-50% and double side setback buildings with setbacks ranging from 10%-25%. The polynomial fitted graphs from CFD data predict the Cp on different setback model faces within permissible limit ±13% error. The efficient model obtained according to the minimum drag, lift, and moment consideration for along and across wind conditions. The study guides the building tributary area doesn't control the drag, lift, and moment on setback type buildings. The setback distance takes a crucial role in that. The 20% double side setback model is highly efficient to regulate the moment for both along and across wind conditions. It reduces 17.5% compared to the 20% single side setback and 14% moment compared to the 10% double side setback models. The double side setback building is more efficient to control 4.2% moment than the single side setback building

Keywords

Acknowledgement

The authors thank the editor for deciding the manuscript in the reputed journal. The authors also thank the reviewers for the valuable comments on the manuscript.

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