Wind and Structures

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Minimization of wind load on setback tall building using multiobjective optimization procedure

  • 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 : 2021.12.05
  • Accepted : 2022.09.06
  • Published : 2022.09.25
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Abstract

This paper highlights the minimization of drag and lift coefficient of different types both side setback tall buildings by the multi-objective optimization technique. The present study employed 48 number both-side setback models for simulation purposes. This study adopted three variables to find the two objective functions. Setback height and setback distances from the top of building models are considered variables. The setback distances are considered between 10-40% and setback heights are within 6-72% from the top of the models. Another variable is wind angles, which are considered from 0° to 90° at 15° intervals according to the symmetry of the building models. Drag and lift coefficients according to the different wind angles are employed as the objective functions. Therefore 336 number population data are used for each objective function. Optimum models are compared with computational simulation and found good agreements of drag and lift coefficient. The design wind angle variation of the optimum models is considered for drag and lift study on the main square model. The drag and lift data of the square model are compared with the optimum models and found the optimized models are minimizing the 45-65% drag and 25-60% lift compared to the initial square model.

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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