Aerodynamic Effects of Wind on Multi-Story Structures: A Height- and Terrain-Based Analysis

Year : 2025 | Volume : 12 | Issue : 03 | Page : 1 14
    By

    Monali Raghunath Bhale,

  • R.S. Londhe,

Abstract

Wind loads are a critical consideration in the structural design of buildings, with direct implications for safety and serviceability. This study investigates the aerodynamic behavior of reinforced cement concrete (RCC) buildings under varying heights and terrain conditions, in accordance with IS: 875 (Part 3): 2015. 12 structural models representing 20 m, 35 m, and 50 m tall buildings were analyzed using extended three-dimensional analysis of building system (ETABS) across four terrain categories in wind zones II to replicate a range of environmental scenarios. Static wind responses were examined, focusing on key parameters including overturning moment and displacement. Results demonstrate that terrain roughness and building height significantly affect wind-induced structural responses. The study emphasizes the importance of site-specific wind zoning and terrain classification in design and validates the applicability of Indian Standards through numerical simulation. These findings provide actionable insights for structural engineers aiming to improve wind resistance and optimize RCC building design.

Keywords: Wind load, ETABS, IS:875 (Part 3), terrain category, structural stability, aerodynamics

[This article belongs to Journal of Offshore Structure and Technology ]

How to cite this article:
Monali Raghunath Bhale, R.S. Londhe. Aerodynamic Effects of Wind on Multi-Story Structures: A Height- and Terrain-Based Analysis. Journal of Offshore Structure and Technology. 2025; 12(03):1-14.
How to cite this URL:
Monali Raghunath Bhale, R.S. Londhe. Aerodynamic Effects of Wind on Multi-Story Structures: A Height- and Terrain-Based Analysis. Journal of Offshore Structure and Technology. 2025; 12(03):1-14. Available from: https://journals.stmjournals.com/joost/article=2025/view=234980


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Regular Issue Subscription Original Research
Volume 12
Issue 03
Received 25/05/2025
Accepted 09/07/2025
Published 08/10/2025
Publication Time 136 Days
159

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