Wind Pressure Analysis on the Selected Structure Using IS 875 (Part 3) 2015 and CFD (Computational Fluid Dynamics)

Year : 2026 | Volume : 13 | Issue : 02 | Page : 70 80
By

Raj Singh,

Sneha Gupta,

  1. , Student,Department of Civil Engineering Madan Mohan Malaviya University of Technology Gorakhpur, Uttar Pradesh, India, ,
  2. , Assistant Professor, Department of Civil Engineering Madan Mohan Malaviya University of Technology Gorakhpur, Uttar Pradesh, India, ,

Abstract

Wind-induced pressure plays a significant role in the safety and serviceability of tall buildings, slender vertical structures, and signboard hoardings. Currently, computational fluid dynamics (CFD) has become an effective supplemental tool in the analysis of the interaction of wind and structures. This paper presents a unified comparative study integrating multiple investigations various modal (ⅰ) Tall rectangular building (50 m × 50 m × 150 m), (ⅱ) Rectangular Building (18 m × 12 m × 51 m) analyzed using the force coefficient method as per IS 875 (Part 3):2015, (ⅲ) Tall Rectangular Building (24 m × 12 m × 96 m) analyzed using the Guest Factor Approach as per IS 875(Part 3):2015, (ⅳ) Signboard Hoarding Structure analyzed using IS 875(Part 3):2015 with the CFD simulations performed in ANSYS Fluent. Three-dimensional (3D) numerical models were developed, and steady-state simulations employing the standard k–ε turbulence model were carried out under realistic boundary conditions. The CFD-predicted wind pressures show close agreement with codal values, with deviations generally within 0.3 – 4% for maximum windward pressures. However, CFD reveals significant spatial variations and higher suction zones on leeward and side faces that are not explicitly represented in codal methods. The study demonstrates that IS 875 and the gust factor method remain reliable for preliminary and global design, whereas CFD provides enhanced insight into localized pressure behavior critical for detailing, cladding design, and failure assessment. A combined use of codal provisions and CFD analysis is therefore recommended for improved accuracy and structural safety in wind-sensitive applications.

Keywords: Wind pressure, gust factor method, CFD, ANSYS Fluent

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

How to cite this article: Raj Singh, Sneha Gupta. Wind Pressure Analysis on the Selected Structure Using IS 875 (Part 3) 2015 and CFD (Computational Fluid Dynamics). Journal of Offshore Structure and Technology. 2026; 13(02):70-80.
How to cite this URL: Raj Singh, Sneha Gupta. Wind Pressure Analysis on the Selected Structure Using IS 875 (Part 3) 2015 and CFD (Computational Fluid Dynamics). Journal of Offshore Structure and Technology. 2026; 13(02):70-80. Available from: https://journals.stmjournals.com/joost/article=2026/view=257667

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Regular Issue Subscription Original Research
Volume 13
Issue 02
Received 23/07/2026
Accepted 07/08/2026
Published 10/08/2026
Publication Time 18 Days

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