Structural Response Assessment of High-Rise Buildings Subjected to Wind Loads Considering the Brazilian Standard and CFD Simulations

George Lucas da Silva Quintanilha; Leonardo Ferreira de Miranda; Jose Guilherme Santos da Silva

doi:10.48084/etasr.17752

Authors

George Lucas da Silva Quintanilha Postgraduate Program in Civil Engineering, Rio de Janeiro State University, Brazil
Leonardo Ferreira de Miranda Postgraduate Program in Civil Engineering, Rio de Janeiro State University, Brazil
Jose Guilherme Santos da Silva Postgraduate Program in Civil Engineering, Rio de Janeiro State University, Brazil

Volume: 16 | Issue: 3 | Pages: 36025-36031 | June 2026 | https://doi.org/10.48084/etasr.17752

Received: 25 January 2026 | Revised: 22 March 2026 | Accepted: 1 April 2026 | Online: 4 May 2026

Corresponding author: Jose Guilherme Santos da Silva

Abstract

This study examines human comfort in tall buildings subjected to non-deterministic wind loads, considering different analysis methodologies and design recommendations. Since wind velocity is composed of a mean component and a fluctuating component, the mean part was determined in accordance with the recommendations of the Brazilian standard NBR 6123 and through numerical simulation based on Computational Fluid Dynamics (CFD) analysis, whereas the fluctuating part was defined using the Spectral Representation Method (SRM). The case study comprises a 100 m high reinforced concrete building, for which numerical analysis was performed using the Finite Element Method (FEM) in the ANSYS software. The results indicated that the variation in dynamic responses between the methodologies reached 10% for displacements and 5% for accelerations. Maximum displacements and RMS accelerations satisfied the adopted limits. However, peak accelerations exceeded the comfort requirements for residential buildings.

Keywords:

wind loads, high-rise buildings, human comfort assessment, Computational Fluid Dynamics (CFD)

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