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Wind-induced Peak Dynamic Responses of ‘Z’ Shaped Tall Building

Wind-induced Peak Dynamic Responses of ‘Z’ Shaped Tall Building This study examines deviations in peak pressures among different facets of a ‘Z’ shaped building model tested using numerical simulation technique. Peak suction and pressure for each face and the variation of gust factor (GF) along the vertical centerline of different walls of the parametric model corresponding to 0° and 90° wind angle are presented. For this purpose, the unsteady Reynolds Averaged Navier–Stokes (URANS) Computational Fluid Dynamics (CFD) simulation tool with the k-ε turbulence model is adopted. The geometric scale is taken as 1:300 and the velocity scale is 1:5. Contour plots showing changes of peak pressure at different locations of each face are also presented in the study. The dynamic effects of wind on tall structures are evaluated by gust factor in most of the available wind standards globally. The gust factor thus obtained in this particular study may be used to derive an equivalent static load for design purposes of ‘Z’ shaped in plan tall buildings to assess the wind force with sufficient precision. Finally, the characteristics of the wind power spectra are presented at the building’s top on different facets under orthogonal wind directions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of The Institution of Engineers (India):Series A Springer Journals

Wind-induced Peak Dynamic Responses of ‘Z’ Shaped Tall Building

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Publisher
Springer Journals
Copyright
Copyright © The Institution of Engineers (India) 2022
ISSN
2250-2149
eISSN
2250-2157
DOI
10.1007/s40030-022-00647-z
Publisher site
See Article on Publisher Site

Abstract

This study examines deviations in peak pressures among different facets of a ‘Z’ shaped building model tested using numerical simulation technique. Peak suction and pressure for each face and the variation of gust factor (GF) along the vertical centerline of different walls of the parametric model corresponding to 0° and 90° wind angle are presented. For this purpose, the unsteady Reynolds Averaged Navier–Stokes (URANS) Computational Fluid Dynamics (CFD) simulation tool with the k-ε turbulence model is adopted. The geometric scale is taken as 1:300 and the velocity scale is 1:5. Contour plots showing changes of peak pressure at different locations of each face are also presented in the study. The dynamic effects of wind on tall structures are evaluated by gust factor in most of the available wind standards globally. The gust factor thus obtained in this particular study may be used to derive an equivalent static load for design purposes of ‘Z’ shaped in plan tall buildings to assess the wind force with sufficient precision. Finally, the characteristics of the wind power spectra are presented at the building’s top on different facets under orthogonal wind directions.

Journal

Journal of The Institution of Engineers (India):Series ASpringer Journals

Published: May 23, 2022

Keywords: Tall building; CFD; Peak pressure; Gust factor; Vortex shedding; Power spectra

References