Parametric Study of the Crosswind Response of Tall Buildings Using Frequency Domain Analysis and Random Vibration Method

By increasing the height and slenderness of tall buildings, the wind-induced dynamic response especially crosswind response becomes the governing parameter in the occupant comfort requirement of tall buildings. In the present study, crosswind response of tall buildings has been investigated using th...

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Autor principal:	Nahmat Khodaie
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2021
Materias:	crosswind response tall building frequency domain analysis random vibration parametric study Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/49ccd66b0f0b4152b3b80b01b0233534
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spelling	oai:doaj.org-article:49ccd66b0f0b4152b3b80b01b02335342021-11-08T15:54:49ZParametric Study of the Crosswind Response of Tall Buildings Using Frequency Domain Analysis and Random Vibration Method2476-39772538-261610.22065/jsce.2019.190732.1884https://doaj.org/article/49ccd66b0f0b4152b3b80b01b02335342021-06-01T00:00:00Zhttps://www.jsce.ir/article_91835_3bb9136ab9549863477d2742fe33ba0f.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616By increasing the height and slenderness of tall buildings, the wind-induced dynamic response especially crosswind response becomes the governing parameter in the occupant comfort requirement of tall buildings. In the present study, crosswind response of tall buildings has been investigated using the frequency domain analysis of multi-degrees-of-freedom systems based on the random vibration method. The tall structure has been modeled as a vertical cantilever beam with the masses lumped at the nodes. All the modeling and analysis procedure, including element meshing, determining the transfer matrix, calculating the matrix of crosswind force spectrum, and the numerical integration to obtain the root-mean-square (RMS) displacement and acceleration responses are carried out using MATLAB software. The effect of different parameters, such as basic wind speed, aspect ratio, side ratio for rectangle section and top to bottom width ratio for tapered tall buildings has been investigated. The results show that the slenderness ratio has an important role on the across-wind response. For tapered buildings, the crosswind displacement response decreases considerably with increasing the top to bottom width ratio. For the studied tall buildings, the crosswind acceleration response is higher than the occupant comfort level and it requires to be reduced using an appropriate control strategy.Nahmat KhodaieIranian Society of Structrual Engineering (ISSE)articlecrosswind responsetall buildingfrequency domain analysisrandom vibrationparametric studyBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 8, Iss 4, Pp 87-105 (2021)
institution	DOAJ
collection	DOAJ
language	FA
topic	crosswind response tall building frequency domain analysis random vibration parametric study Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	crosswind response tall building frequency domain analysis random vibration parametric study Bridge engineering TG1-470 Building construction TH1-9745 Nahmat Khodaie Parametric Study of the Crosswind Response of Tall Buildings Using Frequency Domain Analysis and Random Vibration Method
description	By increasing the height and slenderness of tall buildings, the wind-induced dynamic response especially crosswind response becomes the governing parameter in the occupant comfort requirement of tall buildings. In the present study, crosswind response of tall buildings has been investigated using the frequency domain analysis of multi-degrees-of-freedom systems based on the random vibration method. The tall structure has been modeled as a vertical cantilever beam with the masses lumped at the nodes. All the modeling and analysis procedure, including element meshing, determining the transfer matrix, calculating the matrix of crosswind force spectrum, and the numerical integration to obtain the root-mean-square (RMS) displacement and acceleration responses are carried out using MATLAB software. The effect of different parameters, such as basic wind speed, aspect ratio, side ratio for rectangle section and top to bottom width ratio for tapered tall buildings has been investigated. The results show that the slenderness ratio has an important role on the across-wind response. For tapered buildings, the crosswind displacement response decreases considerably with increasing the top to bottom width ratio. For the studied tall buildings, the crosswind acceleration response is higher than the occupant comfort level and it requires to be reduced using an appropriate control strategy.
format	article
author	Nahmat Khodaie
author_facet	Nahmat Khodaie
author_sort	Nahmat Khodaie
title	Parametric Study of the Crosswind Response of Tall Buildings Using Frequency Domain Analysis and Random Vibration Method
title_short	Parametric Study of the Crosswind Response of Tall Buildings Using Frequency Domain Analysis and Random Vibration Method
title_full	Parametric Study of the Crosswind Response of Tall Buildings Using Frequency Domain Analysis and Random Vibration Method
title_fullStr	Parametric Study of the Crosswind Response of Tall Buildings Using Frequency Domain Analysis and Random Vibration Method
title_full_unstemmed	Parametric Study of the Crosswind Response of Tall Buildings Using Frequency Domain Analysis and Random Vibration Method
title_sort	parametric study of the crosswind response of tall buildings using frequency domain analysis and random vibration method
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2021
url	https://doaj.org/article/49ccd66b0f0b4152b3b80b01b0233534
work_keys_str_mv	AT nahmatkhodaie parametricstudyofthecrosswindresponseoftallbuildingsusingfrequencydomainanalysisandrandomvibrationmethod
_version_	1718441562772340736

Parametric Study of the Crosswind Response of Tall Buildings Using Frequency Domain Analysis and Random Vibration Method

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