Approximate Analysis of Framed Tube Structures for Static Parabolic Shape Lateral Loads

According to increase of population in cities, tall buildings and especially framed tube structures have been become interesting for structural engineers. Framed structure act primarily like cantilevered box beams and since they generally have much larger lateral dimensions than the internal shear w...

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Autores principales:	Masooud Mahmoudabadi, Seyed mohammad Reza Hasani, mohammad Zaefi
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2020
Materias:	tubular framing lateral load approximate analysis loading kwan method Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/d34c721c37ae4b70974d58c834388296
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spelling	oai:doaj.org-article:d34c721c37ae4b70974d58c8343882962021-11-08T15:53:49ZApproximate Analysis of Framed Tube Structures for Static Parabolic Shape Lateral Loads2476-39772538-261610.22065/jsce.2018.140936.1609https://doaj.org/article/d34c721c37ae4b70974d58c8343882962020-04-01T00:00:00Zhttps://www.jsce.ir/article_79390_41b24ab07324c1c06204b3ead2c2373c.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616According to increase of population in cities, tall buildings and especially framed tube structures have been become interesting for structural engineers. Framed structure act primarily like cantilevered box beams and since they generally have much larger lateral dimensions than the internal shear wall cores, they are more effective in resisting the overturning moments of the lateral loads. However, due to flexural and shear flexibilities of the frame members, the basic beam bending actions of the framed tubes are complicated by the occurrence of shear lag, which could significantly affect the stress distributions in the frame panels and reduce the lateral stiffnesses of the structures. In this paper, a method has been adapted to study the shear lag coefficients for web and flange panels and for point, uniform distributed and triangular distributed loadings and then, the shear lag coefficients for the web and the flange panels are obtained for the parabolic shape lateral loads. Finally, by analyzing a 40-story framed tube structure under parabolic Shape lateral loading using this approximation method and comparing it with computer analysis, the error value in stress and displacement is estimated. The results of the research indicate that this method is suitable for the initial stages of the analysis and design of these types of structures.Masooud MahmoudabadiSeyed mohammad Reza Hasanimohammad ZaefiIranian Society of Structrual Engineering (ISSE)articletubular framinglateral loadapproximate analysisloadingkwan methodBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 7, Iss شماره ویژه 1 (2020)
institution	DOAJ
collection	DOAJ
language	FA
topic	tubular framing lateral load approximate analysis loading kwan method Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	tubular framing lateral load approximate analysis loading kwan method Bridge engineering TG1-470 Building construction TH1-9745 Masooud Mahmoudabadi Seyed mohammad Reza Hasani mohammad Zaefi Approximate Analysis of Framed Tube Structures for Static Parabolic Shape Lateral Loads
description	According to increase of population in cities, tall buildings and especially framed tube structures have been become interesting for structural engineers. Framed structure act primarily like cantilevered box beams and since they generally have much larger lateral dimensions than the internal shear wall cores, they are more effective in resisting the overturning moments of the lateral loads. However, due to flexural and shear flexibilities of the frame members, the basic beam bending actions of the framed tubes are complicated by the occurrence of shear lag, which could significantly affect the stress distributions in the frame panels and reduce the lateral stiffnesses of the structures. In this paper, a method has been adapted to study the shear lag coefficients for web and flange panels and for point, uniform distributed and triangular distributed loadings and then, the shear lag coefficients for the web and the flange panels are obtained for the parabolic shape lateral loads. Finally, by analyzing a 40-story framed tube structure under parabolic Shape lateral loading using this approximation method and comparing it with computer analysis, the error value in stress and displacement is estimated. The results of the research indicate that this method is suitable for the initial stages of the analysis and design of these types of structures.
format	article
author	Masooud Mahmoudabadi Seyed mohammad Reza Hasani mohammad Zaefi
author_facet	Masooud Mahmoudabadi Seyed mohammad Reza Hasani mohammad Zaefi
author_sort	Masooud Mahmoudabadi
title	Approximate Analysis of Framed Tube Structures for Static Parabolic Shape Lateral Loads
title_short	Approximate Analysis of Framed Tube Structures for Static Parabolic Shape Lateral Loads
title_full	Approximate Analysis of Framed Tube Structures for Static Parabolic Shape Lateral Loads
title_fullStr	Approximate Analysis of Framed Tube Structures for Static Parabolic Shape Lateral Loads
title_full_unstemmed	Approximate Analysis of Framed Tube Structures for Static Parabolic Shape Lateral Loads
title_sort	approximate analysis of framed tube structures for static parabolic shape lateral loads
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2020
url	https://doaj.org/article/d34c721c37ae4b70974d58c834388296
work_keys_str_mv	AT masooudmahmoudabadi approximateanalysisofframedtubestructuresforstaticparabolicshapelateralloads AT seyedmohammadrezahasani approximateanalysisofframedtubestructuresforstaticparabolicshapelateralloads AT mohammadzaefi approximateanalysisofframedtubestructuresforstaticparabolicshapelateralloads
_version_	1718441613640859648

Approximate Analysis of Framed Tube Structures for Static Parabolic Shape Lateral Loads

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