A Pushover Procedure Based on the Modal Story Shear and Torsional Moment for Asymmetric-Plan Buildings under Simultaneous Bi-Directional Seismic Excitation

In this paper, a modal pushover method is introduced for the assessment of the asymmetric-plan buildings in which, a load pattern is derived based on the story shears and story torque of building due to the simultaneous excitation in x and y directions. The proposed method is a single-run procedure...

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Autores principales:	Kazem Shakeri, Elahe Khansoltani
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2021
Materias:	nonlinear analysis pushover analysis asymmetric-plan building simultaneous bi-directional excitation inter-story drift Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/16356c77c54749538783f43875ff14f6
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spelling	oai:doaj.org-article:16356c77c54749538783f43875ff14f62021-11-08T15:54:49ZA Pushover Procedure Based on the Modal Story Shear and Torsional Moment for Asymmetric-Plan Buildings under Simultaneous Bi-Directional Seismic Excitation2476-39772538-261610.22065/jsce.2019.158645.1721https://doaj.org/article/16356c77c54749538783f43875ff14f62021-06-01T00:00:00Zhttps://www.jsce.ir/article_93849_6ca4ceccb73d5b289c2e782155ec13df.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616In this paper, a modal pushover method is introduced for the assessment of the asymmetric-plan buildings in which, a load pattern is derived based on the story shears and story torque of building due to the simultaneous excitation in x and y directions. The proposed method is a single-run procedure and its significant advantage is its capability in consideration of the structural yielding in one direction on the total responses of the structure due to the simultaneous excitation in two orthogonal directions. In this method, in order to consider the instantaneous changes during the pushover analysis, two capacity curves of the structure are established based on the adaptive capacity spectrum method and the target displacement corresponding to each capacity curve is determined. Then, the structural responses at two pushover steps corresponding to the obtained target displacements are obtained. Eventually, the total responses of the structure are computed by combining the responses corresponding to the x and y directions. In order to evaluate the proposed method, this method has been applied to an irregular 20-story building subjected to the seven pairs of ground motion records and the obtained results are compared with the responses of nonlinear dynamic analysis as the exact responses. The results show the high accuracy of the proposed method in estimating the inter-story drifts of the studied building.Kazem ShakeriElahe KhansoltaniIranian Society of Structrual Engineering (ISSE)articlenonlinear analysispushover analysisasymmetric-plan buildingsimultaneous bi-directional excitationinter-story driftBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 8, Iss 4, Pp 315-333 (2021)
institution	DOAJ
collection	DOAJ
language	FA
topic	nonlinear analysis pushover analysis asymmetric-plan building simultaneous bi-directional excitation inter-story drift Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	nonlinear analysis pushover analysis asymmetric-plan building simultaneous bi-directional excitation inter-story drift Bridge engineering TG1-470 Building construction TH1-9745 Kazem Shakeri Elahe Khansoltani A Pushover Procedure Based on the Modal Story Shear and Torsional Moment for Asymmetric-Plan Buildings under Simultaneous Bi-Directional Seismic Excitation
description	In this paper, a modal pushover method is introduced for the assessment of the asymmetric-plan buildings in which, a load pattern is derived based on the story shears and story torque of building due to the simultaneous excitation in x and y directions. The proposed method is a single-run procedure and its significant advantage is its capability in consideration of the structural yielding in one direction on the total responses of the structure due to the simultaneous excitation in two orthogonal directions. In this method, in order to consider the instantaneous changes during the pushover analysis, two capacity curves of the structure are established based on the adaptive capacity spectrum method and the target displacement corresponding to each capacity curve is determined. Then, the structural responses at two pushover steps corresponding to the obtained target displacements are obtained. Eventually, the total responses of the structure are computed by combining the responses corresponding to the x and y directions. In order to evaluate the proposed method, this method has been applied to an irregular 20-story building subjected to the seven pairs of ground motion records and the obtained results are compared with the responses of nonlinear dynamic analysis as the exact responses. The results show the high accuracy of the proposed method in estimating the inter-story drifts of the studied building.
format	article
author	Kazem Shakeri Elahe Khansoltani
author_facet	Kazem Shakeri Elahe Khansoltani
author_sort	Kazem Shakeri
title	A Pushover Procedure Based on the Modal Story Shear and Torsional Moment for Asymmetric-Plan Buildings under Simultaneous Bi-Directional Seismic Excitation
title_short	A Pushover Procedure Based on the Modal Story Shear and Torsional Moment for Asymmetric-Plan Buildings under Simultaneous Bi-Directional Seismic Excitation
title_full	A Pushover Procedure Based on the Modal Story Shear and Torsional Moment for Asymmetric-Plan Buildings under Simultaneous Bi-Directional Seismic Excitation
title_fullStr	A Pushover Procedure Based on the Modal Story Shear and Torsional Moment for Asymmetric-Plan Buildings under Simultaneous Bi-Directional Seismic Excitation
title_full_unstemmed	A Pushover Procedure Based on the Modal Story Shear and Torsional Moment for Asymmetric-Plan Buildings under Simultaneous Bi-Directional Seismic Excitation
title_sort	pushover procedure based on the modal story shear and torsional moment for asymmetric-plan buildings under simultaneous bi-directional seismic excitation
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2021
url	https://doaj.org/article/16356c77c54749538783f43875ff14f6
work_keys_str_mv	AT kazemshakeri apushoverprocedurebasedonthemodalstoryshearandtorsionalmomentforasymmetricplanbuildingsundersimultaneousbidirectionalseismicexcitation AT elahekhansoltani apushoverprocedurebasedonthemodalstoryshearandtorsionalmomentforasymmetricplanbuildingsundersimultaneousbidirectionalseismicexcitation AT kazemshakeri pushoverprocedurebasedonthemodalstoryshearandtorsionalmomentforasymmetricplanbuildingsundersimultaneousbidirectionalseismicexcitation AT elahekhansoltani pushoverprocedurebasedonthemodalstoryshearandtorsionalmomentforasymmetricplanbuildingsundersimultaneousbidirectionalseismicexcitation
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A Pushover Procedure Based on the Modal Story Shear and Torsional Moment for Asymmetric-Plan Buildings under Simultaneous Bi-Directional Seismic Excitation

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