Seismic Evaluation of Frame with Belt Truss by Incremental Modified Pushover Analysis (IMPA)

Nowadays, nonlinear static and dynamic analyses methods are rapidly expanding to evaluate the seismic performance of structures. Nonlinear dynamic analyses methods require a large amount of computations and are relatively time consuming. This fact has led to the emergence of novel methods based on t...

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Autores principales:	Hamed Gholami Heidarabadi, Jafar Keyvani Ghamsari, Seyed Hosein Hoseini Lavasani
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2021
Materias:	nonlinear analysis incremental dynamic analysis incremental modified nonlinear static analysis seismic performance belt truss Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/17257a2b19ca40259413c682cdfcbef1
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id	oai:doaj.org-article:17257a2b19ca40259413c682cdfcbef1
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spelling	oai:doaj.org-article:17257a2b19ca40259413c682cdfcbef12021-11-08T15:54:18ZSeismic Evaluation of Frame with Belt Truss by Incremental Modified Pushover Analysis (IMPA)2476-39772538-261610.22065/jsce.2019.117924.1453https://doaj.org/article/17257a2b19ca40259413c682cdfcbef12021-03-01T00:00:00Zhttps://www.jsce.ir/article_82922_873b1b25bd46469df4cb3669048ca93b.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Nowadays, nonlinear static and dynamic analyses methods are rapidly expanding to evaluate the seismic performance of structures. Nonlinear dynamic analyses methods require a large amount of computations and are relatively time consuming. This fact has led to the emergence of novel methods based on the concepts of nonlinear static and dynamic analyses. One of the most widely used structures in tall buildings is a combination of the two popular building structures: Bundled tube frame and belt truss. This structural form is effective in reducing the structure responses to lateral loadings. In this paper, two 20-story Steel buildings with different arrangement of resistant rigid belt truss in the 19th and 20th stories have been evaluated under 7 pairs of far and near-field scaled ground motion. Incremental dynamic (IDA), Incremental modified Pushover (IMPA), modal pushover (MPA), and dynamic time history analyses have been conducted to evaluate the seismic response of the structures. The accuracy of the IMPA method has been compared to that of the Incremental Dynamic Analysis (IDA), and a comparison has been also made between nonlinear behavior of the studied models, with and without the belt truss. Results indicate the significant difference in the story drift in the three aforementioned structural configurations under high-amplitude speed pulses. Structures stiffened with belt truss at higher levels of PGA have collapsed and the seismic capacity of the frame has been increased in the upper floors. Maximum relative displacement has been occurred in the inelastic response area near the middle stories.Hamed Gholami HeidarabadiJafar Keyvani GhamsariSeyed Hosein Hoseini LavasaniIranian Society of Structrual Engineering (ISSE)articlenonlinear analysisincremental dynamic analysisincremental modified nonlinear static analysisseismic performancebelt trussBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 8, Iss 1, Pp 23-41 (2021)
institution	DOAJ
collection	DOAJ
language	FA
topic	nonlinear analysis incremental dynamic analysis incremental modified nonlinear static analysis seismic performance belt truss Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	nonlinear analysis incremental dynamic analysis incremental modified nonlinear static analysis seismic performance belt truss Bridge engineering TG1-470 Building construction TH1-9745 Hamed Gholami Heidarabadi Jafar Keyvani Ghamsari Seyed Hosein Hoseini Lavasani Seismic Evaluation of Frame with Belt Truss by Incremental Modified Pushover Analysis (IMPA)
description	Nowadays, nonlinear static and dynamic analyses methods are rapidly expanding to evaluate the seismic performance of structures. Nonlinear dynamic analyses methods require a large amount of computations and are relatively time consuming. This fact has led to the emergence of novel methods based on the concepts of nonlinear static and dynamic analyses. One of the most widely used structures in tall buildings is a combination of the two popular building structures: Bundled tube frame and belt truss. This structural form is effective in reducing the structure responses to lateral loadings. In this paper, two 20-story Steel buildings with different arrangement of resistant rigid belt truss in the 19th and 20th stories have been evaluated under 7 pairs of far and near-field scaled ground motion. Incremental dynamic (IDA), Incremental modified Pushover (IMPA), modal pushover (MPA), and dynamic time history analyses have been conducted to evaluate the seismic response of the structures. The accuracy of the IMPA method has been compared to that of the Incremental Dynamic Analysis (IDA), and a comparison has been also made between nonlinear behavior of the studied models, with and without the belt truss. Results indicate the significant difference in the story drift in the three aforementioned structural configurations under high-amplitude speed pulses. Structures stiffened with belt truss at higher levels of PGA have collapsed and the seismic capacity of the frame has been increased in the upper floors. Maximum relative displacement has been occurred in the inelastic response area near the middle stories.
format	article
author	Hamed Gholami Heidarabadi Jafar Keyvani Ghamsari Seyed Hosein Hoseini Lavasani
author_facet	Hamed Gholami Heidarabadi Jafar Keyvani Ghamsari Seyed Hosein Hoseini Lavasani
author_sort	Hamed Gholami Heidarabadi
title	Seismic Evaluation of Frame with Belt Truss by Incremental Modified Pushover Analysis (IMPA)
title_short	Seismic Evaluation of Frame with Belt Truss by Incremental Modified Pushover Analysis (IMPA)
title_full	Seismic Evaluation of Frame with Belt Truss by Incremental Modified Pushover Analysis (IMPA)
title_fullStr	Seismic Evaluation of Frame with Belt Truss by Incremental Modified Pushover Analysis (IMPA)
title_full_unstemmed	Seismic Evaluation of Frame with Belt Truss by Incremental Modified Pushover Analysis (IMPA)
title_sort	seismic evaluation of frame with belt truss by incremental modified pushover analysis (impa)
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2021
url	https://doaj.org/article/17257a2b19ca40259413c682cdfcbef1
work_keys_str_mv	AT hamedgholamiheidarabadi seismicevaluationofframewithbelttrussbyincrementalmodifiedpushoveranalysisimpa AT jafarkeyvanighamsari seismicevaluationofframewithbelttrussbyincrementalmodifiedpushoveranalysisimpa AT seyedhoseinhoseinilavasani seismicevaluationofframewithbelttrussbyincrementalmodifiedpushoveranalysisimpa
_version_	1718441546177576960

Seismic Evaluation of Frame with Belt Truss by Incremental Modified Pushover Analysis (IMPA)

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