Overstrength of Displacement-Based Designed Eccentrically Braced Steel Frames

Direct Displacement-Based Design (DDBD) is a performance-based seismic design method that has been proposed and developed over the past two decades for RC frame structures, shear walls and bridges design. The aim of this study is to evaluate overstrength of EBFs with short, intermediate and long lin...

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Autores principales:	Sina Farahani, Amin Mohebkhah Amin Mohebkhah
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2016
Materias:	direct displacement-based design steel eccentrically braced frame seismic behavior performance level nonlinear static analysis Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/36e86771434d4a609623e92479f6b798
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id	oai:doaj.org-article:36e86771434d4a609623e92479f6b798
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spelling	oai:doaj.org-article:36e86771434d4a609623e92479f6b7982021-11-08T15:45:41ZOverstrength of Displacement-Based Designed Eccentrically Braced Steel Frames2476-39772538-2616https://doaj.org/article/36e86771434d4a609623e92479f6b7982016-03-01T00:00:00Zhttps://www.jsce.ir/article_38631_58aa2dd121e216c69a593cd74989f5f3.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Direct Displacement-Based Design (DDBD) is a performance-based seismic design method that has been proposed and developed over the past two decades for RC frame structures, shear walls and bridges design. The aim of this study is to evaluate overstrength of EBFs with short, intermediate and long link beams designed according to the DDBD method. For this purpose, twelve EBFs with 3, 5, 9 and 12 stories having short, intermediate and long link beams designed using the DDBD method. To investigate the seismic behavior of the considered EBFs, it is first necessary to model properly the nonlinear cyclic behavior of link beams properly. In this regard, the macro-model developed and proposed by Richards was utilized in this study to simulate the nonlinear behavior of some tested link beams available in the literature. After validating the finite-element model, the seismic behavior of the considered EBFs was studied using nonlinear static analyses. The results show that the overstrength factors of the DDB designed EBFs are variable depending on their links length ratio and may even be less than the factor proposed in the DDBD method (i.e. 1.5). This factor was evaluated as 1.51, 1.37 and 1.19 for the investigated EBFs in this study with short, intermediate and long link beams, respectively.Sina FarahaniAmin Mohebkhah Amin MohebkhahIranian Society of Structrual Engineering (ISSE)articledirect displacement-based designsteel eccentrically braced frameseismic behaviorperformance levelnonlinear static analysisBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 2, Iss 4, Pp 48-61 (2016)
institution	DOAJ
collection	DOAJ
language	FA
topic	direct displacement-based design steel eccentrically braced frame seismic behavior performance level nonlinear static analysis Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	direct displacement-based design steel eccentrically braced frame seismic behavior performance level nonlinear static analysis Bridge engineering TG1-470 Building construction TH1-9745 Sina Farahani Amin Mohebkhah Amin Mohebkhah Overstrength of Displacement-Based Designed Eccentrically Braced Steel Frames
description	Direct Displacement-Based Design (DDBD) is a performance-based seismic design method that has been proposed and developed over the past two decades for RC frame structures, shear walls and bridges design. The aim of this study is to evaluate overstrength of EBFs with short, intermediate and long link beams designed according to the DDBD method. For this purpose, twelve EBFs with 3, 5, 9 and 12 stories having short, intermediate and long link beams designed using the DDBD method. To investigate the seismic behavior of the considered EBFs, it is first necessary to model properly the nonlinear cyclic behavior of link beams properly. In this regard, the macro-model developed and proposed by Richards was utilized in this study to simulate the nonlinear behavior of some tested link beams available in the literature. After validating the finite-element model, the seismic behavior of the considered EBFs was studied using nonlinear static analyses. The results show that the overstrength factors of the DDB designed EBFs are variable depending on their links length ratio and may even be less than the factor proposed in the DDBD method (i.e. 1.5). This factor was evaluated as 1.51, 1.37 and 1.19 for the investigated EBFs in this study with short, intermediate and long link beams, respectively.
format	article
author	Sina Farahani Amin Mohebkhah Amin Mohebkhah
author_facet	Sina Farahani Amin Mohebkhah Amin Mohebkhah
author_sort	Sina Farahani
title	Overstrength of Displacement-Based Designed Eccentrically Braced Steel Frames
title_short	Overstrength of Displacement-Based Designed Eccentrically Braced Steel Frames
title_full	Overstrength of Displacement-Based Designed Eccentrically Braced Steel Frames
title_fullStr	Overstrength of Displacement-Based Designed Eccentrically Braced Steel Frames
title_full_unstemmed	Overstrength of Displacement-Based Designed Eccentrically Braced Steel Frames
title_sort	overstrength of displacement-based designed eccentrically braced steel frames
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2016
url	https://doaj.org/article/36e86771434d4a609623e92479f6b798
work_keys_str_mv	AT sinafarahani overstrengthofdisplacementbaseddesignedeccentricallybracedsteelframes AT aminmohebkhahaminmohebkhah overstrengthofdisplacementbaseddesignedeccentricallybracedsteelframes
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Overstrength of Displacement-Based Designed Eccentrically Braced Steel Frames

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