Probabilistic assessment of steel moment frames incremental collapse (ordinary, intermediate and special) under earthquake

Building collapse is a level of the structure performance in which the amount of financial and life loss is maximized, so this event could be the worst incident in the construction. Regarding to the possibility of destructive earthquakes in different parts of the world, detailed assessment of the st...

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Autores principales:	Kourosh Mehdizadeh, Abbas Karamodin
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2017
Materias:	steel moment frame ductility deteriorating collapse capacity incremental dynamic analysis fema p 695 instruction fragility curve Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/44bed4fdb7734c04b42cc7b63128a178
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spelling	oai:doaj.org-article:44bed4fdb7734c04b42cc7b63128a1782021-11-08T15:46:44ZProbabilistic assessment of steel moment frames incremental collapse (ordinary, intermediate and special) under earthquake2476-39772538-261610.22065/jsce.2017.75370.1066https://doaj.org/article/44bed4fdb7734c04b42cc7b63128a1782017-11-01T00:00:00Zhttps://www.jsce.ir/article_46005_623807ebf9fd39518b35dee04b153a8b.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Building collapse is a level of the structure performance in which the amount of financial and life loss is maximized, so this event could be the worst incident in the construction. Regarding to the possibility of destructive earthquakes in different parts of the world, detailed assessment of the structure's collapse has been one of the major challenges of the structural engineering. In this regard, offering models based on laboratory studies, considering the effective parameters and appropriate earthquakes could be a step towards achieving this goal. In this research, a five-story steel structure with a system of ordinary, intermediate and special moment frame (low, intermediate and high ductility) has been designed based on the local regulations. In this study, the effect of resistance and stiffness deterioration of the structural elements based on the results of the laboratory models have been considered and the ductility role in the collapse capacity of steel moment frames has been investigated as probabilistic matter. For this purpose, incremental dynamic analysis has been done under 50 pairs of earthquake records proposing FEMA P695 instruction and fragility curves of various performance levels are developed. Results showed higher collapse capacity of special moment steel frame than the intermediate and ordinary moment frames. In the 50 percent probability level, the collapse capacity of special moment frame increased 34 % compared to the intermediate moment frame and 66 % to the ordinary moment frame. Also, the results showed that for different collapse spectral accelerations, the use of special moment frame instead of intermediate and ordinary moment frames reduces the collapse probability to 30 and 50 % respectively.Kourosh MehdizadehAbbas KaramodinIranian Society of Structrual Engineering (ISSE)articlesteel moment frameductilitydeterioratingcollapse capacityincremental dynamic analysisfema p 695 instructionfragility curveBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 4, Iss 3, Pp 129-147 (2017)
institution	DOAJ
collection	DOAJ
language	FA
topic	steel moment frame ductility deteriorating collapse capacity incremental dynamic analysis fema p 695 instruction fragility curve Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	steel moment frame ductility deteriorating collapse capacity incremental dynamic analysis fema p 695 instruction fragility curve Bridge engineering TG1-470 Building construction TH1-9745 Kourosh Mehdizadeh Abbas Karamodin Probabilistic assessment of steel moment frames incremental collapse (ordinary, intermediate and special) under earthquake
description	Building collapse is a level of the structure performance in which the amount of financial and life loss is maximized, so this event could be the worst incident in the construction. Regarding to the possibility of destructive earthquakes in different parts of the world, detailed assessment of the structure's collapse has been one of the major challenges of the structural engineering. In this regard, offering models based on laboratory studies, considering the effective parameters and appropriate earthquakes could be a step towards achieving this goal. In this research, a five-story steel structure with a system of ordinary, intermediate and special moment frame (low, intermediate and high ductility) has been designed based on the local regulations. In this study, the effect of resistance and stiffness deterioration of the structural elements based on the results of the laboratory models have been considered and the ductility role in the collapse capacity of steel moment frames has been investigated as probabilistic matter. For this purpose, incremental dynamic analysis has been done under 50 pairs of earthquake records proposing FEMA P695 instruction and fragility curves of various performance levels are developed. Results showed higher collapse capacity of special moment steel frame than the intermediate and ordinary moment frames. In the 50 percent probability level, the collapse capacity of special moment frame increased 34 % compared to the intermediate moment frame and 66 % to the ordinary moment frame. Also, the results showed that for different collapse spectral accelerations, the use of special moment frame instead of intermediate and ordinary moment frames reduces the collapse probability to 30 and 50 % respectively.
format	article
author	Kourosh Mehdizadeh Abbas Karamodin
author_facet	Kourosh Mehdizadeh Abbas Karamodin
author_sort	Kourosh Mehdizadeh
title	Probabilistic assessment of steel moment frames incremental collapse (ordinary, intermediate and special) under earthquake
title_short	Probabilistic assessment of steel moment frames incremental collapse (ordinary, intermediate and special) under earthquake
title_full	Probabilistic assessment of steel moment frames incremental collapse (ordinary, intermediate and special) under earthquake
title_fullStr	Probabilistic assessment of steel moment frames incremental collapse (ordinary, intermediate and special) under earthquake
title_full_unstemmed	Probabilistic assessment of steel moment frames incremental collapse (ordinary, intermediate and special) under earthquake
title_sort	probabilistic assessment of steel moment frames incremental collapse (ordinary, intermediate and special) under earthquake
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2017
url	https://doaj.org/article/44bed4fdb7734c04b42cc7b63128a178
work_keys_str_mv	AT kouroshmehdizadeh probabilisticassessmentofsteelmomentframesincrementalcollapseordinaryintermediateandspecialunderearthquake AT abbaskaramodin probabilisticassessmentofsteelmomentframesincrementalcollapseordinaryintermediateandspecialunderearthquake
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Probabilistic assessment of steel moment frames incremental collapse (ordinary, intermediate and special) under earthquake

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