Evaluation of seismic reliability of steel moment resisting frames rehabilitated by concentric braces with probabilistic models

Probability of structure failure which has been designed by "deterministic methods" can be more than the one which has been designed in similar situation using probabilistic methods and models considering "uncertainties". The main purpose of this research was to evaluate the seis...

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Autores principales:	Fateme Rezaei, Mohsen Gerami, Hosein Naderpour
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2017
Materias:	seismic reliability steel moment resisting frame rehabilitation probabilistic model Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/3e57cc52ab0a4adfaf3bb7d1ca0cc0d5
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spelling	oai:doaj.org-article:3e57cc52ab0a4adfaf3bb7d1ca0cc0d52021-11-08T15:46:36ZEvaluation of seismic reliability of steel moment resisting frames rehabilitated by concentric braces with probabilistic models2476-39772538-261610.22065/jsce.2016.38895https://doaj.org/article/3e57cc52ab0a4adfaf3bb7d1ca0cc0d52017-08-01T00:00:00Zhttps://www.jsce.ir/article_38895_65da0d6fba7b586bf05363173a15e6b0.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Probability of structure failure which has been designed by "deterministic methods" can be more than the one which has been designed in similar situation using probabilistic methods and models considering "uncertainties". The main purpose of this research was to evaluate the seismic reliability of steel moment resisting frames rehabilitated with concentric braces by probabilistic models. To do so, three-story and nine-story steel moment resisting frames were designed based on resistant criteria of Iranian code and then they were rehabilitated based on controlling drift limitations by concentric braces. Probability of frames failure was evaluated by probabilistic models of magnitude, location of earthquake, ground shaking intensity in the area of the structure, probabilistic model of building response (based on maximum lateral roof displacement) and probabilistic methods. These frames were analyzed under subcrustal source by sampling probabilistic method "Risk Tools" (RT). Comparing the exceedance probability of building response curves (or selected points on it) of the three-story and nine-story model frames (before and after rehabilitation), seismic response of rehabilitated frames, was reduced and their reliability was improved. Also the main effective variables in reducing the probability of frames failure were determined using sensitivity analysis by FORM probabilistic method. The most effective variables reducing the probability of frames failure are in the magnitude model, ground shaking intensity model error and magnitude model errorFateme RezaeiMohsen GeramiHosein NaderpourIranian Society of Structrual Engineering (ISSE)articleseismic reliabilitysteel moment resisting framerehabilitationprobabilistic modelBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 4, Iss 2, Pp 5-18 (2017)
institution	DOAJ
collection	DOAJ
language	FA
topic	seismic reliability steel moment resisting frame rehabilitation probabilistic model Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	seismic reliability steel moment resisting frame rehabilitation probabilistic model Bridge engineering TG1-470 Building construction TH1-9745 Fateme Rezaei Mohsen Gerami Hosein Naderpour Evaluation of seismic reliability of steel moment resisting frames rehabilitated by concentric braces with probabilistic models
description	Probability of structure failure which has been designed by "deterministic methods" can be more than the one which has been designed in similar situation using probabilistic methods and models considering "uncertainties". The main purpose of this research was to evaluate the seismic reliability of steel moment resisting frames rehabilitated with concentric braces by probabilistic models. To do so, three-story and nine-story steel moment resisting frames were designed based on resistant criteria of Iranian code and then they were rehabilitated based on controlling drift limitations by concentric braces. Probability of frames failure was evaluated by probabilistic models of magnitude, location of earthquake, ground shaking intensity in the area of the structure, probabilistic model of building response (based on maximum lateral roof displacement) and probabilistic methods. These frames were analyzed under subcrustal source by sampling probabilistic method "Risk Tools" (RT). Comparing the exceedance probability of building response curves (or selected points on it) of the three-story and nine-story model frames (before and after rehabilitation), seismic response of rehabilitated frames, was reduced and their reliability was improved. Also the main effective variables in reducing the probability of frames failure were determined using sensitivity analysis by FORM probabilistic method. The most effective variables reducing the probability of frames failure are in the magnitude model, ground shaking intensity model error and magnitude model error
format	article
author	Fateme Rezaei Mohsen Gerami Hosein Naderpour
author_facet	Fateme Rezaei Mohsen Gerami Hosein Naderpour
author_sort	Fateme Rezaei
title	Evaluation of seismic reliability of steel moment resisting frames rehabilitated by concentric braces with probabilistic models
title_short	Evaluation of seismic reliability of steel moment resisting frames rehabilitated by concentric braces with probabilistic models
title_full	Evaluation of seismic reliability of steel moment resisting frames rehabilitated by concentric braces with probabilistic models
title_fullStr	Evaluation of seismic reliability of steel moment resisting frames rehabilitated by concentric braces with probabilistic models
title_full_unstemmed	Evaluation of seismic reliability of steel moment resisting frames rehabilitated by concentric braces with probabilistic models
title_sort	evaluation of seismic reliability of steel moment resisting frames rehabilitated by concentric braces with probabilistic models
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2017
url	https://doaj.org/article/3e57cc52ab0a4adfaf3bb7d1ca0cc0d5
work_keys_str_mv	AT fatemerezaei evaluationofseismicreliabilityofsteelmomentresistingframesrehabilitatedbyconcentricbraceswithprobabilisticmodels AT mohsengerami evaluationofseismicreliabilityofsteelmomentresistingframesrehabilitatedbyconcentricbraceswithprobabilisticmodels AT hoseinnaderpour evaluationofseismicreliabilityofsteelmomentresistingframesrehabilitatedbyconcentricbraceswithprobabilisticmodels
_version_	1718441652345896960

Evaluation of seismic reliability of steel moment resisting frames rehabilitated by concentric braces with probabilistic models

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