Analytical Fragility Curves for Bridges Subjected to Near-Fault and Far-Field Ground Motion(Case Study: Bill Emerson Bridge)

Bridges are one of the major infrastructures of a country, which, in the event of severe seismic activity and the occurrence of collapse, can cause severe damage in different regions and create a severe crisis. Bridges with very long spans have always been a great challenge for engineers throughout...

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Autores principales:	Hossein Pahlavan, Alireza Mirza Goltabar Roshan, Ali Naseri
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2021
Materias:	analytical fragility curves near fault far field bill emerson bridge cable stayed bridges Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/98eed7011c924970b836e5feb2768f25
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spelling	oai:doaj.org-article:98eed7011c924970b836e5feb2768f252021-11-08T15:54:55ZAnalytical Fragility Curves for Bridges Subjected to Near-Fault and Far-Field Ground Motion(Case Study: Bill Emerson Bridge)2476-39772538-261610.22065/jsce.2019.161316.1739https://doaj.org/article/98eed7011c924970b836e5feb2768f252021-07-01T00:00:00Zhttps://www.jsce.ir/article_96678_c52bae941b08530d523297d44f4c431e.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Bridges are one of the major infrastructures of a country, which, in the event of severe seismic activity and the occurrence of collapse, can cause severe damage in different regions and create a severe crisis. Bridges with very long spans have always been a great challenge for engineers throughout history. Cable-stayed types of bridges are becoming more and more popular in the construction of long span bridges due to their advantages. A great number of cable stayed bridges in the world are located in the seismic zone and also near active faults so the effect of near field excitations on the seismic vulnerability of cable stayed bridges should be investigated probabilistically in accordance with far field excitations. Generation of vulnerability functions in the form of fragility curves is a common approach for assessing bridges seismic vulnerability. In this article, a set of analytical fragility curves for a case study cable stayed bridge (the Bill Emerson Bridge) are developed based on Incremental nonlinear dynamic analysis (IDA). The findings represent the effect of near fault excitations on the vulnerability of this long span bridge model. For example, the probability of a complete and extensive damage state for the considered cable stayed bridge in 1.5g for far field is 10 and 32 percent respectively, while in the near field, this value increases to about 19 and 44 percent, that indicates increase vulnerability of bridge in near field. The median values of seismic fragility for the considered bridge model decreased significantly in near field excitation in the Extensive and Complete damage states. The results can guide future regional risk assessments regarding the importance of including or neglecting near field excitations impacts on cable stayed bridge’s vulnerability.Hossein PahlavanAlireza Mirza Goltabar RoshanAli NaseriIranian Society of Structrual Engineering (ISSE)articleanalytical fragility curvesnear faultfar fieldbill emerson bridgecable stayed bridgesBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 8, Iss 5, Pp 148-162 (2021)
institution	DOAJ
collection	DOAJ
language	FA
topic	analytical fragility curves near fault far field bill emerson bridge cable stayed bridges Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	analytical fragility curves near fault far field bill emerson bridge cable stayed bridges Bridge engineering TG1-470 Building construction TH1-9745 Hossein Pahlavan Alireza Mirza Goltabar Roshan Ali Naseri Analytical Fragility Curves for Bridges Subjected to Near-Fault and Far-Field Ground Motion(Case Study: Bill Emerson Bridge)
description	Bridges are one of the major infrastructures of a country, which, in the event of severe seismic activity and the occurrence of collapse, can cause severe damage in different regions and create a severe crisis. Bridges with very long spans have always been a great challenge for engineers throughout history. Cable-stayed types of bridges are becoming more and more popular in the construction of long span bridges due to their advantages. A great number of cable stayed bridges in the world are located in the seismic zone and also near active faults so the effect of near field excitations on the seismic vulnerability of cable stayed bridges should be investigated probabilistically in accordance with far field excitations. Generation of vulnerability functions in the form of fragility curves is a common approach for assessing bridges seismic vulnerability. In this article, a set of analytical fragility curves for a case study cable stayed bridge (the Bill Emerson Bridge) are developed based on Incremental nonlinear dynamic analysis (IDA). The findings represent the effect of near fault excitations on the vulnerability of this long span bridge model. For example, the probability of a complete and extensive damage state for the considered cable stayed bridge in 1.5g for far field is 10 and 32 percent respectively, while in the near field, this value increases to about 19 and 44 percent, that indicates increase vulnerability of bridge in near field. The median values of seismic fragility for the considered bridge model decreased significantly in near field excitation in the Extensive and Complete damage states. The results can guide future regional risk assessments regarding the importance of including or neglecting near field excitations impacts on cable stayed bridge’s vulnerability.
format	article
author	Hossein Pahlavan Alireza Mirza Goltabar Roshan Ali Naseri
author_facet	Hossein Pahlavan Alireza Mirza Goltabar Roshan Ali Naseri
author_sort	Hossein Pahlavan
title	Analytical Fragility Curves for Bridges Subjected to Near-Fault and Far-Field Ground Motion(Case Study: Bill Emerson Bridge)
title_short	Analytical Fragility Curves for Bridges Subjected to Near-Fault and Far-Field Ground Motion(Case Study: Bill Emerson Bridge)
title_full	Analytical Fragility Curves for Bridges Subjected to Near-Fault and Far-Field Ground Motion(Case Study: Bill Emerson Bridge)
title_fullStr	Analytical Fragility Curves for Bridges Subjected to Near-Fault and Far-Field Ground Motion(Case Study: Bill Emerson Bridge)
title_full_unstemmed	Analytical Fragility Curves for Bridges Subjected to Near-Fault and Far-Field Ground Motion(Case Study: Bill Emerson Bridge)
title_sort	analytical fragility curves for bridges subjected to near-fault and far-field ground motion(case study: bill emerson bridge)
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2021
url	https://doaj.org/article/98eed7011c924970b836e5feb2768f25
work_keys_str_mv	AT hosseinpahlavan analyticalfragilitycurvesforbridgessubjectedtonearfaultandfarfieldgroundmotioncasestudybillemersonbridge AT alirezamirzagoltabarroshan analyticalfragilitycurvesforbridgessubjectedtonearfaultandfarfieldgroundmotioncasestudybillemersonbridge AT alinaseri analyticalfragilitycurvesforbridgessubjectedtonearfaultandfarfieldgroundmotioncasestudybillemersonbridge
_version_	1718441587941310464

Analytical Fragility Curves for Bridges Subjected to Near-Fault and Far-Field Ground Motion(Case Study: Bill Emerson Bridge)

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