Effect of nonlinearity of restrainer and supports on the elasto-plastic seismic response of continuous girder bridge

During an earthquake, the nonlinearity of the bridge structure mainly occurs at the supports, bridge piers and restrainers. When entering nonlinear stage, members of the bridge structure affect the elasto-plastic seismic response of the whole structure to a certain extent; for multi-span continuou...

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Main Authors: Wang Changfeng, Zhu Long, Chen Xingchong
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2014-10-01
Series:Fracture and Structural Integrity
Subjects:
Online Access:http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_59.pdf
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author Wang Changfeng
Zhu Long
Chen Xingchong
author_facet Wang Changfeng
Zhu Long
Chen Xingchong
author_sort Wang Changfeng
collection DOAJ
description During an earthquake, the nonlinearity of the bridge structure mainly occurs at the supports, bridge piers and restrainers. When entering nonlinear stage, members of the bridge structure affect the elasto-plastic seismic response of the whole structure to a certain extent; for multi-span continuous bridges, longitudinal restrainers can be installed on the movable piers to optimise the distribution of seismic force and enable the movable piers to bear a certain amount of seismic effect. In order to evaluate the effect of nonlinearity of restrainer and supports on the elasto-plastic seismic response of continuous girder bridge, analytical models of continuous girder bridge structure considering the nonlinearity of movable supports, restrainers and bridge piers were built and the nonlinear time history analysis was conducted to evaluate the effect of nonlinearity of restraining devices and supports on the elasto-plastic seismic response of continuous girder bridge. Relevant structural measures and recommendation were made to reduce the seismic response of the fixed piers of the continuous girder bridge.
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spelling doaj-art-910dee61387e4c6d85d9543546b7fd8e2025-01-03T00:39:31ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932014-10-0183048649410.3221/IGF-ESIS.30.59Effect of nonlinearity of restrainer and supports on the elasto-plastic seismic response of continuous girder bridgeWang Changfeng0Zhu Long1Chen Xingchong2School of Civil Engineering, Yantai University, Yantai, ChinaSchool of Civil Engineering, Lanzhou Jiaotong University, Lanzhou, ChinaSchool of Civil Engineering, Lanzhou Jiaotong University, Lanzhou, ChinaDuring an earthquake, the nonlinearity of the bridge structure mainly occurs at the supports, bridge piers and restrainers. When entering nonlinear stage, members of the bridge structure affect the elasto-plastic seismic response of the whole structure to a certain extent; for multi-span continuous bridges, longitudinal restrainers can be installed on the movable piers to optimise the distribution of seismic force and enable the movable piers to bear a certain amount of seismic effect. In order to evaluate the effect of nonlinearity of restrainer and supports on the elasto-plastic seismic response of continuous girder bridge, analytical models of continuous girder bridge structure considering the nonlinearity of movable supports, restrainers and bridge piers were built and the nonlinear time history analysis was conducted to evaluate the effect of nonlinearity of restraining devices and supports on the elasto-plastic seismic response of continuous girder bridge. Relevant structural measures and recommendation were made to reduce the seismic response of the fixed piers of the continuous girder bridge.http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_59.pdfRestraining devicesSupportsElasto-plastic seismic response
spellingShingle Wang Changfeng
Zhu Long
Chen Xingchong
Effect of nonlinearity of restrainer and supports on the elasto-plastic seismic response of continuous girder bridge
Fracture and Structural Integrity
Restraining devices
Supports
Elasto-plastic seismic response
title Effect of nonlinearity of restrainer and supports on the elasto-plastic seismic response of continuous girder bridge
title_full Effect of nonlinearity of restrainer and supports on the elasto-plastic seismic response of continuous girder bridge
title_fullStr Effect of nonlinearity of restrainer and supports on the elasto-plastic seismic response of continuous girder bridge
title_full_unstemmed Effect of nonlinearity of restrainer and supports on the elasto-plastic seismic response of continuous girder bridge
title_short Effect of nonlinearity of restrainer and supports on the elasto-plastic seismic response of continuous girder bridge
title_sort effect of nonlinearity of restrainer and supports on the elasto plastic seismic response of continuous girder bridge
topic Restraining devices
Supports
Elasto-plastic seismic response
url http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_59.pdf
work_keys_str_mv AT wangchangfeng effectofnonlinearityofrestrainerandsupportsontheelastoplasticseismicresponseofcontinuousgirderbridge
AT zhulong effectofnonlinearityofrestrainerandsupportsontheelastoplasticseismicresponseofcontinuousgirderbridge
AT chenxingchong effectofnonlinearityofrestrainerandsupportsontheelastoplasticseismicresponseofcontinuousgirderbridge