Numerical analysis on redundancy of continuous twin I-girder steel concrete composite bridges

Heang Lam*, Teruhiko Yoda, Weiwei Lin, Hideyuki Kasano, Haijie Ge

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

Redundancy is one of the most important factors to evaluate the safety of a bridge as it shows the possibility of the bridge to survive after an incident that can cause partial or full damage on the critical member of the bridge. The purpose of the present study is to evaluate redundancy level of three span continuous twin I-girder composite bridges, which is widely used in current highway bridges. Bridge models were studied and analyzed by using the finite element method with the aid of DIANA Software. Firstly, experimental results were used to verify the validity the present numerical model. Thereafter, fracture of one mid-span girder was assumed in order to determine the redundancy level of damaged bridge models. This study also shows the importance of secondary members in transferring and redistributing the load after the fracture at the mid-span of one main girder of the bridge.

Original languageEnglish
Title of host publicationLIFE-CYCLE OF STRUCTURAL SYSTEMS: DESIGN, ASSESSMENT, MAINTENANCE AND MANAGEMENT
EditorsH Furuta, DM Frangopol, M Akiyama
Pages738-745
Number of pages8
Publication statusPublished - 2015
MoE publication typeA4 Article in a conference publication
EventInternational Symposium on Life-Cycle Civil Engineering - Tokyo, Japan
Duration: 16 Nov 201419 Nov 2014
Conference number: 4

Conference

ConferenceInternational Symposium on Life-Cycle Civil Engineering
CountryJapan
CityTokyo
Period16/11/201419/11/2014

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