Experimental and numerical studies on post-facture behavior of simply supported composite twin I-girder bridges

Heang Lam, Weiwei Lin, Teruhiko Yoda

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    This study is carried out to investigate the post-fracture behavior of the composite twin I-girder bridge systems. In the experimental program, one intact specimen and one damage specimen were tested under static load with displacement control method. Different cases of fractures are performed in numerical analyses based on finite element method and nonlinear analyses. Significant reduction of system stiffness and load carrying capacity is observed in post-fracture condition. The failure modes of both intact and damage specimen are governed by the crush of the concrete slab. Nevertheless, composite twin I-girder bridge system will not collapse under dead load and be able to carry a certain level of live load. Numerical analyses for different damage conditions proved that the fracture at mid-span section is the most fracture critical location for composite twin I-girder bridge system.

    Original languageEnglish
    Title of host publicationIABSE Conference, Vancouver 2017
    Subtitle of host publicationEngineering the Future - Report
    PublisherInternational Association for Bridge and Structural Engineering (IABSE)
    Pages206-213
    Number of pages8
    ISBN (Electronic)9783857481536
    Publication statusPublished - 2017 Jan 1
    Event39th IABSE Symposium in Vancouver 2017: Engineering the Future - Vancouver, Canada
    Duration: 2017 Sep 212017 Sep 23

    Other

    Other39th IABSE Symposium in Vancouver 2017: Engineering the Future
    CountryCanada
    CityVancouver
    Period17/9/2117/9/23

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    Keywords

    • Composite twin I-girder bridge
    • Fracture critical location
    • Post-fracture behavior

    ASJC Scopus subject areas

    • Building and Construction
    • Civil and Structural Engineering

    Cite this

    Lam, H., Lin, W., & Yoda, T. (2017). Experimental and numerical studies on post-facture behavior of simply supported composite twin I-girder bridges. In IABSE Conference, Vancouver 2017: Engineering the Future - Report (pp. 206-213). International Association for Bridge and Structural Engineering (IABSE).