Redundancy of continuous two-girder steel-concrete composite highway bridges

Weiwei Lin, T. Yoda, T. Saigyo, K. Araki, Y. Kumagai

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

    1 Citation (Scopus)

    Abstract

    Post-fracture redundancy of the two-girder bridges is investigated through a case study of a three-span continuous twin I-girder bridge designed in Japan. The FE analysis is employed to evaluate the load-carrying capacity after the fracture of one main girder of the two-girder bridge. The critical locations include the mid-span section of the middle span, the side span, as well as the section near the continuous pier support. Besides, damage of studs near the moment contra-flexure regions in both middle and side spans are also considered in this study. Load-deflection response of the damaged bridge was compared with the intact bridge system, and the typical failure modes were described. Besides, the direct redundancy analysis results indicated that the present continuous twin-girder steel-concrete bridge can be classified as redundant. The concrete slab is considered as the significant member for redundancy of the two-girder steel-concrete composite bridges.

    Original languageEnglish
    Title of host publicationProceedings of the 13th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2013
    PublisherHokkaido University collection of Scholarly Academic Papers, HUSCAP
    Publication statusPublished - 2013
    Event13th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2013 - Sapporo
    Duration: 2013 Sep 112013 Sep 13

    Other

    Other13th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2013
    CitySapporo
    Period13/9/1113/9/13

    Keywords

    • Composite bridge
    • FEM
    • Post-fracture
    • Redundancy
    • Two-girder bridge

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Building and Construction

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