Mechanical behaviour of steel-concrete twin I-girder bridges

Weiwei Lin*, Heang Lam, Teruhiko Yoda


    研究成果: Conference contribution


    Steel-concrete composite twin l-girder bridges have been built a lot in both Europe and Japan, but the lack of redundancy has always been a concern in U.S. and many other countries. In addition, few experimental studies have been performed on the mechanical performance of such bridges, particularly for the intact bridges. On this background, a steel-concrete composite twin l-Girder bridge model was designed according to the current highway bridge design specification in Japan and tested in the laboratory. The static loading tests were performed, and two loading conditions including both symmetrical loading and unsymmetrical loading were applied. Load versus deflection relationships were measured in the loading test, and the failure mode of the test specimen was discussed. The flexural strain development on bottom flanges of two main girders was also reported in this paper to confirm the load transfer between two main girders. In addition, the theoretical results on the basis of the classic theory were also provided to compare with the test results. The comparison indicates that the theoretical analyses can predict the behaviour of the twin l-girder bridges very well in the elastic stage by considering the effective width of the slab. The load transfer paths in such bridges were also discussed on the basis of the test results under un-symmetrical loading.

    ホスト出版物のタイトルIABSE Conference, Kuala Lumpur 2018
    ホスト出版物のサブタイトルEngineering the Developing World - Report
    出版社International Association for Bridge and Structural Engineering (IABSE)
    出版ステータスPublished - 2018 1月 1
    イベントIABSE Conference, Kuala Lumpur 2018: Engineering the Developing World - Kuala Lumpur, Malaysia
    継続期間: 2018 4月 252018 4月 27


    OtherIABSE Conference, Kuala Lumpur 2018: Engineering the Developing World
    CityKuala Lumpur

    ASJC Scopus subject areas

    • 土木構造工学
    • 建築および建設


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