Structural characteristics of box girder bridge with strutted wing slabs

Kimio Saito, Teruhiko Yoda, Jun Yamazaki, Atsushi Homma

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

    Abstract

    Concrete box girder bridges whose wing slabs are supported by struts have been constructed since early 2000’s in Japan. This girder type has been mainly applied to highway bridges for New Tomei Expressway. On the other hand, dozens of bridges with this girder type have been constructed since 1970’s in Europe. It is said that weight of superstructure can be reduced by applying this girder type when the bridge decks are wide. Although the advantages of this girder type are known as above, the structural characteristics of this girder are not thoroughly revealed yet since the past examples are still limited. The authors investigate the structural characteristics of the box girder with strutted wing slabs in terms of weight reduction through a comparison with other girder types, which have been applied to bridges constructed for New Tomei Expressway. The compared girder types include multi-cell box girder, single-cell box girder and box girder with ribbed slabs. The authors also investigate applicable width of the box girder with strutted wing slabs through a case study and quantitative comparison. It is concluded that box girder with strutted wing slabs is most effective for weight reduction of superstructure among the compared girder types. Even the superstructure weight of 2-lane highway bridges can be reduced by applying box girder with strutted wing slabs.

    Original languageEnglish
    Title of host publicationProceedings of the 11th fib International PhD Symposium in Civil Engineering, FIB 2016
    PublisherA.A. Balkema Publishers
    Pages173-180
    Number of pages8
    ISBN (Electronic)9784990914806
    Publication statusPublished - 2016
    Event11th fib International PhD Symposium in Civil Engineering, FIB 2016 - Tokyo, Japan
    Duration: 2016 Aug 292016 Aug 31

    Other

    Other11th fib International PhD Symposium in Civil Engineering, FIB 2016
    CountryJapan
    CityTokyo
    Period16/8/2916/8/31

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    ASJC Scopus subject areas

    • Civil and Structural Engineering

    Cite this

    Saito, K., Yoda, T., Yamazaki, J., & Homma, A. (2016). Structural characteristics of box girder bridge with strutted wing slabs. In Proceedings of the 11th fib International PhD Symposium in Civil Engineering, FIB 2016 (pp. 173-180). A.A. Balkema Publishers.