Proposal of strength equation for gusset plates subjected to compressive force in steel truss bridge

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  • Kasano Hideyuki
    Department of Civil Engineering, College of Engineering, Nihon University
  • Yoda Teruhiko
    Department of Civil and Environmental Engineering, Waseda University
  • Nogami Kuniei
    Department of Civil and Environmental Engineering, Tokyo Metropolitan University
  • Kishi Yusuke
    Department of Civil and Environmental Engineering, Tokyo Metropolitan University
  • Lin Weiwei
    Department of Civil and Environmental Engineering, Waseda University

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Gusset plates of a joint in a steel truss bridge are the key parts of the structure system, because they are connecting several main truss members. However, the detailed failure mode of gusset plates subjected to compression has not been well examined yet. Therefore, this paper discusses the failure mechanism of the gusset plates of a joint subjected to compressive force through the diagonal member. The failure mode is examined by both numerical and experimental method. And It is clearly shown that the failure mode demonstrated by these two methods are quite consistent with each other. Then, a strength equation for the gusset plates subjected to compression is finally created on the basis of the failure mode.

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