Design and parameter analysis for new self-centering steel truss beam
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    Abstract:

    For the different position installation and different type of energy dissipation element for self-centering steel truss beam (SCSTB), the theoretical calculating formula of moment capacity and stiffness at end of beam are deducted corresponding to major points of their hysteretic curve when butterfly fuse is installed. Bending stiffness and energy dissipation capacity of SCSTB with butterfly fuse and bucking restrained energy dissipation bar are comparatively analyzed, and the plan of bucking restrained energy dissipation bar is optimal one. Area of prestressed bar, initial stress of prestressed bar, SC parameter are important parameters for evaluation of self-centering function and energy dissipation capacity; seismic behavior of SCSTB is researched by numerical analysis, on the basis of which, the range of optimum parameters is determined, and it can be used as a reference for the design of this component.

    Reference
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杨溥,沈培文,黄诚,洪基豪,杜方舟.新型自复位钢桁架梁的设计及参数分析[J].重庆大学学报,2019,42(1):25~35

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History
  • Received:July 05,2018
  • Online: January 16,2019
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