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Seismic Behavior of Shear Connectors of Steel Vierendeel Sandwich Plate

机译：钢铁型夹芯板剪切连接器的地震行为

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摘要

As a new type of floor structure, steel vierendeel sandwich plates are widely applied in large-span buildings with multiple storeys. Shear connectors are important stressed members of such plates. To evaluate the seismic performance of the shear connectors, a full-scale test piece in two different connection forms, namely, A and B, is designed and tested under alternating load. Test analysis of the two connection specimens covers the failure modes, hysteresis curves, and main parameters (e.g., bearing capacity, ductility, stiffness degradation, and energy dissipation coefficient). The following results concerning type A connection are obtained: First, it exhibits good ductility and long yielding platform; second, elastoplasticity of steel is fully exerted with it; third, it absorbs and dissipates energy well with strong energy consumption; and fourth, when failure occurs, cracks usually happen in the heat-affected zone of the weld in the core zone. The following conclusions about type B are drawn: first, it has large bearing capacity with high stiffness; also, when failure occurs, the ribbed stiffeners crack and flexion deformity happen.
机译：作为一种新型的楼层结构，钢铁vierendeel夹层板块广泛应用于具有多层楼的大跨度建筑物。剪切连接器是这种板材的重要应力构件。为了评估剪切连接器的地震性能，在交替负载下设计和测试了两种不同连接形式的全尺度试验片，即A和B。两种连接试样的测试分析覆盖了故障模式，滞后曲线和主要参数（例如，承载能力，延展性，刚度降解和能量耗散系数）。获得了关于类型连接的结果：首先，它表现出良好的延展性和长屈服平台;其次，钢的弹性塑料完全施加;第三，它吸收并消散能量良好的能量消耗;第四，当发生故障时，通常在核心区的焊缝的热影响区域中发生裂缝。关于B型的结论是绘制的：首先，它具有高刚度的大承载能力;此外，当发生故障时，罗纹加强筋裂纹和屈曲畸形发生。

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  • 来源
    《Mathematical Problems in Engineering》 |2019年第13期|8047393.1-8047393.14|共14页
  • 作者

    Jiang Lan; Ma Kejian; Zhang Huagang; Wu Qin; Lu Hongna; Yang Qizhu;

  • 作者单位

    Hunan Univ Coll Civil Engn Changsha 731 HN Peoples R China|China Three Gorges Univ Coll Elect Engn & New Energy Yichang 717 HB Peoples R China;

    Hunan Univ Coll Civil Engn Changsha 731 HN Peoples R China|Guizhou Univ Space Struct Res Ctr Guiyang 851 GZ Peoples R China;

    Guizhou Univ Space Struct Res Ctr Guiyang 851 GZ Peoples R China;

    Guizhou Univ Space Struct Res Ctr Guiyang 851 GZ Peoples R China;

    Guizhou Univ Space Struct Res Ctr Guiyang 851 GZ Peoples R China;

    Shaoyang Univ Coll Urban Construct Shaoyang 739 HN Peoples R China;

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