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首页> 外文期刊>Earthquake Engineering & Structural Dynamics >Subassemblage cyclic loading test of RC frame with buckling restrained braces in zigzag configuration
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Subassemblage cyclic loading test of RC frame with buckling restrained braces in zigzag configuration

机译：曲折配置的带有屈曲约束支撑的RC框架的子装配循环载荷试验

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摘要

A new buckling restrained braced frame system is proposed for reinforced concrete building structures, which is featured by the zigzag configuration of the braces and the corresponding connection details. The connection details tend to separate the vertical and horizontal components of force imposed by the braces to be resisted by independent structural components to make the behavior of the connection easier to estimate and control. The performance of the brace connection details was evaluated through cyclic load testing on 1/2-scale subassemblies of the proposed system, each of which consisted of a reinforced concrete part and a set of buckling restrained braces. To simplify the test control, the specimens were rotated 90° in the test and were loaded by two displacement controlled actuators. The test results show that the normal and the shear resistance of the gusset plate connection are essentially independent of each other. However, the rotation of the gusset plate with respect to the beam-to-column joint may result in nonuniform force distribution of the anchor bolts, the primary resistance for tensile force. At the same time, such rotation may also subject the concrete corbels, the primary shear resistance, to unfavorable tensile force. In addition, it is also confirmed that the buckling restrained braces performed well in the proposed system.
机译：提出了一种新的用于钢筋混凝土建筑结构的屈曲约束支撑框架系统，其特征是支撑的曲折形状和相应的连接细节。连接细节倾向于将由支架施加的力的垂直分量和水平分量分开，以由独立的结构分量抵抗，从而使连接的行为更易于估计和控制。支撑连接细节的性能是通过对所提议系统的1/2比例子组件进行周期性载荷测试而评估的，每个组件均由钢筋混凝土部件和一组屈曲约束支撑组成。为了简化测试控制，样品在测试中旋转了90°，并由两个位移控制的执行器加载。测试结果表明，角撑板连接的法向和抗剪强度基本相互独立。但是，角撑板相对于梁柱连接的旋转可能导致地脚螺栓的力分布不均匀，这是拉力的主要阻力。同时，这种旋转也可能使混凝土牛腿（主要的抗剪强度）受到不利的拉力。另外，还证实了在所提出的系统中屈曲约束支撑表现良好。

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  • 来源
    《Earthquake Engineering & Structural Dynamics》 |2013年第7期|1087-1102|共16页
  • 作者

    Zhe Qu; Shoichi Kishiki; Hiroyasu Sakata; Akira Wada; Yusuke Maida;

  • 作者单位

    Structural Engineering Research Center, Tokyo Institute of Technology, Nagatsuta, Midori, Yokohama, JP 226-8503;

    Department of Architecture, Osaka Institute of Technology, Omiya, Asahi-ku, Osaka, JP 535-8585;

    Structural Engineering Research Center, Tokyo Institute of Technology, Nagatsuta, Midori, Yokohama, JP 226-8503;

    Structural Engineering Research Center, Tokyo Institute of Technology, Nagatsuta, Midori, Yokohama, JP 226-8503;

    Department of Built Environment, Tokyo Institute of Technology, Nagatsuta, Midori, Yokohama, JP 226-8503;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    buckling restrained braced frame; reinforced concrete; subassemblage test;

    机译：屈曲约束支撑框架;钢筋混凝土子组合测试;

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