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首页> 外文期刊>Advances in civil engineering >Experimental Study on Structural Performance of RC Exterior Beam-Column Joints Retrofitted by Steel Jacketing and Haunch Element under Cyclic Loading Simulating Earthquake Excitation
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Experimental Study on Structural Performance of RC Exterior Beam-Column Joints Retrofitted by Steel Jacketing and Haunch Element under Cyclic Loading Simulating Earthquake Excitation

机译：循环荷载模拟地震激励下钢夹套加吊装单元改造钢筋混凝土外梁柱节点结构性能试验研究

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摘要

Several retrofitting methods for reinforced concrete (RC) beam-column joints in old buildings without seismic details were developed. Four half-scale RC exterior beam-column joints were fabricated and tested under cyclic loading simulating earthquake excitation. The control specimen was designed to fail in joint shear. Two practical retrofitting strategies were applied to the control specimen which consider the architectural characteristic in real buildings, including steel jacketing and haunch retrofit solution. The structural performance of the test specimens was investigated in terms of various factors including damage and failure, load-drift relationship, ductility, dissipated energy, and strain profiles of longitudinal reinforcement. Experimental results confirmed that the proposed retrofit methods were shown to enhance the seismic capacity of the joints in terms of the strength, deformation capacity, and energy dissipation capacity while the shear deformation in the panel zone significantly reduced in comparison with the control specimen.
机译：开发了几种在没有地震细节的情况下对钢筋混凝土（RC）梁柱节点进行改造的方法。制作了四个半比例尺钢筋混凝土外部梁柱节点，并在模拟地震激励的循环荷载下进行了测试。对照标本被设计为在联合剪切中失效。考虑到实际建筑的建筑特征，对控制标本应用了两种实用的改造策略，包括钢套和直立式改造解决方案。根据各种因素对试样的结构性能进行了研究，包括破坏和破坏，载荷-漂移关系，延展性，耗散能量和纵向钢筋的应变曲线。实验结果证实，所提出的改型方法显示出在强度，变形能力和能量耗散能力方面提高了节点的抗震能力，而与对照组相比，面板区域的剪切变形显着减少。

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  • 来源
    《Advances in civil engineering》 |2017年第2017期|9263460.1-9263460.11|共11页
  • 作者

    Cong-Thuat Dang; Ngoc-Hieu Dinh;

  • 作者单位

    The University of Danang: University of Science and Technology, Da Nang Vietnam;

    The University of Danang: University of Science and Technology, Da Nang Vietnam;

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