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首页> 外文期刊>Advances in Structural Engineering >Experimental investigation on joints between steel-reinforced concrete T-shaped column and reinforced concrete beam under bidirectional low-cyclic reversed loading
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Experimental investigation on joints between steel-reinforced concrete T-shaped column and reinforced concrete beam under bidirectional low-cyclic reversed loading

机译：双向低周反复荷载下钢筋混凝土T形柱与钢筋混凝土梁节点的试验研究。

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摘要

Steel-reinforced concrete T-shaped column-beam structure system has superiorities of both steel-reinforced structure and special-shaped column structure. This research focuses on steel-reinforced concrete T-shaped column-beam joint design and experimentally investigates seismic behaviors of the proposed joints. Pseudo-static tests are carried out on three steel-reinforced concrete T-shaped column-reinforced concrete beam joints and one reinforced concrete T-shaped column-reinforced concrete beam joint. The experiments were conducted under bidirectional low-cyclic reversed loading to simulate realistic loading conditions under earthquake. Hysteresis loops of all the specimens, including load-deflection, moment-rotation, and load-shear deformation loops, are plotted for the evaluation of seismic reaction. The working index, ductility coefficient, and equivalent viscous-damping coefficient are calculated for comparisons. Meanwhile, the ductility, capacity of energy dissipation, stiffness degradation, and the function of steel reinforcement in resisting shear force in the joint core area are intensively studied. Based on experimental results, this research analyzes shear-resistant capacity and the inner force transmission in these joints. It is found that the steel-reinforced concrete T-shaped column-reinforced concrete beam joint performs well under seismic conditions; moreover, shear-resistant capacity, ductility, and reliability are satisfactory. Conclusions derived from this research are useful for engineering practice.
机译：钢骨混凝土T形柱梁结构体系具有钢结构和异形柱结构的优势。这项研究的重点是钢筋混凝土T形柱-梁节点设计，并通过实验研究了拟建节点的抗震性能。对三个钢筋混凝土T形柱式钢筋混凝土梁节点和一个钢筋混凝土T形柱式钢筋混凝土梁节点进行了拟静力试验。实验是在双向低周期反向荷载下进行的，以模拟地震中的实际荷载条件。绘制了所有样本的磁滞回线，包括荷载-挠度，弯矩-旋转和荷载-剪切变形曲线，以评估地震反应。计算工作指数，延性系数和等效粘性阻尼系数以进行比较。同时，深入研究了延展性，能量耗散能力，刚度降低以及钢筋在接头核心区域抵抗剪切力的作用。基于实验结果，本研究分析了这些接头的抗剪承载力和内力传递。结果表明，在地震条件下，钢筋混凝土T型柱钢筋混凝土梁节点性能良好。此外，抗剪切能力，延展性和可靠性令人满意。这项研究得出的结论对于工程实践很有用。

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  • 来源
    《Advances in Structural Engineering》 |2017年第3期|446-460|共15页
  • 作者

    Xiang Ping; Deng Z. H.; Su Y. S.; Wang H. P.; Wan Y. F.;

  • 作者单位

    Guangxi Univ, Coll Civil Engn & Architecture, 100 Univ Rd, Nanning 530004, Guangxi, Peoples R China|City Univ Hong Kong, Dept Architecture & Civil Engn, Kowloon, Hong Kong, Peoples R China;

    Guangxi Univ, Coll Civil Engn & Architecture, 100 Univ Rd, Nanning 530004, Guangxi, Peoples R China;

    Guangxi Univ, Coll Civil Engn & Architecture, 100 Univ Rd, Nanning 530004, Guangxi, Peoples R China;

    Hong Kong Polytech Univ, Dept Civil & Environm Engn, Kowloon, Hong Kong, Peoples R China;

    Guangxi Univ, Coll Civil Engn & Architecture, 100 Univ Rd, Nanning 530004, Guangxi, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    joint; low-cyclic reversed loading; seismic behavior; steel-reinforced concrete T-shaped column;

    机译：节理;低周向反向荷载;抗震性能;钢筋混凝土T形柱;

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