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Shear bearing of cross-plate joints between diaphragm wall panels - I: model tests and shear behaviour

机译:隔板墙面板之间的交叉板连接的抗剪承载力-I:模型测试和剪切行为

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摘要

This paper, the first part of two companion papers, describes a test programme involving seven specimens and experiments to investigate the effect of three main design parameters of longitudinal steel plates in cross-plate joints on the shear capacity. The load-displacement relationship, cracking of the concrete and strain of the longitudinal steel plate were experimentally measured. It was found that the failure modes of the specimens can be categorised into two types - concrete crushing and steel plate yielding. The failure mode is mainly affected by the relative stiffness of the cross-plate joints, while the ultimate shear load is primarily influenced by the number and area ratio of holes in the longitudinal plates. The paper shows that the available analytical expression for the shear capacity of rib shear connectors cannot be readily applied to cross-plate joints, and therefore further investigations should be conducted to develop a new shear capacity prediction formula for cross-plate joints. This experimental study on the performance of concrete diaphragm walls with cross-plate joints sheds light on the shear failure behaviour of diagram walls and provides some benchmark data for numerical analysis and development of empirical design formulae.
机译:本文是两篇配套论文的第一部分,描述了一个包含七个样本的测试程序和实验,以研究横板节点中纵向钢板的三个主要设计参数对剪切能力的影响。实验测量了载荷-位移关系,混凝土开裂和纵向钢板的应变。结果表明,试样的破坏模式可以分为两种类型:混凝土破碎和钢板屈服。破坏模式主要受横板节点相对刚度的影响,而极限剪切载荷主要受纵板上孔的数量和面积比的影响。本文表明,肋式抗剪连接器的抗剪承载力的可用分析表达式无法轻易应用于横板节点,因此应进行进一步研究,以开发出一种新的横剪节点抗剪承载力预测公式。这项关于跨板节点混凝土隔板墙性能的实验研究为图墙的剪切破坏行为提供了启示,并为数值分析和经验设计公式的开发提供了一些基准数据。

著录项

  • 来源
    《Magazine of Concrete Research》 |2016年第18期|902-915|共14页
  • 作者单位

    Shanghai Jiao Tong Univ, Dept Civil Engn, Shanghai, Peoples R China;

    Shanghai Jiao Tong Univ, Dept Civil Engn, Shanghai, Peoples R China;

    Shanghai Jiao Tong Univ, Dept Engn Mech, Shanghai, Peoples R China|Washington State Univ, Dept Civil & Environm Engn, Pullman, WA 99164 USA;

    Shanghai Tunnel Engn Co Ltd, Shanghai, Peoples R China;

    Ninth Design & Res Inst CSSC, Shanghai, 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

    joints; shear; testing, structural elements;

    机译:接头;剪切;测试;结构元素;

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