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Analysis of laterally loaded exterior wide beam-column connections

机译：横向加载的外部宽梁柱连接分析

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摘要

Most of the current design codes of practice allow the use of reinforced-concrete moment frames with wide beams in regions of high seismicity. These design codes prescribe beam-width limitations and special reinforcement details to minimise the lag in the formation of full-width plastic hinges. However, due to insufficient experimental and analytical studies, empirical design formulas for beam-width limitation, with remarkable differences, have been implemented in these codes. In this paper, an effective beam-width model of exterior wide beam-column connections is analytically developed using the equivalent-frame model representation, where the effect of torsion of transverse beams and flexure around the joint core is considered. The validity of the model is verified using flexural strength predictions of previously published tests in the literature, covering a wide range of design parameters. Combining the proposed effective beam-width model and the rational, analytical approach, a formula is presented for determining the beam-width limitation of exterior wide beam-column connections. For convenient application in practical design, the proposed beam-width limitations of both exterior (derived in this paper) and interior connections (previously derived by the authors) are further simplified, and the relevant design curves and charts are presented.
机译：当前大多数设计规范允许在高地震活动区使用宽梁的钢筋混凝土矩型框架。这些设计规范规定了束宽限制和特殊的加固细节，以最大程度地减少全宽塑料铰链形成过程中的滞后。但是，由于缺乏足够的实验和分析研究，因此在这些规范中实施了束宽限制的经验设计公式，但存在明显差异。在本文中，使用等效框架模型表示法分析了外部宽梁-柱连接的有效梁宽度模型，其中考虑了横梁的扭转和节点核心周围挠曲的影响。使用文献中先前公布的测试的抗弯强度预测验证了模型的有效性，该测试涵盖了广泛的设计参数。结合提出的有效梁宽度模型和合理的分析方法，提出了确定外部宽梁柱连接的梁宽度限制的公式。为了方便在实际设计中的应用，进一步简化了建议的外部（本文推导）和内部连接（作者先前推导）的束宽限制，并给出了相关的设计曲线和图表。

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  • 来源
    《Magazine of Concrete Research》 |2018年第10期|500-511|共12页
  • 作者

    Behnam Hamdolah; Kuang J. S.; Wong Ho Fai; Huang Qunxian; Al-Mahaidi Riadh;

  • 作者单位

    Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Hong Kong, Hong Kong, Peoples R China;

    Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Hong Kong, Hong Kong, Peoples R China;

    Technol & Higher Educ Inst Hong Kong, Dept Construct Technol & Engn, Hong Kong, Hong Kong, Peoples R China;

    Huaqiao Univ, Coll Civil Engn, Xiamen, Peoples R China;

    Swinburne Univ Technol, Dept Civil & Construct Engn, Smart Struct Lab, Melbourne, Vic, Australia;

  • 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; load transfer; torsion;

    机译：接头;载荷传递;扭转;

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