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Re-evaluation of seismic capacity of interior beam-column joints

机译：重新评估内部梁柱节点的抗震能力

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摘要

In spite of the fact that a wide variety of tests on joints of both interior and exterior types have been carried out since the 1960 s, there is no unique design philosophy common to different codes in the world. This is possibly due to the different interpretations of tests as well as test specimens with different demands. This study gives the preliminary findings of the investigations on the factors that effect the performance of interior joints under seismic loads. The authors inspected an experimental database by bringing different tests from different countries together. The database consisted of interior joints which are under uniaxial and biaxial seismic loading and specimens subject to vertical and horizontal acceleration. The experimental database includes tests from different countries such as New Zealand, Japan, the United States as well as the United Kingdom. The results of the parametric studies showed that concrete cylinder strength increased the joint shear strength, while the column axial load had no influence on the joint shear strength of cyclically loaded interior beam column connections. The authors also investigated the influence of joint aspect ratio. The results showed that as the joint aspect ratio is increased, the joint shear strength decreases. The authors examined the tests with respect to the countries. As a successful design is characterized by a failure mode in the beam, the authors are in the opinion that the most successful results were achieved by Japanese and New Zealand tests, as most of them failed in the beam. The authors inspection of the influence of stirrups on the joint shear strength showed that neither the stirrups nor the stirrup index influenced the joint shear strength but loading history was more influential in increasing the shear resistance of joints.
机译：尽管自1960年代以来已对内外型接头进行了各种各样的测试，但世界上尚无通用的独特设计哲学。这可能是由于对测试的不同解释以及具有不同要求的测试样本。这项研究为影响地震荷载下内部节点性能的因素研究提供了初步的发现。作者通过汇集来自不同国家的不同测试来检查实验数据库。该数据库由承受单轴和双轴地震荷载的内部节点以及承受垂直和水平加速度的样本组成。实验数据库包括来自不同国家（例如新西兰，日本，美国和英国）的测试。参数研究的结果表明，混凝土圆柱体的强度增加了接缝的抗剪强度，而柱的轴向载荷对循环荷载的内梁柱连接的接缝的抗剪强度没有影响。作者还研究了关节长宽比的影响。结果表明，随着接头长宽比的增加，接头的剪切强度降低。作者检查了有关国家的测试。由于成功的设计以梁的破坏模式为特征，因此作者认为，最成功的结果是通过日本和新西兰的测试获得的，因为其中大多数都在梁中失效。作者检查了箍筋对接头抗剪强度的影响，结果表明箍筋和箍筋指数均不影响接头抗剪强度，但加载历史对增加接头的抗剪强度影响更大。

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  • 来源
    《》|2001年|p.111-120|共10页
  • 会议地点 Malaga(ES);Malaga(ES)
  • 作者

    P.G. Bakir; H.M. Boduroglu;

  • 作者单位

    Civil Engineering Department, Istanbul Technical University, Turkey;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 Tu;
  • 关键词

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