咬合式高强螺栓连接抗剪承载力试验和数值模拟
作者:
作者单位:

同济大学土木工程学院,同济大学土木工程学院,同济大学土木工程学院,同济大学土木工程学院,同济大学土木工程学院

作者简介:

通讯作者:

中图分类号:

TU395

基金项目:

国家自然科学基金项目(51478335)


Experimental Research and Numerical Simulation of Bearing Capacity of a New Type of Occlusive High Strength Bolt Shear Connection
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    在传统高强螺栓连接的基础上,研发了新型咬合式高强螺栓连接.进行了4个传统高强螺栓连接和14个咬合式高强螺栓连接的抗剪承载力试验,详细介绍了试验过程,描述了试验现象.试验结果表明,咬合式高强螺栓连接的破坏模式主要为板件错动破坏;连接板表面刨槽处理可大幅提高连接承载力;螺栓预紧力越大,连接承载力越高;连接板的刨槽深度越大,连接承载力越高.建立了有限元模型,将数值分析获得的破坏模式、荷载位移曲线与试验结果进行比较,验证了二者的一致性,表明数值模型可用于后续大规模数值分析.

    Abstract:

    Based on the conventional high strength bolt connection, a new occlusive high strength bolt shear connection was developed. Shear bearing capacity experiment of 4 conventional high strength bolt connections and 14 occlusive high strength bolt connections was conducted. The experimental process and the collapse phenomena were introduced and described in detail. It is found that the failure mode of occlusive high strength bolt connection is mainly the dislocation of plates. Grooving on plates could effectively increase the loadbearing capacity of the connection. Moreover, the capacity of the connection increases as the bolt pretension and the depth of grooves increase. A finite element model (FEM) was established, and the failure mode and the loaddeformation curves of the connection was simulated. It is indicated that the FEM is effective because of good agreements between the results of the experiment and that of numerical model. Thus, it is believed that the established FEM could be used to execute the subsequent numerical analyses.

    参考文献
    相似文献
    引证文献
引用本文

郭小农,章颜,蒋首超,熊哲.咬合式高强螺栓连接抗剪承载力试验和数值模拟[J].同济大学学报(自然科学版),2017,45(04):0472~0480

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2016-02-27
  • 最后修改日期:2017-02-16
  • 录用日期:2017-02-08
  • 在线发布日期: 2017-04-28
  • 出版日期: