• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Tubular structures XII >Experimental study on SCFs of welded CHS-to-concrete filled CHS T-joints under axial loading and in-plane bending
【24h】

Experimental study on SCFs of welded CHS-to-concrete filled CHS T-joints under axial loading and in-plane bending

机译：CHS-混凝土填充CHS T型接头焊接轴向应力和面内弯曲时的SCF试验研究

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The present paper deals with an experimental investigation of the hot spot stress distributions and Stress Concentration Factors (SCFs) of welded T-joints composed of Circular Hollow Section (CHS) braces and Concrete Filled Circular Hollow Section (CFCHS) chords under tensile and compressive axial loadings and in-plane bending on the braces respectively, which is foundation for fatigue assessment of the joints. Static tests were performed on ten test specimens with different non-dimensional geometric parameters and concrete grades. The test results have been statistically interpreted, and indicate that the CHS-to-CFCHS T-joints exhibited evident improvement in rigidity and reduction in SCFs around the joints under the three loading conditions when compared with joints made of CHS. The difference in hot spot stresses between linear and quadratic extrapolation was slight for CFCHS chords and obvious for CHS braces. In addition, the CHS-to-CFCHS joints were found to have higher SCFs on chords under axial tension than under axial compression and SCFs at tension-side chord crowns were a little higher than those at compression-side chord crowns under in-plane bending.
机译：本文研究了在拉伸和压缩轴向力作用下，由圆形空心截面（CHS）支撑和混凝土实心圆形空心截面（CFCHS）弦组成的焊接T型接头的热点应力分布和应力集中因子（SCF）的实验研究。支撑分别承受最大载荷和平面弯曲，这是评估关节疲劳的基础。对十个具有不同无量纲几何参数和混凝土等级的试样进行了静态测试。测试结果已经过统计解释，表明与CHS制成的接头相比，CHS到CFCHS的T接头在三种载荷条件下在接头周围的刚性和SCF降低方面均表现出明显的改善。对于CFCHS和弦，线性和二次外推之间的热点应力差异很小，而对于CHS支撑，则明显。另外，发现CHS-CFCHS接头在轴向拉力下的弦比在轴向压缩下具有更高的SCF，而在拉力侧弦顶的SCF比在面内弯曲下压侧弦冠的SCF稍高。 。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号