纤维增强材料绑扎胶结复合连接节点及其力学性能的研究

张保龙; 吴刚; 纪卫尚

doi:10.13204/j.gyjz201306008

纤维增强材料绑扎胶结复合连接节点及其力学性能的研究

doi: 10.13204/j.gyjz201306008

1.
1. 东南大学土木工程学院,南京210096;
2.
2. 江苏省电力设计院,南京211102

基金项目:

国家高技术研究发展计划(863计划)(2012AA03A204);中日国际合作项目(2012DFG20510);国家自然科学基金(51078077)

详细信息

作者简介:
第一作者：张保龙, 男, 1988年出生, 研究生。电子信箱：g.wu@seu.edu.cn

中图分类号: TU599
计量
- 文章访问数: 122
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- 被引次数: 0
出版历程
- 收稿日期: 2013-02-10
- 刊出日期: 2013-06-20

STUDY ON THE MECHANICAL PROPERTIES OF BINDING-ADHESIVE JOINTS APPLIED TO FRP COMPOSITES

1.
1. School of Civil Engineering,Southeast University,Nanjing 210096,China;
2.
2. Jiangsu Electric Power Design Institute,Nanjing 211102,China

摘要

摘要: 针对纤维增强复合材料(FRP)型材在土建交通领域应用中出现的接头效率低、质量无法保证等缺陷，提出了一种新型FRP型材连接节点：绑扎胶结复合连接节点。通过对该种新型连接节点进行试验，并设置了螺栓节点、胶结节点等对比试验，证明了绑扎胶结复合连接节点具有很高的接头效率，其承载力是螺栓连接节点的3.8倍、胶结连接节点的3.5倍。总结对比了各节点破坏形式，发现传统连接节点发生节点区脆性破坏，而绑扎胶结复合连接节点发生母材破坏，且破坏有一定的延性。根据试验中得到的荷载-位移曲线，对比分析了3种连接节点的刚度、延性等异同点。根据试验现象及结果分析了绑扎胶结复合连接节点的工作机理。
- FRP拉挤型材 /
- 新型连接节点 /
- 荷载-位移曲线 /
- 工作机理
Abstract: Aimed at the low joint efficiency arising from the unidirectional pultruded fiber composites application to civil and transportation field, it was put forward a new type of joint of FRP composite:binding-adhesive joints.Experiments were conducted on three types of joints, including binding-adhesive joints, bolt joints and adhesive joints.The experimental results proved that binding-adhesive joints had a high joint efficiency factor;the bearing capacity was 3.8 times of the bolt joints, 3.5 times of the adhesive joints.Based on the load-displacement curve obtained from experiments, a comparative analysis of stiffness and ductility of the three types of joints was made.According to the experimental phenomena and results, the analysis of the working mechanism of binding-adhesive joints was made.
- unidirectional pultruded FRP composites /
- new type of joint /
- load-displacement curve /
- workingmechanism