基于Tsai-Wu准则的CFRP拉索黏结型锚具仿真分析  

Simulation Analysis on Adhesive Anchorage of CFRP Cables Based on Tsai-Wu Criterion

作　　者：李扬 贾丽君[2] LI Yang;JIA Lijun(Shanghai Municipal Engineering Design Institute(Group)Co.,Ltd.,Shanghai 200092,China;School of Civil Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]上海市政工程设计研究总院(集团)有限公司,上海200092 [2]同济大学土木工程学院,上海200092

出　　处：《重庆交通大学学报（自然科学版）》2020年第1期60-66,共7页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：国家自然科学基金项目(51878488);国家重点基础研究发展计划(973计划)资助项目(2013CB036303);上海市自然科学基金项目(18ZR1441700)

摘　　要：为了深入研究碳纤维增强树脂(CFRP)拉索黏结型锚具的合理设计参数,首先介绍了复合材料的Tsai-Wu失效准则,并在此基础上提出了关于CFRP拉索黏结型锚具的仿真分析方法。然后利用该方法对CFRP拉索黏结型锚具的锚固性能指标进行了参数分析,结果表明:通过优化锚杯总长度、直筒段长度、内锥段倾角、CFRP筋与锚杯间距,并在锚杯与环氧树脂之间全程布置薄膜,可显著改善锚具的受力性能。In order to further study the proper design parameters of the adhesive anchorage for carbon fiber reinforced polymer( CFRP) cables,the Tsai-Wu failure criterion of composite material was introduced firstly,and the simulation analysis method of the adhesive anchorage for CFRP cables was proposed. Then,a parametric study on the anchorage performance indexes of adhesive anchorage for CFRP cables was conducted by use of the proposed method. The results show that the mechanical properties of the anchorage can be significantly improved by optimizing the total length of the anchor cup,the length of the straight tube section,the inclination angle of the inner cone section,the interval between CFRP bars and anchor cup,and by setting films between anchor cup and epoxy resin.

关 键 词：桥梁工程 碳纤维 CFRP 锚具 参数分析 

分 类 号：U442[建筑科学—桥梁与隧道工程] U444[交通运输工程—道路与铁道工程]