特殊环境下碳纤维增强材料锚杆粘结滑移试验研究及数值模拟

张鹏; 杨文瑞; 邓朗妮; 邓宇; 彭翰泽; 张恺

doi:10.13204/j.gyjz201211021

特殊环境下碳纤维增强材料锚杆粘结滑移试验研究及数值模拟

doi: 10.13204/j.gyjz201211021

1.
广西工学院土木建筑工程系,广西柳州 545006

基金项目:

国家自然科学基金资助项目(51168006);广西柳州市应用技术研究与开发计划项目(2010020603)

详细信息

作者简介:
张鹏,男,1967年出生,博士,教授。E－mail:gxutzp@126.com

中图分类号: TU472
计量
- 文章访问数: 127
- HTML全文浏览量: 5
- PDF下载量: 98
- 被引次数: 0
出版历程
- 修回日期: 2012-01-30
- 刊出日期: 2012-11-20

EXPERIMENTAL STUDY AND NUMERICAL SIMULATION OF CFRP ANCHOR BOND-SLIP UNDER THE SPECIAL ENVIRONMENT

1.
Department of Civil and Architecture Engineering,Guangxi University of Technology,Liuzhou 545006,China

摘要

摘要: 通过考虑酸、碱、盐、冻融循环环境影响后的碳纤维增强材料CFRP锚杆粘结性能试验,拟合不同环境粘结-滑移(-s)关系表达式;并基于试验参数,采用ANSYS非线性弹簧单元Combin 39模拟CFRP锚杆粘结单元,引用拟合-s关系曲线确定弹簧单元荷载-位移(F-S)关系参数;模拟分析与试验结果对比表明:由本试验拟合的-s关系曲线能很好地反映CFRP筋与环氧砂浆受特殊环境影响后粘结性能的变化。为经常处于特殊环境下的CFRP锚杆性能分析、设计理论及工程应用提供理论依据,也可为相关规范的编制和完善提供参考。
- 酸碱盐 /
- 冻融循环 /
- CFRP锚杆 /
- 粘结滑移关系拟合 /
- ANSYS数值模拟
Abstract: Through the CFRP anchor bond performance test after acid,alkali,salt,freeze-thaw cycle environmental impact,fitting different environment bond-slip relational expression and also based on the test parameters,CFRP anchor bond unit was simulated with nonlinear spring element Combin 39 of ANSYS．The fit -s curve was used for determining F-S relation parameters of the spring unit．The comparison between the simulation analysis and experimental results showed that the fit bond-slip relation curve could reflect well the CFRP reinforcement and epoxy mortar performance changes after acid,alkali,salt,freeze-thaw cycle environmental impact．Which provided a theoretical basis for performance analysis,design theory and engineering application of CFRP anchor under special environment,also provided a reference for compiling and perfecting relevant norms．
- acid,alkali and salt /
- freeze-thaw cycle /
- CFRP anchor /
- bond-slip relation /
- ANSYS numerical simulation