铁道科学与工程学报2016，Vol.13Issue(4)：639-647,9.
复杂环境下CFRP-高强混凝土界面性能有限元分析
Finite element analysis on the interfacial properties of high-strength concrete strengthened with CFRP under complex environmental conditions
摘要
Abstract
This paper conducted a numerical simulation about the double-sided shear test,made a finite ele-ment analysis about the interfacial bond performance between CFRP and high strength concrete under coupling function of sustaining load and freeze-thaw cycle,coupling function of sustaining load and dry-wet cycle.The simulation results were compared with the experimental results.Freeze -thaw cycle and dry -wet cycle both damage the interfacial bond performance.With the increase of freeze-thaw cycles,specimen limit load and ulti-mate end of the interface bond-slip decreases,continuous load can make the damage degree increased.On the basis of correctness about the result of simulation,a further analysis about the change rule of the damage form of specimens was made.Specimens failed from concrete shearing failures under the function of freeze-thaw cycle. Failure mode was changed by the shift to adhesive failure between resin and concrete from concrete shearing fail-ures when the dry-wet cycle increases.关键词
CFRP/高强混凝土/复杂环境/持续荷载/有限元分析Key words
CFRP/high-strength concrete/complex environment conditions/continuous load/finite element analysis分类
建筑与水利引用本文复制引用
王苏岩,刘鹏飞..复杂环境下CFRP-高强混凝土界面性能有限元分析[J].铁道科学与工程学报,2016,13(4):639-647,9.基金项目
国家自然科学基金资助项目(51378089) （51378089）
