水利水电科技进展2025，Vol.45Issue(2)：24-30,7.DOI:10.3880/j.issn.1006-7647.2025.02.004
压剪条件下FRP-混凝土界面黏结性能试验研究
Experimental study on bond behavior of FRP-concrete interface under compression and shear conditions
摘要
Abstract
In order to further understand the bond behavior of FRP-concrete interface in underground gas storage under combined compression and shear conditions,an indoor direct shear test was conducted to study the bond performance of the FRP-concrete interface under varying influencing factors,including normal stress,concrete surface roughness,adhesive thickness and concrete strength.The results show that the FRP-concrete interface is mainly characterized by debonding failure of the concrete surface under the combined compression and shear conditions.A significant nonlinear relationship exists between the interfacial shear stress and displacement.The strength and stiffness of the interface increase with the increase of normal stress,concrete surface roughness,adhesive thickness and concrete strength.The Mohr-Coulomb criterion can be used to describe the yield failure behavior of the interface under compression and shear conditions.关键词
FRP-混凝土界面/压剪条件/混凝土表面粗糙度/胶层厚度/界面本构模型Key words
FRP-concrete interface/compression and shear conditions/surface roughness of concrete/adhesive thickness/interfacial constitutive model分类
土木建筑引用本文复制引用
蒋中明,肖喆臻,袁振,贺松涛,杨雪..压剪条件下FRP-混凝土界面黏结性能试验研究[J].水利水电科技进展,2025,45(2):24-30,7.基金项目
国家自然科学基金项目(52178381) （52178381）
长沙理工大学研究生科研创新项目(CXCLY2022073) （CXCLY2022073）
中国电建集团核心攻关项目(DJ-HXGG-2023-09) （DJ-HXGG-2023-09）
