摘要
PVC-FRP管混凝土柱作为一种新型组合结构形式,结合了FRP材料高强、耐腐蚀和PVC管质量轻、延性好等优点,该结构通过PVC-FRP管对内部核心混凝土的约束效应,增强混凝土柱的力学性能。目前,国内外研究人员对不同配筋率、FRP种类、PVC管壁厚等设计参数下PVC-FRP管混凝土柱的力学性能、抗震性能及耐久性能指标的变化规律进行了大量试验研究和理论分析。其中,基于现有的FRP约束混凝土本构关系模型,推导出了适用于PVC-FRP管混凝土柱的本构关系模型。为进一步明晰PVC-FRP管混凝土柱服役时的工作机理,针对近年来PVC-FRP管混凝土柱的研究现状进行综述,并对今后研究方向提出了建议。
As a new type of composite structure,PVC-FRP confined reinforced concrete columns combine the advantages of high strength,corrosion resistance of FRP material,and lightweight,good ductility of PVC tube.The structure enhances the mechanical properties of concrete columns through the corresponding restraining effect of the PVC-FRP tube on the internal core concrete.Currently,domestic and overseas researchers have conducted many experimental studies and theoretical analyses on the PVC-FRP confined reinforced concrete columns,to explore the effect of reinforcement rate,type of FRP,and thickness of PVC tube on the characteristics of mechanical properties,seismic performance,and durability performance.Among them,based on the constitutive model of FRP confined concrete,some constitutive models applicable to the PVC-FRP tube confined reinforced concrete columns are proposed.Aims to further clarify the working state of PVC-FRP confined reinforced concrete columns during service,this article reviews the research status of PVC-FRP confined reinforced concrete columns in recent years,and proposes some suggestions for future research.
作者
匡广飞
于峰
吴长震
时光龙
KUANG Guang-fei;YU Feng;WU Chang-zhen;SHI Guang-long(Faculty of Architectural Engineering,Anhui University of Technology,Maanshan Anhui243032,China)
出处
《贵州工程应用技术学院学报》
2024年第3期61-67,共7页
Journal of Guizhou University Of Engineering Science
关键词
PVC-FRP管
力学性能
研究进展
抗震性能
耐久性能
PVC-FRP Tube
Mechanical Properties
Research Progress
Seismic Performance
Durability Performance
