结构工程师2013，Vol.29Issue(1)：149-156,8.
预应力纤维布约束混凝土圆柱轴压性能分析
Performances of Circular Concrete Columns Confined with Lateral Pre-tensioned FRP under Axial Loads
摘要
Abstract
The active confinement to the core concrete can be provided by lateral pre-tensioned FRP; and therefore strength and ductility of circular concrete columns confined with lateral pre-tensioned FRP can be enhanced. To investigate the axial compressive performance of circular concrete columns confined with lateral pre-stressed FRP, 18 specimens were tested under axial compression. Along with the experiments, a finite element method was proposed to simulate the mechanical behavior of circular concrete columns confined with lateral pre-stressed FRP by using ABAQUS. Modeling process of the ABAQUS was described. Confinement effects of lateral pre-stress were studied by comparing the ultimate strength, ultimate strain and the stress-strain curves of the specimens obtained from the testing and numerical simulation, which have good agreement. Reasons for the difference were further analyzed.关键词
混凝土圆柱/环向预应力FRP/主动约束/轴心受压/有限元分析Key words
circular concrete column, pre-stressed FRP, active confinement, axial compression, finite element引用本文复制引用
周长东,白晓彬,吕西林..预应力纤维布约束混凝土圆柱轴压性能分析[J].结构工程师,2013,29(1):149-156,8.基金项目
国家自然科学基金项目(50978021) （50978021）
同济大学土木工程防灾国家重点实验室开放基金项目(SLDRCE08-MB-01) （SLDRCE08-MB-01）
