计算力学学报Issue(1)：107-112,6.DOI:10.7511/jslx201501018
PVC-FRP 管混凝土柱组合抗压刚度理论分析
Theoretical analysis on the composite compressive stiffness for PVC-FRP confined concrete column
摘要
Abstract
To study the composite compressive stiffness of PVC-FRP confined concrete column,by means of the displacement variation principle of elasticity,the elasticity theory analysis of infinitesimal deforma-tion was performed for PVC-FRP confined reinforced concrete column.Based on the compatibility of ra-dial displacement and longitudinal strain,theoretic formulas of the compressive stiffness of PVC-FRP tube and core concrete,the hooping mechanism coefficient of PVC-FRP tube to core concrete were gained.The composite compressive stiffness calculation theory of PVC-FRP confined concrete column was derived on this basis.The influence law of the CFRP strips volume-fiber ratio,core concrete Poisson’s ratio and concrete strength on the composite compressive stiffness were discussed.The calculated values of the proposed formula agree well with the experimental results.关键词
PVC-FRP 管混凝土柱/组合抗压刚度/变分原理/套箍系数/体积含纤维率/泊松比Key words
PVC-FRP confined concrete column/composite compressive stiffness/variation principle/hooping mechanism coefficient/volume-fiber ratio/Poisson’s ratio分类
建筑与水利引用本文复制引用
于峰,徐国士,程安春,黎德光..PVC-FRP 管混凝土柱组合抗压刚度理论分析[J].计算力学学报,2015,(1):107-112,6.基金项目
国家自然科学基金(51278403,51008001) （51278403,51008001）
安徽省自然科学基金(1208085 QE88) （1208085 QE88）
住房和城乡建设部科学技术(K4201222)资助项目 （K4201222）
