CFRP布约束PEC柱柱中挠度试验研究

摘要

为探究加载偏心距、CFRP布间距与层数对CFRP布约束PEC柱柱中挠度的影响,对15根CFRP布约束PEC柱进行单调受压试验。结果表明,偏心距、CFRP布间距与层数均对柱中挠度有一定的影响,且偏心距是影响CFRP布约束PEC柱最重要的因素。根据试验结果,提出适用于CFRP布约束PEC柱的柱中最大挠度计算式。将计算值与试验值进行对比可知,计算式吻合度较好。In order to investigate the effects of loading eccentricity,CFRP spacing and layers on the deflection of CFRP cloth constrained PEC columns,15 CFRP cloth constrained PEC columns were tested under monotonic compression.The results show that eccentricity,CFRP spacing and number of layers have certain effects on the deflection of columns,and eccentricity is the most important factor affecting the confinement of PEC columns by CFRP cloth.based on the experimental results,a formula for calculating the maximum deflection of CFRP cloth constrained PEC columns is proposed.Comparing the calculated value with the experimental value,it can be seen that the calculation formula is in good agreement.

作者张鹏赵晓冬邓宇ZHANG Peng;ZHAO Xiaodong;DENG Yu(Department of Civil Engineering and Architecture,Guangxi University ofScience and Technology,Liuzhou 545006,China)

机构地区广西科技大学土木建筑工程学院

出处《混凝土》 CAS 北大核心 2021年第1期31-35,共5页Concrete

基金国家自然科学基金资助项目(51768008) 中国博士后科学基金项目(2017M613273XB) 柳州市科学研究与技术开发计划(2017BC40202) 广西科技大学创新团队支持计划资助。

关键词CFRP PEC柱挠度偏心距CFRP PEC column deflection eccentricity

分类号TU528.01 [建筑科学—建筑技术科学]