FRP Strengthening of Large-Size Concrete Columns

针对巴黎戴高乐机场2E航站楼在施工中发现抗爆破力加固不充分的问题，采用碳纤维缠绕柱(CFRP)加固支撑2E航站楼顶板的矩形柱。今年的末期崩盘和对其原因的怀疑已经引起了国际上的反响。该项目得到了行业合作伙伴的大量资金和实物帮助，目的是证明在大截面面积的情况下，可以实现碳纤维加固棱柱构件。这项工作的结果将产生广泛的影响，因为它们将用于验证设计指南使用的预测算法；确定作为大尺寸柱横截面形状函数的限制效率；并为迫在眉睫的现场问题提供答案。

Column wrapping with carbon FRP (CFRP) was used to strengthen rectangular columns supporting the roof of Paris Charles de Gaulle Airport's Terminal 2E after inadequate reinforcement against bursting forces was discovered during construction. The terminal collapse of this year and doubts about its causes have had international repercussions. This project, with significant financial and in-kind help from industry partners, aims at demonstrating that CFRP strengthening of prismatic members is attainable for the case of large cross-sectional areas. The outcomes of this work will have a broad impact as they will be used to validate prediction algorithms used by design guides; determine the efficiency of confinement as a function of the cross-section shape for large size columns; and provide answers for immediate field problems.