FRP Strengthening of Large-Size Concrete Columns

大尺寸混凝土柱的FRP加固

• 批准号: 0453808
• 负责人: Antonio Nanni
• 金额: $ 5万
• 依托单位: Missouri University of Science and Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-10-01 至 2005-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0453808&HistoricalAwards=false
• 关键词: FRP; Strengthening; Large; Size; Concrete

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.

采用碳纤维增强塑料（CFRP）包裹柱，以加强支撑巴黎戴高乐机场2 E航站楼屋顶的矩形柱，因为在施工过程中发现抗爆裂力的钢筋不足。 今年的最终崩溃以及对其原因的怀疑产生了国际影响。 该项目在行业合作伙伴的大量资金和实物帮助下，旨在证明CFRP加固棱柱形构件在大横截面情况下是可以实现的。 这项工作的成果将产生广泛的影响，因为它们将用于验证设计指南所使用的预测算法;确定作为大尺寸柱横截面形状的函数的限制效率;并为直接的现场问题提供答案。