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1 纤维增强复合材加固技术在国内外的发展 1962年以后,国际上多数混凝土结构物加固与修补,曾用法国CEBTP的L’Hermite提出的用粘贴钢板的办法。但是钢板本身存在一些不足之处(见表1),为此从90年代起,国际上就开始引用航空、航天技术和补强技术中已经成熟的纤维增强复合材料(FRP),特别是碳纤维增强复合材料(CFRP)代替钢材,作土建结构修补和加固材料。1991年欧洲首先用CFRP完成了国际上第一次桥梁结构加固后,该项技术便在世界上迅速推广。如据英国统计,仅1997年,至少有30多座桥梁和其它的结构采用CFRP加固或修补。大约有6000m长的CFRP板被用于桥梁、管渠、购物中心、工业厂房、隧道、电站结
A fiber-reinforced composite material in the development of technology at home and abroad after 1962, the majority of the international reinforcement and repair of concrete structures, the use of the French CEBTP’s L’Hermite made with the paste plate approach. However, there are some shortcomings of the steel plate itself (see Table 1). For this reason, from the 90s onwards, the mature FRP, especially the carbon fiber reinforced Composite materials (CFRP) instead of steel, civil engineering structures for the repair and reinforcement materials. After Europe first completed the international first reinforcement of the bridge structure with CFRP in 1991, the technology was rapidly promoted in the world. According to British statistics, in 1997 alone, at least 30 bridges and other structures were reinforced or repaired with CFRP. About 6,000m CFRP board is used for bridges, pipelines, shopping malls, industrial plants, tunnels, power plant knot