毕业设计(论文) FRP 在工程结构中的应用与发展.docVIP

图书分类号： 密 级： 毕业设计(论文) FRP 在工程结构中的应用与发展 Applications and development of fiber-reinforced polymer in engineering structures FRP 在土木工程中的应用与发展 摘要 FRP ( 纤维增强复合材料) 近年来在混凝土结构加固中得到广泛的应用, 并作为一种新型高性能结构材料受到结构工程界的广泛关注, 国内外有关研究和工程单位开展了大量的研究和实践应用。本文介绍了结构工程中常用的FRP 材料性能和形式, 分析了其优点与不足, 并介绍了FRP 加固结构、FRP 配筋和预应力FRP 筋混凝土结构、FRP 结构与FRP 组合结构以及FRP 在桥梁结构、大跨空间结构和智能结构中的应用与发展, 以期促进我国土建结构工程中对这一新型高性能材料应用和研究工作的开展。 关键词 纤维增强复合材料; 混凝土; 结构加固; 组合结构;大跨结构; 智能结构 Applications and development of fiber-reinforced polymer in civil engineering Abstract In recent years, FRP ( fiber-reinforced polymer/plastic) has been widely utilized for strengthening concrete structures due to its high tensile property. FRP has attracted much attention by the civil and construction industry since it is considered as a new type of high performance structural material. Many research works and actual applications of FRP to civil structures were carried out by both domestic and international organizations. In this paper, an introduction is given on the properties and different forms of FRP frequently used for structural applications, including the statements on the advantages and drawbacks of the material. Moreover, a brief review is given on the application and future development of FRP used for strengthening structures, FRP reinforcements and prestressed tendons for concrete structures, FRP composite structures and other FRP structures, such as bridges,large-span structures and intelligent structures. This paper is mainly aimed at promoting future research and application of FRP for civil structures in China. Keywords fiber-reinforced polymer/plastic; concrete; structural strengthening; composite structures; large-span structure; intelligent structure 1概述 纤维增强复合材料( fiber reinforced polymer/plastic, 简称FRP) 是由纤维材料与基体材料按一定比例混合并经过一定工艺复合形成的高性能新型材料。这种材料从20 世纪40 年代问世以来, 在航空、航天、船舶、汽车、化工、医学和机械等领域得到广泛的应用。近年来, FRP 以其高强、轻质、耐腐蚀等优点, 开始在土木与建筑工程结构中得到应用, 并受到工程界的广泛关注。复合材料由增强材料和基体构成, 根据复合材料中增强材料的形状, 可分为颗粒复合材料、层合复合材料和纤维增强复合材料等。FRP