FRP增强海水海砂混凝土结构研究进展  

Research progress of FRP reinforced seawater sand concrete structure

作　　者：吴沛宗 江振兴 杨泽铭 林嘉祥 WU Peizong;JIANG Zhenxing;YANG Zeming;LIN Jiaxiang(School of Civil and Transportation Engineering,Guangdong University of Technology,Guangzhou 510006,China)

机构地区：[1]广东工业大学土木与交通工程学院,广东广州510006

出　　处：《混凝土》2024年第8期48-54,62,共8页Concrete

基　　金：国家自然科学基金(12002090);国家级大学生创新创业训练计划基金(202211845040)。

摘　　要：结合轻质高强耐腐蚀的纤维增强复合材料(FRP)与海水海砂制备FRP增强海水海砂混凝土结构是近年来的研究热点。使用FRP材料替代钢材可以使得海水海砂可以未经淡化直接用于结构当中。利用海水海砂代替淡水河砂是解决淡水河砂资源匮乏、河砂开采导致河床生态问题的重要途径,对于海洋工程建设还能就地取材,降低淡水河砂的运输成本,对我国海洋强度战略具有重大意义。通过对国内外已有的FRP增强海水海砂混凝土结构研究现状进行分析,总结介绍了海水海砂混凝土以及FRP增强聚合物两种材料特性和新型FRP增强海水海砂混凝土结构形式。综述了FRP筋截面面积、配筋率、箍筋间距等因素对FRP增强海水海砂混凝土结构的力学性能影响规律。分析了目前海工混凝土结构所存在的问题,并提出了海工混凝土结构研究建议以及展望,为今后海工结构的研究提供参考。In recent years,it is a hot research topic to prepare FRP reinforced seawater sand concrete structure by combining lightweight,high-strength and corrosion resistant fiber reinforced polymer(FRP)with seawater sand.The use of FRP materials instead of steel can make sea sand directly used in structures without desalination.The use of seawater and sea sand to replace freshwater river sand is an important way to solve the shortage of freshwater river sand resources and the ecological problems of river bed caused by river sand mining.It is also of great significance to the marine strength strategy of China by using local materials for marine engineering construction and reducing the transportation cost of freshwater river sand.Based on the analysis of the existing research status of FRP reinforced seawater sea sand concrete structures at home and abroad,it summarizes and introduces the characteristics of seawater sea sand concrete and FRP reinforced polymer and the new type of FRP reinforced seawater sea sand concrete structures.It summarizes the influence of factors such as section area,reinforcement ratio and stirrup spacing of FRP bars on the mechanical properties of FRP reinforced marine sand concrete structures.It analyzes the problems existing in the current marine concrete structures,and puts forward suggestions and prospects for the research of marine concrete structures,which provides reference for the future research of marine structures.

关 键 词：海水海砂混凝土 纤维增强复合材料 海工混凝土结构 

分 类 号：TU528.01[建筑科学—建筑技术科学]