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叙述了复合材料用于建筑物加固修复的重要性、优越性和应用前景。在分析大量文献资料的基础上,结合作者近期的研究工作,归纳并阐述了建筑物加固修复用复合材料技术的主要内容。较详细地介绍了加固修复用复合材料增强体技术与树脂体系技术,给出了多种纤维片材的特性,提出了相应树脂体系的工艺要求与性能要求。同时,对复合材料-混凝土界面粘结机理作了分析。联系国内情况,提出了该领域亟待开展的研究工作。

The importance, advantages and application prospects of the composites used for strengthening and repairing constructions are described. Based on analyzing the related references and the authors' recent research work, the key technologies in this field are summarized, in which the reinforcement and resin matrix techniques are introduced in detail. The properties of several types of fiber sheet materials are presented, and the requirements in both processing and properties of those resin matrixes are proposed. Finally, the adhesive mechanism of the interface between composite and concrete is analyzed. In consideration of domestic situation, some researches which are necessary to carry out in this field are suggested.

参考文献

[1] [1] Wu Z S, Niu H D. Study on debonding failure load of RC beams strengthened with FRP sheets[J]. J of Structural Engineering, 2000,46(3): 1431-1441.
[2] [2] Norio M. Application for security by FRP[J]. Reinforced Plastic (Japanese), 1997,43 (6):119-125.
[3] [3] Chajes M J. Bond and force transfer of composite material plates bonded to concrete[J]. ACI structural J,1996, 93(2): 208-217.
[4] [4] 杉田念. 智能复合材料-VI. 智能复合材料在土木工程上的应用[J].日本复合材料学会,1997,23(5):161-166.
[5] [5] Ross C A, David M, Jerome J W, et al. Strengthening of reinforced concrete beams with externally bonded composite laminate[J]. ACI Structural J, 1999,96 (2): 3-4.
[6] [6] Wu Z S, Yoshizawa H. Analytical/experimental study on composite behavior in strengthening structures with bonded carbon fiber sheet[J]. J of Reinforced Plastics and Composites, 1999,18 (12): 1131-1155.
[7] [7] 吴智深.FRP复合材料在基础工程设施的增强和加固方面的现状与发展[A].见:中国首届纤维增强塑料(FRP)混凝土结构学术交流会论文集[C].2000.6,5-20.
[8] [8] Amanda W. Carbon fiber plate stops the cracks[J]. J of Reinforced Plastics, 1995(7-8): 34-37.
[9] [9] 罗益锋.混凝土补强修补用高性能纤维[A].见:中国首届纤维增强塑料(FRP)混凝土结构学术交流会论文集[C].2000.6,41-48.
[10] [10] 张凤翻.混凝土结构加固修补用复合材料的选材和使用[A].见:中国首届纤维增强塑料(FRP)混凝土结构学术交流会论文集[C].2000.6,27-33.
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