FRP在土木工程结构加固应用中的研究进展
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摘要
总结了加强纤维复合材料(FRP)的特点,比较了FRP加固与黏钢加固的异同,对FRP结构加固领域的最新研究成果与工程应用成果进行了系统地综述与分析,指出了FRP结构加固研究与应用中应着重解决的几个关键技术,FRP材料技术、FRP加固设计技术、FRP加固施工技术和FRP检测评价技术。文中还针对FRP结构加固的进一步研究给出了建议和展望,加强FRP加固材料、FRP加固的预应力施工方法、碳纤维加固结构施工方法的研究开发;加快相关加固技术规范的编制;加强混合纤维加固结构以及加固结构的长期性能的研究。研究与应用均表明,FRP用于结构加固具有维修费用少、施工方便、对交通干扰小、结构耐久性能好等特点,必将在未来的结构加固领域占据越来越重要的地位。
The applications of Fiber Reinforced Plastic(FRP) materials in the structure rehabilitation is discussed and compared with steel-bonded reinforcement.The related studies are systematically reviewed and analyzed.Some suggestions for the further researches in the future are put forward.First,the innovation should be emphasized for modification technology of high performance FRP and matching materials.Second,the conventional theory is not applicable to FRP,so the theoretical study should be carried out for structure rehabilitation by FRP.Third,the construction technology for the rehabilitation structure should be further developed.Fourth,because a widely accepted standard of the FRP detection technique is not available,studies in that direction are desirable.It is shown that the FRP structure rehabilitation can reduce the time and cost for maintenance,and the disturbance for traffic,and improve durability.It will play an important role in the structure rehabilitation field.
The applications of Fiber Reinforced Plastic(FRP) materials in the structure rehabilitation is discussed and compared with steel-bonded reinforcement.The related studies are systematically reviewed and analyzed.Some suggestions for the further researches in the future are put forward.First,the innovation should be emphasized for modification technology of high performance FRP and matching materials.Second,the conventional theory is not applicable to FRP,so the theoretical study should be carried out for structure rehabilitation by FRP.Third,the construction technology for the rehabilitation structure should be further developed.Fourth,because a widely accepted standard of the FRP detection technique is not available,studies in that direction are desirable.It is shown that the FRP structure rehabilitation can reduce the time and cost for maintenance,and the disturbance for traffic,and improve durability.It will play an important role in the structure rehabilitation field.
引文
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