FRP筋混凝土柱及框架抗震性能的研究进展

摘要/Abstract

摘要： 与普通钢筋相比,FRP筋具有轻质高强、耐腐蚀性能好等优点,但是FRP筋弹性模量较低、为线弹性材料、破坏时脆性大等特性限制了其在混凝土柱,特别是在地震地区结构工程中的应用。介绍了国内外关于FRP筋混凝土柱及框架抗震性能的研究成果,其中包括试验研究和数值模拟研究。国内外研究表明,FRP筋取代钢筋应用于混凝土柱、混凝土框架及其节点是可行的。通过适当配置FRP筋,保证其在弹性范围内工作,则FRP筋混凝土结构能够获得较大的延性和变形能力。最后建议研究FRP筋混凝土柱的破坏模式、抗剪承载力计算、延性评价和设计理论等。系统研究FRP筋混凝土柱基本理论和设计方法具有重要的理论意义和实用价值。

关键词: FRP筋, 抗震性能, FRP筋混凝土柱, FRP筋混凝土框架

Abstract: Compared with ordinary steel rebars, FRP bars have the characteristics of high tensile strength, light weight and non-corrosive. However, FRP bars have low elastic modulus, being linear elastic materials and having great brittleness at failure, which limit the application of FRP reinforced concrete columns, especially the structural engineering in the seismic region. This paper briefly introduces the main progresses in the studies on seismic performance of FRP reinforced concrete columns and structures, in which the experimental and numerical simulation investigations are included. The results show that it is practicable to arrange FRP bars instead of steel rebars in concrete columns, concrete frames and frame joints. FRP reinforced concrete structures can develop better ductility and deformation capacity when FRP bars are arranged properly in the elastic range. In the end, this paper proposes conducting further researches on the failure modes, calculation method of shear resistance, ductility assessment and design theory of FRP reinforced concrete columns. It is of theoretical significance and practical value to investigate the basic theory and design method of FRP reinforced concrete columns systematically

Key words: FRP bars, seismic performance, FRP reinforced concrete column, FRP reinforced concrete structure

中图分类号:

TB332
TU375

邓宗才,高磊. FRP筋混凝土柱及框架抗震性能的研究进展[J]. 玻璃钢/复合材料, 2016, 0(4): 88-92.

DENG Zong-cai, GAO Lei. RESEARCH AND DEVELOPMENT IN SEISMIC PERFORMANCE OF FRP REINFORCED CONCRETE COLUMNS AND STRUCTURES[J]. Fiber Reinforced Plastics/Composites, 2016, 0(4): 88-92.

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