阐述纤维增强复合材料(FRP)加固混凝土柱的研究进展及成果,包括FRP加固混凝土柱的原理、破坏形式、试验研究、有限元模拟、抗震性能评估以及未来发展趋势等。在抗震性能评估方面,介绍了延性的量化设计指标:位移延性系数和曲率延性系数。介绍计算位移延性系数的3种实用方法,并用曲率增大系数来衡量曲率延性系数,以期为FRP抗震加固的进一步研究提供参考。 The research progress and achievements of reinforced concrete columns strengthened with fiber reinforced composites (FRP) are introduced, including the principle, form of failure, experimental study, finite element simulation, seismic performance evaluation and future development trend of FRP reinforced concrete columns. In the aspect of seismic performance evaluation, ductility quantitative design indexes are introduced: displacement ductility coefficient and curvature ductility coefficient. Three practical methods to calculate the displacement ductility coefficient are introduced, and the curvature ductility coefficient is measured by the curvature increasing factor, which can provide a reference for the further research on the aseismic strengthening of FRP.