（1 总参工程兵科研三所  洛阳 471023； 2 太原理工大学  030024）

［提要］  综合分析了国内外几种常用的评价钢纤维混凝土韧性指数的定义及其计算方法，推导并分析了各种韧性指数计算公式的物理含义。通过钢纤维混凝土标准受弯试件挠度试验结果的计算对比分析，指出各种计算方法的优缺点及适用范围，给出了实际工程中的使用建议。

［关键词］  钢纤维混凝土  韧性指数  对比研究

Comparative Study of Evaluate Method for Toughness Factor of Steel Fiber Reinforced Concrete(SFRC)/Wei Mingshan1, Li Lisha2, Zheng Quanping1, Ding Qiaoai1(1 The Third Engineer Scientific Research Institute of the Headquarters of the General Staff，Luoyang 471023，China；2 Taiyuan University of Technology, Taiyuan 030024，China)

Abstract:Several definitions and calculation methods of evaluation adopted widely  to toughness factor of Steel Fiber Reinforced Concrete(SFRC) were summarized, various toughness factor calculation expressions" physics meaning were deduced and analyzed. Though the contrast and analysis of results of SFRC standard member in bending flexibility test, many calculation methods" merits and drawbacks and scope of application were pointed out, performance suggestions in practice engineering were offered.