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（1 總參工程兵科研三所  洛陽(yáng) 471023； 2 太原理工大學(xué)  030024）

［提要］  綜合分析了國(guó)內(nèi)外幾種常用的評(píng)價(jià)鋼纖維混凝土韌性指數(shù)的定義及其計(jì)算方法，推導(dǎo)并分析了各種韌性指數(shù)計(jì)算公式的物理含義。通過(guò)鋼纖維混凝土標(biāo)準(zhǔn)受彎試件撓度試驗(yàn)結(jié)果的計(jì)算對(duì)比分析，指出各種計(jì)算方法的優(yōu)缺點(diǎn)及適用范圍，給出了實(shí)際工程中的使用建議。

［關(guān)鍵詞］  鋼纖維混凝土  韌性指數(shù)  對(duì)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.