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      鄧宗才  李秉章  徐佐霞
    （山東建材學(xué)院建工系  濟(jì)南 250022）

[提要]  用四點(diǎn)剪切梁試件測(cè)得了鋼纖維砼I、Ⅱ復(fù)合型V形切口問(wèn)題的臨界斷裂曲線，建立了斷裂準(zhǔn)則的經(jīng)驗(yàn)公式，討論了最大拉應(yīng)變準(zhǔn)則在V形切口問(wèn)題中的應(yīng)用。
[關(guān)鍵詞]  鋼纖維砼 V形切口  斷裂準(zhǔn)則

The critical fracture curve of mixed mode  I  andⅡfor V-notch in steel fiber reinforced concrete is obtained by using four-point shear specimens, the application of the maximum tensile strain criterion to steel fiber reinforced concrete is studied.
Keywords: steel fiber; reinforced concrete; V-notch; fracture criterion