柔性纤维混凝土的新K_R阻力曲线和双K断裂参数的试验研究

Experimental Study of New K_R-resistance Curve of Flexible Fiber Reinforced and Double-K Fracture Parameters

基于徐世烺和H.W.Reinhardt提出的虚拟裂缝扩展粘聚力的新阻力曲线和双断裂准则,以聚丙烯纤维混凝土为例,对柔性纤维混凝土的阻裂机理进行试验研究和理论分析,总结出柔性纤维对于混凝土的阻裂作用规律,可供同行参考。

Based on the new KR-resistance curve and double-K fracture criterion of the virtual crack extension cohesive force developed by XU Shi-lang and H.W.Reinhardt,taking polypropylene fiber reinforced concrete for an example,the experimental study and theoretical analysis on crack resistance mechanism of flexible fiber reinforced concrete are carried on,the law of flexible fiber crack resistance in concrete are summed up,which can provide reference for peers.