柔性混凝土的抗拉特性及其破坏准则研究

通过极限抗拉强度试验和围压作用下的拉伸试验，研究了柔性混凝土的抗拉破坏特性，研究表明：柔性混凝土与普通混凝土相比，拉压强度比、极限拉应变明显增大；围对抗拉强度影响较小，对拉应变影响较大，当发生拉断破坏时，应以抗拉强度作为破坏准则，当发生剪断时，就以莫尔－库化理论作为破坏准则。

Experimental Study on Tension Resistance and Failure Criterion of Flexible Concrete

Based on the ultimate tensile strength test and extension test under confining pressure, the characteristics of flexible concrete are studied. The results show that the tension compact strength ratio and ultimate tensile strain of flexible concrete are clearly larger than those of normal concrete, that the confining pressure has little effect on tensile strength but much effect on tensile strain, and that the tensile strength should be taken as the failure criterion when tensile failure occurs, and the Mohr Coulomb theory should be taken as the failure criterion when shear failure occurs.