建立了混凝土单轴受拉、轴受压与双轴拉压组合条件下的随机损伤本构关系模型。
The stochastic damage constitutional law models of concrete under uniaxial tension, uniaxial compression and biaxial tension compression combination are established.
进行海水中不同冻融循环次数后轻骨料混凝土双轴拉(劈拉)压状态下的强度试验，考察试件的破坏形态和表面裂缝的走向特征。
The strength experiments of lightweight aggregate (LWA) concrete after freeze-thaw cycling in seawater under biaxial splitting tension and compression stress are preformed.
在此基础上，分析了双轴拉-压极限强度随冻融循环次数的变化规律，并在主应力空间和八面体应力空间建立了同时考虑冻融循环次数和拉压比的破坏准则。
On this basis, the failure criterion of concrete simultaneously considering the freeze-thaw cycle and tension-compression ratio in principle stress space and octahedral space is established.
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