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中文摘要：
对快速冻融循环作用后的普通混凝土进行双轴压试验研究,测得其双轴压应力-应变关系曲线。根据Weibull统计分布理论和等效应变假定原理,建立基于损伤理论并考虑应力比影响的普通混凝土双轴压本构模型。研究结果表明：该模型可以有效地描述双轴压荷载作用下普通混凝土的本构关系。
英文摘要：
The strength experiments of plain concrete after freeze-thaw cycles under biaxial compression were studied. The stress-strain relationship of specimens after freeze-thaw cycles was measured. On the basis of damage model of concrete under uniaxial compression, the constitutive model of damage was founded according to the Weibull distribution phenomenological method and equivalent strain hypothesis theory considering the stress ratio of concrete under biaxial compression. The results show that the given model can describe the mechanical capability of plain concrete under biaxial compression after freeze-thaw cycles.
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