【摘要】 对C15水工混凝土做了受压疲劳试验,并测试分析了典型循环周次的变形模量。结果发现,水工混凝土呈现明显的疲劳损伤三阶段发展规律,并获得了疲劳变形模量与疲劳损伤发展模型及疲劳损伤失稳判据,对工程应用和损伤鉴定具有指导意义。更多还原

【Abstract】 The compressive fatigue experiments on concrete in hydraulic structure C15 are performed and the deformation modulus of the typical cycles is also tested.By analyzing the results of this fatigue experiments,it shows that the fatigue damage of concrete in hydraulic structure appears three-phase rules.The development model of fatigue deformation modulus,the development model of fatigue damage,and the instability criterion of fatigue damage are obtained for concrete in hydraulic structure,and research results are quite valuable for the engineering application and damage evaluation.更多还原