摘要
混凝土复杂应力状态下的疲劳损伤公式可由单轴应力状态下的疲劳公式推广而得 ,应用时只需采用与混凝土静载破坏准则相适应的等效应力代替单向应力 。
The fatigue formula of concrete under multiaxial stress can be obtained by substituting the equivalent stress for the uniaxial stress in the fatigue formula of concrete under uniaxial stress . The equivalent stress is related to the failure criterion of concrete .The initiation of fatigue rupture is located where the equivalent stress maches the maximum.
