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根据混凝土的疲劳寿命离散主要是由于混凝土的静载破坏强度即混凝土材料的离散而引起的这一结论为基础；对混凝土在等幅和变幅高周重复荷载作用下的疲劳破坏的概率分析进行了初步探讨，给出了计算混凝土疲劳破坏概率及满足—定保证率的疲劳抗力的计算方法，利用这一方法可以对混凝土的疲劳破坏进行较合理的概率分析，合理地确定在等幅或变幅重复荷载作用下满足一定保证率的混凝土疲劳抗力，为在设计中正确选取混凝土的疲劳强度提供了合适的方法。
According to the conclusion that the fatigue life of concrete is mainly due to the static load failure strength of concrete, that is, the dispersion of concrete materials; the probability analysis of fatigue failure of concrete under repeated load with constant amplitude and varying amplitude is carried out. A preliminary discussion was given to calculate the fatigue failure probability of concrete and the calculation method of fatigue resistance that meets the guaranteed rate. This method can be used to analyze the fatigue failure of concrete more reasonably and reasonably determine the amplitude or change. The fatigue resistance of concrete under a repeated load to meet a certain guarantee rate provides a suitable method for properly selecting the fatigue strength of concrete in the design.