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本文基于吊车荷载随机数学模型和混凝土的疲劳试验结果，进行了钢筋混凝土吊车梁混凝土的疲劳累积损伤概率分析，提出了钢筋混凝土吊车梁的混凝土疲劳可靠性分析和疲劳寿命估计方法。
Based on the stochastic mathematical model of crane loads and the fatigue test results of concrete, this paper analyzes the fatigue cumulative damage probability of reinforced concrete crane girder, and presents the concrete fatigue reliability analysis and fatigue life estimation method of reinforced concrete crane girder.