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利用应变法测量门式起重机钢结构危险截面在危险情况下的动态应力幅值、动刚度的测量及剩余使用寿命的计算方法,对门式起重机钢结构技术状态作出了评价。
Using the strain method to measure the dynamic stress amplitude, dynamic stiffness measurement and remaining service life calculation method of the dangerous section of the steel gantry of gantry crane under dangerous condition, the technical status of gantry crane steel structure was evaluated.