本文使用两种不同的计算方法对箱形伸缩式随车起重机起重臂强度进行计算，通过对各节起重臂危险截面的应力值进行对比，分析不同计算方法下各节起重臂应力值大小，总结出起重臂强度计算过程中采用哪种计算方法能够得到比较准确的起重臂强度计算结果，从而指导起重臂过程中设计值与理论要求值较优匹配。%This article uses two different calculation methods for box type telescopic lorry crane jib strength calculation. Based on the comparison of the stress value of the dangerous section of the jibs, the stress value of the jibs under different calculation methods are analyzed, and the best method is found which can get the relatively accurate calculation result to guide the best match of design value and theoretical value in the process of hoisting.
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