本文在理论分析和试验的基础上,对叉车门架计算的一些重要问题提出了看法和建议。文章重点讨论了六个问题:(一)门架的计算状态和计算载荷;(二)门架的外力计算;(三)门架的内力计算;(四)立柱翼缘的局部弯曲应力计算;(五)门架立柱的强度条件和危险应力点;(六)门架的刚度计算问题 Based on the theoretical analysis and experiments, this paper puts forward some opinions and suggestions on some important issues in the calculation of forklift mast. The article focuses on six issues: (a) the calculation of the gantry state and calculation load; (b) the calculation of the external force of the gantry; (c) the calculation of the internal force of the gantry; (iv) the calculation of the local bending stress of the flange of the column; (E) the strength conditions and dangerous stress points of the portal frame; (vi) the calculation of the stiffness of the portal frame