吊车梁腹板承压应力的正确公式

Formulae for Bearing Stress in Web of Crane Beam Under Wheel Load

对于钢吊车梁轮压下腹板承压应力的计算,我国钢结构相关设计规范改过多次,其与欧洲、俄罗斯和美国的公式都不一样。简要介绍了基于弹性地基梁理论的一个解析解,其数值结果与有限元分析一致,同时给出了两类轨道的等效承压长度计算公式。

Equation for bearing stress in web of crane beam under wheel load has been varied several times in the Chinese code for design of steel structures,and they were different from the counterparts in the codes of European,Russian and the United States.This paper introduces a closed form solution whose numerical results are in good agreement with Finite Element analysis.Formulae for the equivalent bearing length of two types of rails are presented.