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桥式起重机检验或事故分析时,较为关注主梁强度与下挠变形是否满足标准许可,但对于局部屈曲稳定性由于其计算较为复杂,且对该项数据计算必要性重视程度不足,存在隐患。本文以某台10t桥式起重机坠落事故为例,将其主梁作为分析对象,运用ANSYS有限元软件,对应力集中的区域进行局部建模,对主梁的翼缘板进行特征值屈曲分析,对该类型起重机的检验及事故分析具有一定的指导意义。
Bridge crane inspection or accident analysis, pay more attention to whether the strength of the main girder and the deflection meet the standard permit, but the local buckling stability due to its calculation is more complicated, and the importance of the calculation of the importance of the data is insufficient, there are hidden dangers. In this paper, taking a 10t overhead crane crashed accident as an example, using the main girder as the analysis object, the finite element software of ANSYS is used to localize the stress concentrated area, and the eigenvalue buckling analysis is performed on the flange plate of the main girder. This type of crane inspection and accident analysis of a certain significance.