Based on characteristic value buckle analysin method of finite elements theory, this paper analyzes and calculates the main working condition of bridge erecting machine JQ600 with box cross section beam.

• 摘要本文根据有限元理论中的特征值屈曲分析方法，对JQ600型箱梁架桥机的主要工况进行了稳定性分析计算。