DF50/160架桥机主梁设计及有限元分析研究

Girder Design of DF50/160 Type Bridge Erecter and Its Analysis on Finite Element Method

根据DF50/160架桥机主梁受移动荷载作用及不同工况应力分布的特点,综合统筹材料使用效率和经济性及制造工艺简化等因素,确定主梁设计方案。同时进行了全工作过程有限元模拟和计算分析,进行有效合理的改进,在DF50/160架桥机得到成功实践和应用,为移动荷载作用下桁架式吊车梁等类似结构的设计和优化计算提供了切实可行的方案和途径。

In view of both the moving loads applied on the truss girder in DF50/160 type bridge erector and the stress distribution at various job states, the truss girder design strategy is settled in consideration of steel material utilization enhancement as well as the simplification in manufacture and installation. Simulation and calculating analysis of its whole performance based on finite element method are carried out. Improvement of the girder design is completed and successfully applicable to the DF50/160 type bridge erector. The practical strategy and method is introduced and proved to be feasible for the design and structure optimization of the same steel structures as the miss girder under moving loads.