JQ1300步履式架桥机的结构力学分析

Structural Mechanics Analysis of JQ1300 Walking Bridge Erecting Machine

步履式架桥机作为大跨度箱梁架设的关键设备,其结构力学性能决定了大跨度桥梁的建设安全和稳定性。以JQ1300步履式架桥机为研究对象,应用有限元方法对JQ1300架桥机进行总体结构有限元分析,分别对等跨架设和过孔作业的主要工况进行了刚度、位移以及载荷等性能参数进行计算和仿真分析,重点对支腿与主梁的性能进行仿真分析,所引出的结论和方法对跨度较大的起重设备设计和计算具有一定的指导意义。

Walking bridge erecting machine is the key equipment for erection of long-span box girder.Its structural mechanical properties determine the safety and stability of long-span bridge construction.Taking the JQ1300 walking bridging machine as the research object,the finite element method is used to analyze the overall structure of the JQ1300 bridging machine,and the performance parameters such as stiffness,displacement and load are carried out for the main working conditions of the cross-erection and throughhole operations.Carrying out calculation and simulation analysis,focusing on the simulation analysis of the performance of the legs and the main beam,the conclusions and methods have certain guiding significance for the design and calculation of the lifting equipment with large span.