A member called assisted beam, which a bridge erecting machine put inside of main beam, is introduced and fixed when it extends to the front pier to support main beam accomplishing the course of passing hole. The whole work course of the bridge erect machine is analyzed using the finite element method. The stress and deformation of the structure of different key work conditions are obtained. The results show the new production can fulfill the requirements of mechanic performance and can complete the schedule function.%某等跨架桥机在普通架桥机的基础上引入导梁放置于主梁内部,过孔时导梁展开伸至前桥墩,固定后作为支撑构件而实现主梁的过孔.应用有限元方法对架桥机工作过程进行分析,获得各关键工作状态时结构的变形和应力情况.结果表明,该架桥机在各个状态时均达到了受力性能的要求,可成功实现预定功能.
展开▼
