本溪衍水斜拉桥主桥塔梁同步平衡法施工技术

The Construction Technology of Synchronous Balance Method of Cable-stayed Bridge Main Beam and Tower of Benxi Yanshui Bridge

以本溪衍水特大桥主桥钢拱塔与钢箱梁同步施工为例,突破常规斜拉桥塔、梁分离异步式施工方法,应用midas civil有限元软件建模分析及三维模拟技术,施工中合理组织安排塔、梁、索施工顺序,并通过仿真计算与现场实测相结合的方法,实时监测结构应力与线型,采用塔梁同步平衡法施工,提高施工作业效率,降低了施工安全风险,确保了工程质量及工期目标的实现。

Take large bridge tower and steel box girder construction of main span steel arch of Benxi Yanshui Bridge as an example. Break through the conventional separation asynchronous construction method of cable-stayed bridge tower and beam. Need to use finite element software Midas civil modeling analysis and 3D simulation technology. Reasonable to arrange the construction sequence of tower, beam and cable in the process of construction. Through the method of combining the simulation calculation and field measurement. Real-time monitoring the Structural stress and linear. Through the construction method of tower beam synchronous balance.Improve construction efficiency,reduce the risk of construction. To ensure the engineering quality and achieve the goal of the construction period.