预应力混凝土连续梁桥悬臂施工控制研究

Research on cantilever construction control of prestressed concrete continuous beam bridge

对一座采用悬臂施工的预应力混凝土连续梁桥的施工过程进行监控,并基于有限元软件对大桥进行了施工过程及成桥状态的仿真分析。根据分析结果,对大桥主梁进行了应力量测、主梁几何变形监测。监测结果显示,大桥成桥阶段的内力状态及线形状态满足设计及规范要求,施工监控的效果达到了目标的要求。

In this paper,the construction process of a prestressed concrete continuous girder bridge with cantilever construction is monitored,and the construction process and bridge state of the bridge are simulated and analyzed based on the finite element software.According to the analysis results,the stress measurement of the main beam of the bridge and the deformation of the main beam were monitored.The monitoring results show that the internal force state and linear state of the bridge into the bridge meet the design and specification requirements,and the effect of construction monitoring has met the target requirements.