大跨预应力混凝土连续梁施工监控分析

On supervision analysis of large-span prestressed concrete continuous beam construction

结合工程实例,介绍了大跨度预应力混凝土连续梁挂篮悬臂浇筑法施工时梁体的线形监控及应力监控,利用数值模拟的方法,对全桥各个施工阶段进行了有限元仿真分析,并与实测数据进行了对比,结果显示监控结果满足规范要求。

Combining with the engineering examples,the paper introduces the linear supervision and the stress inspection of the beam in the hanging basket cantilever casting of the large-span prestressed concrete continuous beam,adopts the methods of the numerical simulation,undertakes the finite element simulation analysis of all the construction stages,compares with the observation data,and proves that the supervision result meet the demand of the regulation.