【摘要】 黑沟特大桥为主跨150 m的预应力混凝土连续刚构桥.为保证桥梁成桥线性和应力与设计保持一致,施工中采用了施工控制.文章利用有限元方法建立其仿真分析模型,模拟桥梁的施工及成桥状态,研究悬臂浇筑施工各工况,分析各工况下桥梁结构的变形及内力、应力,并与实测结果对比,表明施工控制仿真分析模型的可靠性,为桥梁施工控制提供参考.更多还原

【Abstract】 Heigou Bridge is a prestressed concrete continuous rigid-frame bridge,its main span is 150m.In order to ensure the bridge linearly and force can accord with design,the process of construction has to be monitored.In this paper,establishing a simulating model with finite element method to simulate the process of construction and trafficed,researching the cantilever construction process and analyzing the structural deformation,stresses and internal forces,and comparing the results with those actual measurement records and they are consistent.It is meaningful for the bridge construction control.更多还原