高速铁路连续梁桥悬臂浇筑施工变形控制

Deformation control of the continuous beam cantilever casting construction on high-speed railway

结合沪宁城际铁路现场施工监控实例,简要介绍了高速无砟客运专线铁路桥梁的变形控制,通过采用正装倒拆位移分析方法分析确定各个施工阶段梁体各节段变形值用以指导施工,以保证桥梁施工中的安全性,使桥梁的实际受力符合设计受力状态,桥梁线形满足运营要求。

Combining with the field construction supervision case of the Huning intercity railway,the author briefly introduces the deformation of the high speed unballasted passenger dedicated line bridge,according to adopt forward erection and backward displacement analysis method,analyzes and confirms the deformation values of the beam s all sections in all construction stages to guide construction,so as to ensure safety of the bridge construction,make the practical forcing of bridge confirm with design forcing state, and the bridge line satisfy operation requirements.