北拒马河连续梁悬浇施工线形控制技术

On linear controlling technique at Beijuma River continuous girder by free cantilever casting construction

结合京石高铁永定河特大桥跨北拒马河(40+56+40)m连续梁悬浇施工,根据Ⅱ型轨道板梁面结构类型及几何尺寸,阐述了悬壁浇筑施工Ⅱ型轨道板梁面成型及箱梁线形控制措施,以指导现场施工,保证连续梁质量。

Combining with the （40 ＋ 56 ＋ 40）m continuous girder by free cantilever casting construction of Yongdinghe super-large Bridge spanning Beijuma River along Beijing-Shijiazhuang express railway, the study illustrates the beam deck at II -type rail plate and box girder linear con- trolling measures in the free cantilever casting construction, so as to direct the field construction and ensure the quality of the continuous beam.