大跨度分段施工连续箱梁桥的线型控制

Alignment Control of Continuous Box Girder Bridge in Construcion of Long Span by Segments

以采用分段施工的某大跨度预应力混凝土连续梁桥为例,分析了该类型桥梁线性控制的内容和方法。给出了预拱度设置的具体方法,详细说明了立模标高的计算和挠度检测等重要内容。

Abstract Taking the construction by segments on a prestressed concrete continuous box girder bridge with long span as example, the paper and lizes the contents and methods for alignment control of present category of bridge. It gives specific methods for precamber setting up, minutely explains the important contents such as the stereomodel hight＇s calculation and detection.