大跨连续刚构桥线形误差调整方法及其应用

Method of Linear Error Adjustment for Long Span Continuous Rigid Frame Bridge and Its Application

针对大跨桥梁施工中实际结构的线形和理想的设计线形存在一定偏差的问题。采用灰色系统预测方法,结合大跨预应力混凝土连续刚构桥的悬臂施工实践,探讨了连续刚构桥施工中线形误差调整方法,取得了较好的效果。

The method of linear error adjustment for long-span continuous rigid frame bridge is discussed in the paper. In order to insure that the practical structure doesn＇t deviates the ideal structure in the construction, it＇s necessary to adopt different error adjustment method to different error. Combined with cantilever construction practice of a long span prestressed concrete continuous rigid frame bridge, the specific execution procedures of error adjustment is introduced.