温度对悬浇法施工桥梁长悬臂箱梁标高的影响及其对策

Influence of Temperature on Elevation of Long Cantilever Box Girder Cast with Balanced Cantilever Method and Countermeasures Against Temperature Influence

结合多座连续刚构桥和斜拉桥施工监控实践,介绍温度对大跨度桥梁悬浇法施工的悬臂箱梁标高影响的最新研究结果和克服温度对长悬臂箱梁标高影响的有效方法,所有这些对大跨同类桥型施工监控有较大的参照价值。

With reference to the construction control of several continuous rigid frame bridges and cablestayed bridges, this paper presents the latest research findings about the influence of temperature on the elevation of box girders of longspan bridges cast with balanced cantilever method and the effective ways to reduce the influence of temperature on elevation of the long cantilever box girders. The findings described herewith are of considerable reference to the construction control of other similar kind of longspan bridges.