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白兰高速公路忠和立交D匝道桥为多跨预应力混凝土连续弯箱梁桥 ,曲线半径 5 5 0m ,采用满堂支架就地浇筑施工 ,施工难度大 ,技术要求较高。介绍了该匝道桥在施工阶段中施工监测的方法、施工监测系统的建立、施工监控的实施步骤、监控内容及监测结果与理论计算值的对比分析 ,可为今后类似桥梁设计与施工提供借鉴与参考
The Bailan Expressway Zhonghe Interchange D ramp bridge is a multi-span prestressed concrete continuous curved box girder bridge with a curve radius of 550 m. The construction is done in-situ by full support construction. The construction is difficult and the technical requirements are high. The method of construction monitoring of the ramp bridge in the construction stage, the establishment of the construction monitoring system, the implementation steps of the construction monitoring, the content of the monitoring and the comparative analysis of the monitoring results and the theoretical calculated values are introduced, which can provide reference and reference for similar bridge design and construction in the future reference