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桥梁外部变形监测是运营期桥梁检查和检验的重要内容之一,可以与结构监测相互补充、相互验证,为确保桥梁的安全提供充足的技术支持。该文从讨论桥梁变形监测的重要性出发,就苏通大桥运营期变形监测体系进行详细设计。首先根据目前桥梁变形监测的现状提出了建立苏通大桥外部变形监测体系的目标;其次在充分分析苏通大桥结构组成、桥型等基础上确定了变形监测部位与项目;最后参照相关规范、规程,分析了本项目监测的特点与难点,制定了监测方案,主要从监测点的设置、监测方法与精度要求等方面进行了详细论述。可为类似桥梁监测工程提供借鉴。
Bridge external deformation monitoring during operation is one of the important parts of bridge inspection and inspection. It can complement and verify each other with structural monitoring and provide sufficient technical support for ensuring the safety of bridges. Based on the discussion of the importance of bridge deformation monitoring, this paper detailedly designs the deformation monitoring system during the operation period of Sutong Bridge. First of all, based on the current situation of bridge deformation monitoring, the goal of establishing the external deformation monitoring system of Sutong Bridge is proposed. Secondly, the deformation monitoring sites and projects are determined based on the structural composition and bridge type of the Sutong Bridge. Finally, with reference to relevant norms and regulations , Analyzed the characteristics and difficulties of this project monitoring and formulated the monitoring plan, mainly discussed in detail from the aspects of the setting of monitoring points, monitoring methods and accuracy requirements. It can provide reference for similar bridge monitoring project.