新寨河特大桥施工监控技术研讨

新寨河特大桥为预应力混凝土连续刚构桥，箱梁施工悬臂长度大，为了确保主桥在施工过程中结构受力和变形始终处于安全的范围内，且成桥后的主梁线形符合设计要求，结构恒载内力状态接近设计期望，在主桥施工过程中应进行监控。监控主要针对桥梁位移、应力应变和温度三方面，监控效果较好。

The discussion of construction monitoring technica of Xinzhai River Bridge

Xinzhai River Bridge is a prestressed concrete continuous rigid frame bridge and the construction cantilever of box girder is length.It is essential to have a monitoring in order to ensure security of force and deformation of the main bridge structure,girder shape with the design requirements and the internal constant-load forces of the structure close to the design during the construction process.Monitoring aimed at the bridge displacement,stress and strain and temperature have better result.