钢管混凝土劲性骨架拱桥施工安全监控

Monitoring of Construction Safety of Concrete Filled Steel Tube Stiff Skeleton Arch Bridge

受施工中施工荷载、材料弹性模量、温度变化、测量误差的影响,结构的实际空间位置几乎不可能与结构初始理论设计值完全一致,必然存在一定的偏差。若对这个偏差不加以及时而有效的修正,就会影响成桥的内力和线形,最终成桥质量也会下降。以某实际钢管混凝土劲性骨架拱桥为背景,对监测工作内容进行了详细的分析讨论,介绍了位移监测和应力监测的具体内容,解决了其重难点问题,保证了成桥的质量,为一些同类型的桥梁施工监控提供了一些参考和借鉴。

Influenced by the construction load, material elasticity modulus, temperature variation and measuring error in the construction, the actual space position of the structure is almost impossible to agree with the initial theoretical design value of the structure, and there must be some deviations. This deviation if not be effectively amended in time will influence the inner force and alignment of the finished bridge. Finally the quality of the finished bridge will also go down. Taking a practice of concrete filled steel tube stiff skeleton arch bridge as the background, the article analyzes and discusses the monitoring contents in detail,introduces the detailed contents of displacement monitoring and stress monitoring to solve its difficulties and guarantee the quality of the finished bridge, which provides some references for the construction monitoring of the similar bridges.