桥面混凝土铺装快速修复的支护措施

Support Measures of Deck Concrete Pavement in Rapid Repair

在不断交的情况下,由行车冲击产生的桥梁振动对桥面铺装修复质量有着较大影响,为此有必要研究并采取合理的支护措施控制此种振动。采用平面杆系有限元模型对桥梁在车辆荷载作用下半幅通车、半幅施工的动态车流进行车桥耦合分析,计算对比了结构控制截面在加固时两种不同状态的内力时程曲线和挠度时程曲线,并根据分析结果验算了桥梁的安全性和合理支护措施,以供相关施工借鉴。

Without interrupting traffic, the bridge vibration generated by driving shocks has significant effects on the quality of bridge deck pavement repair. Therefore it is necessary to study and adopt reasonable support measures to control the vibration. Based on the plane finite element model, this article makes a vehicle-bridge coupled analysis of dynamic traffic flow to find the status of bridge under the vehicle loads when the bridge is under half load and half construction condition. It also compares and calculates the internal force time curve and the deflection time curve in two different state of structure control section in reinforcement. Finally, the article checks the bridge safety and reasonable support measures according to the analysis results, in order to provide reference for relevant construction.