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桥梁在使用过程中,随着交通量的增大和超载车辆的行驶,在荷载反复作用下,桥面铺装层和板间铰缝遭到破坏,桥梁上部结构的横向连接被削弱,降低了整体承载力。桥面板间铰缝脱落严重,铰缝处有渗水现象,桥面铺装(主要是行车道)有纵缝、沉陷、坑槽,重车通过时桥面板有明显的下挠。分析了这些病害形成的原因,提出了具体解决措施,同时,依据这些病害产生的原因,简要的介绍了施工工艺。
In the process of using the bridge, with the increase of traffic volume and the driving of overloaded vehicles, under the action of repeated loads, the hinge joints between the bridge deck and the slab are damaged, and the lateral connection of the superstructure of the bridge is weakened, reducing the overall Carrying capacity. Bridge deck between the hinge off serious, there are seepage joints at the junction of the phenomenon of bridge deck pavement (mainly the driveway) with longitudinal seam, subsidence, pit, heavy truck through the deck when there is a significant deflection. The causes of the formation of these diseases are analyzed and specific solutions are put forward. At the same time, based on the causes of these diseases, the construction technology is briefly introduced.