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某上承式箱肋拱桥主桥为钢筋混凝土箱形肋拱桥,箱形拱肋上的拱上立柱、盖梁、T梁均通过预制安装架设而成,由于施工、设计等原因,该桥存在整桥刚度弱、桥面破损严重、人行道板及拦杆拉裂、隆起等病害,且重车通过时振动较大。本文详细介绍该桥质量检测、荷载试验、病害分析、加固方案研究、设计、施工等,为该类桥梁提供维修处治提供参考。
The main bridge of a certain box-type box rib arch bridge is a reinforced concrete box rib arch bridge, and the upright columns, the cover beam and the T beam on the box arch rib are all prefabricated and erected and erected. Due to the construction and design, the bridge exists The bridge stiffness is weak, the deck is damaged severely, the sidewalk boards and bar crack, uplift and other diseases, and heavy vibration through the heavy vehicles. In this paper, the bridge quality inspection, load test, disease analysis, reinforcement program research, design, construction and so on are introduced in detail, providing reference for such bridges to provide maintenance treatment.