文章结合十里铺桥的加固实践,对无设计资料的中小跨径双曲拱桥的加固提出了一套有效方案,即综合采用拱背加固和拱肋外包混凝土的方法,并将原拱式拱上建筑改为梁板式;对加固后结构的计算模型进行了讨论,并对加固设计中应注意的一些问题做了总结。 Combining with the reinforcement practice of Shilipu Bridge, this paper presents an effective solution to the reinforcement of medium and small-span double-curved arch bridge without design data, that is, the method of using arch back reinforcement and arch rib concrete to outsource concrete, The structure of the building is replaced by the beam slab; the calculation model of the reinforced structure is discussed, and some problems that should be paid attention to in the reinforcement design are summarized.