Reinforcing structure of small-span masonry arch bridge and method thereof

The invention relates to a reinforcing structure of a small-span masonry arch bridge. The arch bridge comprises an arch bridge body, an arch ring is arranged in the middle of the arch bridge body; thetwo ends of the arch bridge body are each provided with bridge base respectively. A reinforcing seat is arranged at one side, close to the middle of the arch bridge body, of each bridge seat, an archframe is arranged on the two reinforcing seats in a supporting mode, a steel plate is arranged on the arch back of each arch frame, cavities are formed between the steel plates and the arch rings atintervals, reinforcement cages are arranged in the cavities, and concrete is poured into the cavities. The reinforcing device has the effect of preventing the arch ring from being damaged in the reinforcing process. 本发明涉及一种小跨径圬工拱桥的加固结构，其包括拱桥本体，拱桥本体的中部设置有拱圈，所述拱桥本体的两端分别设置有一桥座，每个所述桥座靠近拱桥本体中部的一侧设置有加强座，两个所述加强座上支撑设置有拱架，所述拱架所呈弓形的背部设置有钢板，钢板与拱圈之间间隔设置形成腔室，所述腔室内设置有钢筋笼，腔室内浇注有混凝土。本发明具有避免在加固的过程中造成拱圈损坏的效果。