旧石拱桥病害与加固分析

Analysis of disease and reinforc-ement of existed stone arch bridge

首先介绍了石拱桥常见的病害及成因;然后对石拱桥加固的方法进行了总结;最后对工程实例的病害、加固方法及加固前的承载力进行了分析,计算得到加固前后主拱圈和腹拱圈承载力提高15%以上,表明所采用的钢筋混凝土套箍加固石拱桥的方法效果良好。

Firstly, common diseases and their causes are introduced respectively; And then, methods of reinforcement for stone arch bridge are explained;Finally, diseases, reinforcement methods and capacity before and after reinforcement of the case study are analyzed.The capacity of the main arch ring and the abdomen arch ring is improved by 15%, which shows that the reinforcement methods of reinforced concrete with hooping bars for stone arch bridge is useful and effective .