双曲拱桥加固关键技术

Strengthening key technology of hyperbolic arch bridge

结合双曲拱桥江口芙蓉江大桥加固实例,阐述了双曲拱桥病害产生的原因,提出相应的处置措施。对主拱圈的加固提出两种方案进行比选,选择了较优的增大截面法加固方案,并对加固施工方案及工艺提出建议,可为同类桥梁加固设计提供参考。

Combining with the reinforcement instance of hyperbolic arch bridge of Furong River Bridge in Jiangkou, ex- pounds the disease cause of hyperbolic arch bridge, put forward corresponding treatment measures. Two schemes are put forward on the reinforcement of main arch ring, chose the optimal enlarged cross section method of scheme, and puts forward suggestions on strengthening construction scheme and technology, provide a reference for similar bridge reinforcement design.