摘要
针对空腹式钢筋混凝土拱桥拱上建筑存在严重病害且需要拓宽加固的情况,探讨一种将拱式腹孔改为梁式腹孔的加固措施。以重庆彭水乌江空腹式钢筋混凝土拱桥为依托,分析、比较采用该方法加固前后拱脚、1/4L截面、拱顶截面的力学特性,并阐述其主要施工步骤。
In allusion to serious diseases in architectures on hollow reinforced concrete arch bridges and the need of widening and reinforcing, this paper probes into a reinforcing measure that modifies arch gastropores into beam gastropores. Dependent on Wujiang River Hollow Reinforced Concrete Arch Bridge in Pengshui, Chongqing, this paper analyzes and compares the mechanical characteristics of front and rear arch supports, 1/4L cross section and arch crown section reinforced in this method, and expatiates main construction steps.
出处
《公路交通技术》
2016年第1期90-93,共4页
Technology of Highway and Transport
关键词
钢筋混凝土拱桥
拓宽加固
拱上建筑
应力
reinforced concrete arch bridge
widening and reinforcing
architecture on arch
stress
