摘要
针对斜拉-悬吊协作体系桥出现的加劲梁平面线形畸变、主梁箱室内顶板开裂渗水等病害,进行加固技术研究。在多年实践积累的大跨径柔性悬吊结构体系桥梁加固经验的基础上,提出在保持桥梁恒载不变的情况下,尽量增大结构刚度,从而提高桥梁整体结构的动力特性。
Aimed at the diseases emerging on cable-stayed-suspension collaborative bridge such as linear dis- tortion on stiffening girder and seepage of the roof of main girder, the research of reinforcement technology was conducted. Based on years of experience in reinforcement of large-span bridge with flexible suspension struc- ture, a reinforcement plan was proposed suggesting to increase the structural stiffness while maintaining the dead load of bridge, so as to improve the dynamic characteristics of overall structure of the bridge.
出处
《筑路机械与施工机械化》
北大核心
2011年第10期73-77,共5页
Road Machinery & Construction Mechanization
关键词
斜拉-悬吊协作体系
病害分析
加固
结构刚度
combined cable-stayed suspension structure
disease analysis
reinforcement design
structural stiffness