摘要
对于大跨径连续刚构桥的病害,通常采用的体外索加固方案,作用效果不佳。从部分斜拉桥及索托桥的结构体系概念出发,综合分析比较了不同于常规体外索加固方案的3种加固体系力学特性及加固效果,并将其应用于某桥的加固方案设计中,对同类型桥梁的加固具有一定的参考作用。
At present, many serious diseases are bridges. The common method of external pre-stressing found on the long span continuous rigid frame doesn＇t work well. Enlightened by the concept of the partially cable-stayed bridge and the cable-held bridge structure system, three types of new structure systems are designed to strengthen the old rigid frame bridges. At same time, their mechanical characters and effects are discussed and compared. And it will be the reference for the same kind of bridge on strengthening design.
出处
《公路》
北大核心
2008年第11期94-100,共7页
Highway
基金
西部交通建设科技项目,项目编号200431881426
关键词
桥梁工程
连续刚构桥
新型加固体系
bridge engineering
continuous rigid frame bridges
new strengthening structure system
