摘要
以矮寨特大桥为研究背景,首先分析山区大跨度悬索桥的特点,对几种常用于架设山区悬索桥加劲梁的方法进行比较分析;在此基础上概述矮寨特大桥架设钢桁加劲梁所采用的轨索滑移法的基本原理,研究分析该方法所用轨索运梁系统的设计特点、力学原理的试验验证和施工步骤及要点。研究结论可为山区大跨度悬索桥加劲梁的架设施工提供参考。
As the study background of Aizhai Bridge, the article analyzers the characteristics of long-span suspension bridge in mountainous area, and compares and analyzes several common methods erecting the stiffening girder of suspension bridges in mountainous area. On this basis, the article describes the basic principle of rail cable sliding method used for erecting the steel stiffening truss girder of Aizhai Bridge, and studies and analyzes the design characteristics, mechanics principle test, construction steps and gist of rail cable girder transport system used of this method. The study conclusion can be referred for the erection construction of stiffening girder of long-span suspension bridge in mountainous area.
出处
《城市道桥与防洪》
2014年第7期294-296,22-23,共3页
Urban Roads Bridges & Flood Control
关键词
大跨度悬索桥
加劲梁
钢桁架
施工方法
轨索滑移法
long-span suspension bridge,stiffening girder,steel truss,construction method,rail cable sliding method
