摘要
曲江大桥跨越竹居河,主桥采用3×96m跨下承式简支钢桁梁,地址情况复杂,桥址处峡谷较深,主墩最高达92m。对比主桥钢桁梁安装架设过程中拖拉法及悬臂施工法的经济性、安全性及可行性等方面因素,介绍采用的改进型悬臂施工法(单端悬臂索塔辅助拼装法),及其相对于其他架设方法的优势,为我国该类桥梁的架设施工提供了更多的成功经验。
The Qujiang River Bridge spanning the Zhuju River, the main bridge uses 3 × 96 m through-type simple-supported steel truss beams. As the bridge is located in a relatively deep valley its main pier is as high as 92 m and the geological conditions there is very complex. Upon the basis of comparing the economy, safety and feasibility of the pulling method and the boom method commonly used for the erection of the steel truss beams of main bridges the innovated boom method （Namely the cable-tower-aided assembly method） is introduced in the paper, with its advantages over other erection methods dealt with. The project may provide more successful experience for the erection of bridges of the same type in the future.
出处
《国防交通工程与技术》
2016年第4期61-65,共5页
Traffic Engineering and Technology for National Defence
关键词
钢桁梁架设
单端悬臂法
索塔辅助拼装
erection of steel trusses
one-end boom method
cable-tower-aided assembly
