摘要
悬索桥是对风非常敏感的柔性结构体系。讨论了大跨径悬索桥结构的抗风问题和风振措施,细化总结了主塔、加劲梁和缆索体系的不同抗风问题和特点,以及对应的风振减弱措施。我国目前的悬索桥抗风已取得很大进展,但相关设计理论和设计方法仍然欠缺,需继续深入研究。
The suspension bridge is a flexible structure system which is very sensitive to wind. The article discusses the wind resistance problem and wind vibration measures for long-span suspension bridge, and summarizes the different wind resistance problems and characteristics of the main pylon, stiffening girder and cable system as well as the corresponding wind vibration reducing measures in detail. The great progress has been made in wind resistance of suspension bridges in China. But the related design theory and design method are still lacking, and are required to further study.
出处
《城市道桥与防洪》
2016年第8期72-74,10,共3页
Urban Roads Bridges & Flood Control
关键词
大跨桥梁
悬索桥
抗风
风振措施
long-span bridge
suspension bridge
wind resistance
wind vibration measures
