500m级双曲抛物面空间缆索人行悬索桥探讨  

Discussion on 500m Hyperbolic Parabolic Space Cable Pedestrian Suspension Bridge

作　　者：斯朗拥宗[1] 扎西罗布 Silang Yongzong;Zhaxi Luobu(College of Engineering Tibet University,Lhasa 850012,China;Transportation Survey and Design Institute of Tibet Autonomous Region,Lhasa 850000,China)

机构地区：[1]西藏大学工学院,拉萨850012 [2]西藏自治区交通勘察设计研究院,拉萨850000

出　　处：《特种结构》2020年第6期97-102,共6页Special Structures

摘　　要：本文依据超大跨径人行悬索桥的抗风稳定性要求,提出一种卵蛋拱形桥塔的双曲抛物面空间缆索人行悬索桥结构体系,平行缆索承担竖向荷载,双曲抛物面碳纤维空间缆索和抗风缆索的两套缆索体系提高抗扭刚度,协同工作,优势互补,大幅度提高空间刚度,可从根本上解决特大跨径(500m)人行悬索桥抗风稳定性问题。This paper proposed one kind of hyperbolic parabolic space cable pedestrian suspension bridge structure system with egg-shaped arched tower based on the wind resistance requirements of the super-long-span pedestrian suspension bridge.The vertical load is borne by parallel cables and the torsional stiffness is improved by hyperbolic parabolic carbon fiber space cables and wind-resistant cables.The two sets of cable systems work together and complement each other to significantly increase the space rigidity of the bridge which can fundamentally solve the problem of wind stability of super-long-span 500m pedestrian suspension bridges.

关 键 词：双曲抛物面 混合空间缆索 悬索桥 抗风稳定性 景观桥 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]