山坡锚固式超大跨径空间缆索人行悬索桥探讨  

DISCUSSION ON SUPER LONG SPAN PEDESTRIAN SUSPENSION BRIDGE WITH THE SPACE SUSPENSION CABLE ANCHORED TO THE HILLSIDE

作　　者：王国华[1] 李兵[1] 王天宇 陈景宁 WANG Guo-hua;LI Bing;WANG Tian-yu;CHEN Jing-ning(Jiangsu Traffic Engineering Consulting and Supervision Co.,Ltd.,211800,Nanjing,China;College of Civil Engineering,Southeast University,211189,Nanjing,China)

机构地区：[1]江苏交通工程咨询监理有限公司,南京211800 [2]东南大学土木工程学院,南京211189

出　　处：《建筑技术》2023年第8期1006-1009,共4页Architecture Technology

基　　金：江苏省自然科学基金项目(BK2012755)。

摘　　要：为了降低峡谷景区超大跨径人行悬索桥的造价,提出一种山坡锚固式空间交叉网缆索体系的人行悬索桥。在峡谷景区两侧岩石山坡体之上,分散锚固马鞍抛物面空间交叉网缆索体系,取消桥塔结构,降低造价。相比左右两根互相分离的平行缆索体系,马鞍抛物面空间交叉网缆索体系可以产生水平向的分力,解决了人行悬索桥的大幅度侧向摆动问题,提高了峡谷景区人行悬索桥的抗风稳定性。结合某500 m级峡谷景区超大跨径人行悬索桥工程,开展动力模态分析,以便验证山坡锚固式空间缆索体系人行悬索桥的优越性。In order to reduce the cost of super long-span pedestrian suspension bridge in Canyon scenic spot,a pedestrian suspension bridge with slope anchored spatial cross network cable system is proposed.On the rocky hillsides on both sides of the Canyon scenic area,the saddle paraboloid space intersection network cable system is dispersed and anchored,and the bridge tower structure is cancelled to reduce the cost.Compared with the two parallel cable systems separated from each other,the saddle paraboloid space intersection network cable system can produce horizontal components,solve the problem of large-scale lateral swing of the pedestrian suspension bridge,and improve the wind stability of the pedestrian suspension bridge in the Canyon scenic area.Combined with a super long-span pedestrian suspension bridge project in a 500 m level Canyon scenic spot,dynamic modal analysis is carried out in order to verify the superiority of the pedestrian suspension bridge with slope anchored space cable system.

关 键 词：峡谷景区 空间缆索人行悬索桥 双曲抛物面空间网 锚固于山坡 抗风稳定性 

分 类 号：TU74[建筑科学—建筑技术科学]