成都大学学报（自然科学版）2025，Vol.44Issue(2)：190-197,8.DOI:10.3969/j.issn.1004-5422.2025.02.011
单主缆悬索桥桥塔设计关键技术研究
Research on Key Technology used in Design of Bridge Tower of Single Main Cable Suspension Bridge
摘要
Abstract
Nanning Yinghua Bridge is a single main cable steel box girder suspension bridge with a main span of 410 m.The landscape requirements for the bridge tower are high and the structure is complex,which makes the design difficult.Combined with the shape characteristics of the cultural relics sheep horn chime bell unearthed in Guangxi,the scheme with a high arched tower is proposed.According to the geo-logical conditions of the bridge,the foundation without tie-beam is adopted.The bridge tower is a steel-concrete composite structure.The lower tower column adopts prestressed concrete structure,and the other positions adopt steel structure.The steel-concrete connection parts are connected by studs,perforated plates,prestressed steel strands,etc.,and the gradual transfer of the force between steel and concrete is ensured through multiple stress transitions.By setting multiple crisscross vertical partitions inside the up-per beam,the effective diffusion of huge vertical cable force is ensured.The overall calculation model and the bridge tower independence model are used for structural analysis.The mechanical performance of the bridge tower meets the requirements.Through the research on the key technologies used for the bridge tower design,the integration of landscape effect and structural functionality has been achieved,which has strong guiding significance for the bridge tower design of other single main cable scenic suspension bridg-es.关键词
单索面/悬索桥/钢—混凝土/组合桥塔/地系梁/壳单元Key words
single cable plane/suspension bridge/steel-concrete/composite bridge tower/foundation tie-beam/shell element分类
交通工程引用本文复制引用
林智敏,陈小平,曹发辉..单主缆悬索桥桥塔设计关键技术研究[J].成都大学学报（自然科学版）,2025,44(2):190-197,8.基金项目
四川省交通运输科技项目(2012A1-7) （2012A1-7）
