摘要
基于既有城市道路,有轨电车桥梁设计需协调与现状桥涵的依存关系,并采取合理的设计方法和设计方案。通过介绍相关的技术标准和设计原则,对比分析了不同规范的相关规定;同时,总结了桥梁受力及设计要点,并结合既有项目,对地面桥和跨线桥的设计方案进行介绍分析,提出了小跨径槽型板梁的结构形式。结果表明,提出的槽型板梁的结构形式和跨线合建桥梁的设计方案是可行的,并建议现行规范中刚度的规定可适当放宽。
Based on the existing urban road system,the design of tram bridges should coordinate with the existing bridges and culverts,and adopt reasonable methods and schemes.This paper introduced the technical standards and design principles of the modern tram bridges,compared the relevant provisions in different codes.Moreover,combined with the existing tramway project,this thesis summarized the characteristics of bridge design,and analyzed the design scheme of ground bridges and cross-line bridges,presenting the new structural forms of small span channel beam.The results showed that the presented structural form of the channel beam and the design scheme of the cross-line bridge were feasible,and it was suggested that the rigidity provisions in current codes could be appropriately relaxed.
作者
杨昌荣
YANG Changrong(Shanghai Municipal Planning Design and Research Institute Co.,Ltd,Shanghai 200031,China)
出处
《交通与运输》
2020年第3期30-34,共5页
Traffic & Transportation
关键词
现代有轨电车
荷载对比
刚度对比
槽型板梁
结构选型
Modern tram
Loads comparison
Stiffness comparison
Channel beam
Structure selection
