铁道标准设计2025，Vol.69Issue(1) ：67-73.DOI:10.13238/j.issn.1004-2954.202305190007

雄商高铁黄河特大桥长联钢桁梁柔性拱设计

The Design of Flexible Arch with Long Steel Truss Girder of Xiong'an-Shangqiu High-speed Railway Yellow River Bridge

刘凯 孙宗磊 王江波 张上
铁道标准设计2025，Vol.69Issue(1) ：67-73.DOI:10.13238/j.issn.1004-2954.202305190007
✕
  • 万方数据

雄商高铁黄河特大桥长联钢桁梁柔性拱设计

The Design of Flexible Arch with Long Steel Truss Girder of Xiong'an-Shangqiu High-speed Railway Yellow River Bridge

刘凯 1孙宗磊 2王江波 1张上1
扫码查看

作者信息

  • 1. 中国铁路设计集团有限公司,天津 300308
  • 2. 中国铁路经济规划研究院有限公司,北京 100038
  • 折叠

摘要

为适应黄河河槽宽度大、地震烈度高和无砟轨道高速行车等要求,经过桥型方案比选,雄商高铁跨越黄河采用长联多孔连续钢桁梁柔性拱,孔跨布置为(60+80+4×260+280+80+60)m,联长为 1602.7 m.黄河桥主桥桁高15 m,桁宽13.8 m,采用带竖杆的三角形桁架,拱高50 m,柔性吊杆,桥面采用正交异性钢桥面板,上面铺设15 cm厚混凝土板,方便无砟轨道铺设;下部采用双柱钢筋混凝土实体桥墩,桩基础采用ϕ2.0m摩擦桩,桩基采用桩底注浆技术有效减小桩长;最后结合桥位处具体情况,采用钢桁梁悬拼、钢拱竖转的施工方案.研究结果表明:该长联钢桁梁柔性拱结构具有良好刚度,梁端转角控制为0.778‰rad,竖向刚度为 1/2107;各杆件、吊杆、锚箱和拱脚等受力复杂部位均满足规范要求;悬拼、竖转施工方案能够二次利用扣塔,同时开设多个工作面,可大幅节省工期,经济性好.该桥的设计、建设将为我国铁路长联无砟轨道钢桥的建造和发展提供借鉴和参考.

Abstract

In order to meet the requirements of wide channel of the Yellow River,high seismic intensity and high-speed running on ballastless track,after comparing and selecting bridge type schemes,Xiong'an-Shangqiu high-speed Railway adopts the flexible arch of long connected porous continuous steel truss beam across the Yellow River,and the span arrangement is(60+80+4×260+280+80+60)m with a link length of 1 602.7 m.The main bridge of the Yellow River Bridge has a truss height of 15 m and a truss width of 13.8 m.The triangular truss with vertical bars is used,the arch height is 50 m,and flexible suspenders are employed.The bridge deck is made of orthotropic steel deck,and 15 cm thick concrete slabs are laid on it to facilitate the laying of ballastless track.The lower part of the bridge adopts double column reinforced concrete solid pier,and the pile foundation adopts 2.0 m diameter friction pile with 2.0 m diameter.The pile foundation uses the pile bottom grouting technology to effectively reduce the pile length.Finally,based on the specific situation of the bridge location,a construction plan of steel truss beam suspension assembly and steel arch vertical rotation is applied.The research results indicate that the long steel truss flexible arch structure has good stiffness,with a beam end angle control of 0.778‰rad and a vertical stiffness of 1/2 107;Each member,suspension rod,anchor box,arch foot and other complex load-bearing parts meet the specification requirements;The suspension and vertical rotation construction plan can make secondary use of the tower buckle and open multiple working faces at the same time,which can greatly save the construction time and have good economic efficiency.The design and construction of the bridge will provide references for the construction and development of the long ballastless track steel bridge of China's railways.

关键词

高速铁路/铁路桥/黄河特大桥/长联/钢桁梁柔性拱/无砟轨道/悬臂拼装法/钢拱竖转

Key words

high-speed railway/railway bridge/Yellow River Large Bridge/long couplet/steel truss beam flexible arch/ballastless/cantilever assembly method/steel arch vertical rotation

引用本文复制引用

出版年

2025
铁道标准设计
中铁工程设计咨询集团有限公司

铁道标准设计

北大核心
影响因子：1.129
ISSN：1004-2954
段落导航相关论文