站区曲线钢箱梁桥稳定性探讨

李克银

铁道工程学报 ›› 2011, Vol. 28 ›› Issue (12) : 64-68.

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PDF(458 KB)
铁道工程学报 ›› 2011, Vol. 28 ›› Issue (12) : 64-68.
路网研究

站区曲线钢箱梁桥稳定性探讨

  • 李克银
作者信息 +

Discuss on the Stability of Steel - box - girder - bridge in Railway Station Area

  • LI Ke - yin
Author information +
文章历史 +

摘要

研究目的: 站区内高架桥多受铁路、站台和景观等限制,在跨度和线形等方面不尽合理。在设计受限的情况下,站区桥梁常设计为失稳风险较高的单支点曲线箱梁的形式。本文以天津西高架桥为例,研究提高其稳定性的合理措施,以保证站区高架桥的安全性和景观性的协调。
研究结论: 通过有限元方法建立计算模型,并进行针对性分析。研究结果表明,空间模型可较真实地模拟曲线钢箱梁的受力特点,选择适宜的墩梁固结措施可有效降低曲线钢箱梁的倾覆风险,同时合理选择结构的支点偏心值亦可提高结构的稳定性与安全性。文中研究结果对类似工程有一定借鉴意义。

Abstract

Research purposes: It is not rational in the span and linear for Viaduct in station area limited by railway,site,landscape and so on. With design of bridge component limited,bridges in station area are often designed as single support curved girder,which has more risk of overturning. This paper based on the analysis of the West Railway Station in Tianjin,studied the relevant measures to improve its stability and ensure the safety of viaduct in station area and the coordination of landscape.
Research conclusions: After a targeted analysis,through spatial models established by the finite element method,the data shows that spatial models can truly simulate the forcing property of single support curved girder bridges. And it also shows that,the appropriate choice of pier beam consolidation measures can effectively reduce the risk of overturning, and reasonable eccentricity of structure can improve the stability and security of different structures. It may provide reference in bridges of the same structure.

关键词

小半径曲线 / 稳定 / 墩梁固结 / 偏心

Key words

small radius curve / stability / pier beam consolidation / eccentricity

引用本文

导出引用
李克银. 站区曲线钢箱梁桥稳定性探讨[J]. 铁道工程学报, 2011, 28(12): 64-68
LI Ke - yin. Discuss on the Stability of Steel - box - girder - bridge in Railway Station Area[J]. Journal of Railway Engineering Society, 2011, 28(12): 64-68
中图分类号: U488   

参考文献

[1] 吴冲. 现代钢桥[M]. 北京: 人民交通出版社,2006.
Wu Chong. Modern Steel Bridge[M]. Beijing: China Communications Press,2006.
[2] 姚玲森. 曲线梁[M]. 北京: 人民交通出版社,1989.
Yao Lingsen. Curve Beam[M]. Beijing: China Communications Press,1989.
[3] JTJ D62—2004,公路钢筋混凝土及预应力混凝土桥涵设计规范[S].
JTJ D62—2004, Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts[S].
[4] JTG D60—2004,公路桥涵设计通用规范[S].
JTJG D60—2004,General Code for Design of Highway Bridges and Culverts[S].
[5] 姜军. 预应力混凝土连续箱梁施工控制要点[J]. 交通世界,2010( 10) : 244 -245.
Jiang Jun. Key of Construction Control of Prestressed Concrete Continuous Box[J] . Transpo World,2010 ( 10) : 244 -245.
[6] 彭建兵,程为和. 城市高架连续曲线钢箱梁设计若干问题探讨[J]. 城市道桥与防洪,2010( 1) : 15 -18.
Peng Jianbing,Cheng Weihe. Approach to Some Problems of Design of Urban Overhead Continuous Curve Steel Box Beam [J]. Urban Bridge & Flood Control,2010( 1) : 15 - 18.
[7] 王志生,李军平. 大型钢箱梁有关设计及制造细节问题的探讨[J]. 钢结构,2010( 4) : 56 -58.
Wang Zhisheng,Li Junping. Discussion on Details of Design and Manufacture of Larce Steel Box Girder[J]. Steel Construction,2010( 4) : 56 - 58.
[8] 饶波. 大跨度钢箱梁人行天桥设计[J]. 城市道桥与防洪,2010( 2) : 30 -32.
Rao Bo. Design of Large - span Steel Box Beam Pedestrian Overpass [J]. Urban Bridge & Flood Control,2010( 2) : 30 - 32.
[9] 邵旭东,张欣,李立峰. 开口加劲板稳定极限承载力分析[J]. 公路,2005( 7) : 2 -4.
Shao Xudong,Zhang Xin,Li Lifeng. Stability Analysis of Ultimate Bearing Capacity of Open Stiffened Plates[J]. Highway,2005( 7) : 2 - 4.
[10] 郑凯锋,唐继舜,王应良. 钢桥全桥全壳单元模型的空间计算方法[J]. 铁道工程学报,1997( 2) : 17 -22.
Zheng Kaifeng, Tang Jishun, Wang Yingliang. 3D Structural Analysis Method Based on All Shell Elements of Steel Bridge[J] . Journal of Railway Engineering Society 1997( 2) : 17 - 22.
 

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