大跨度系杆拱桥拱梁墩交汇段模型试验研究<sup>*</sup>

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Abstract Research purposes: Yibin Jinsha River highway-railway dual-purpose bridge is one of the important control projects of Chengdu-Guiyang line, as a highway-railway double-deck rigid frame tied arch bridge. The study object of this paper is the intersection region of the main arch, column, beam and pier of the bridge, the intersection section has the characteristics of many loads, large loads, different stress directions, and there are obvious stress concentration region. Through the comparative analysis of model test results and finite element analysis, the safety of the structure is evaluated, and reasonable suggestions for the design and construction are put forward, which provides reference for the design and construction of this kind of bridge.
Research conclusions: (1) The detailed finite element analysis of the intersection section is carried out, and a 1 ∶6 scale model is designed and made to test the stress distribution, structural deformation and other stress characteristics of the model under the most unfavorable load conditions, as well as the bearing capacity under overload conditions. The results show that the structural design is reasonable and has a certain safety reserve. (2) It is suggested to add crack resistant reinforcement in the tensile area of the intersection section, strengthen the concrete vibration under the steel-concrete joint surface, and strictly control the bolt tension between the steel arch rib and the concrete arch seat to improve the construction quality. (3) The research results can provide reference for the construction of tied arch bridges of the same type.

Key words： tied arch bridge intersection finite element stress concentration model test

Received: 15 November 2021

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U24

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	WANG Chao

Cite this article:

WANG Chao. Research on the Model Tests of Intersection Section of Arch, Beam and Pier of Large-span Tied Arch Bridge[J]. Journal of Railway Engineering Society, 2023, 40(3): 39-44.

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https://tdgcxb.crec.cn/EN/ OR https://tdgcxb.crec.cn/EN/Y2023/V40/I3/39

[1]	张双洋,赵人达,贾毅,等.大跨度高速铁路劲性骨架混凝土拱桥模型试验研究[J].西南交通大学学报,2017(12):1088-1096.Zhang Shuangyang,Zhao Renda,Jia Yi,etc. Model Test Study on Long-Span Railway Concrete Arch Bridge with Rigid Skeleton[J]. Journal of Southwest Jiaotong University,2017(12):1088-1096.
[2]	易伦雄,张晔芝,徐树蕾,等.客运专线刚架系杆拱桥受力状态研究[J].湖南大学学报,2010(7):12-17.Yi Lunxiong,Zhang Yezhi,Xu Shulei,etc. Mechanical Behavior of Rigid Frame Tied-arch Bridge on Passenger Dedicated Railway[J].Journal of Hunan University,2010(7):12-17.
[3]	杨克鉴,李凤芹,张亚丽. 大跨度上承式钢管混凝土拱桥设计研究[J]. 铁道工程学报,2008(12):66-71.Yang Kejian,Li Fengqin,Zhang Yali. Research on the Design of Large Span Deck Steel Tube Concrete Arch Bridge[J].Journal of Railway Engineering Society, 2008(12):66-71.
[4]	罗甲生,李跃,王建辉,等.大跨度拱桥边拱钢拱肋与刚性系杆连接区域试验研究[J].桥梁建设,2007(1):39-42.Luo Jiasheng,Li Yue,Wang Jianhui,etc. Test Study of Connection Area Between Side Steel Arch Rib and Rigid Tie Member of Long-Span Arch Bridge[J].Bridge Construction,2007(1):39-42.
[5]	姜军,蒲黔辉,勾红叶.大跨度连续刚构拱组合桥梁拱墩结合块模型试验研究[J].公路交通科技,2010(7):69-74.Jiang Jun,Pu Qianhui,Gou Hongye,etc. Experimental Test on Model of Beam, Arch and Pier Combination Area of Long-span Continuous Rigid Frame Composite Arch Bridge[J].Journal of Highway and Transportation Research and Development,2010(7):69-74.
[6]	黄玲玉.大跨度V形墩连续钢构拱组合桥结合部模型试验研究[D].成都:西南交通大学,2009.Huang Lingyu. Model Test Study on the Joint of Long-span V-pier Continuous Steel Arch Composite Bridge[D].Chengdu: Southwest Jiaotong University,2009.
[7]	章开东.永修特大刚架系杆拱桥刚架拱稳定性和极限承载力分析[D].长沙:中南大学,2009.Zhang Kaidong. Analysis on Stability and Ultimate Bearing Capacity of Rigid Frame Tied Arch Bridge of Yongxiu Super Large Rigid Frame[D].Changsha: Central South University,2009.
[8]	勾红叶.大跨度预应力混凝土V形刚构拱组合桥受力行为研究[D].成都:西南交通大学,2010.Gou Hongye. Study on Mechanical Behavior of Long-span Prestressed Concrete V-shaped Rigid Frame Arch Composite Bridge[D].Chengdu: Southwest Jiaotong University,2010.