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[1]张思远,喻博.大跨径钢管混凝土拱桥结构稳定与动力性能研究*[J].中国安全生产科学技术,2022,18(4):185-190.[doi:10.11731/j.issn.1673-193x.2022.04.026]
　ZHANG Siyuan,YU Bo.Study on structural stability and dynamic performance of concrete-filled steel tubular arch bridge with long span[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(4):185-190.[doi:10.11731/j.issn.1673-193x.2022.04.026]
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大跨径钢管混凝土拱桥结构稳定与动力性能研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
18
期数:
2022年4期
页码:
185-190
栏目:
职业安全卫生管理与技术
出版日期:
2022-04-30

文章信息/Info

Title:
Study on structural stability and dynamic performance of concrete-filled steel tubular arch bridge with long span
文章编号:
1673-193X(2022)-04-0185-06
作者:
张思远; 喻博
（1.广州科技职业技术大学，广东 广州 510550；
2.深圳大学 土木与交通工程学院，广东 深圳 518000）
Author(s):
ZHANG Siyuan;  YU Bo
(1.Guangzhou Vocational University of Science and Technology,Guangzhou Guangdong 510550,China;
2.College of Civil and Transportation Engineering,Shenzhen University,Shenzhen Guangdong 518000,China)
关键词:
铁路桥梁; 系杆拱桥; 吊杆形式; 结构稳定; 冲击系数
Keywords:
railway bridge;  tied arch bridge;  suspender form;  structural stability;  impact coefficient
分类号:
X947；U24
DOI:
10.11731/j.issn.1673-193x.2022.04.026
文献标志码:
A
摘要:
为研究大跨径钢管混凝土拱桥结构稳定与动力性能，以某竖直双吊杆简支拱为工程背景，从拱桥吊杆设计形式和不同动力模型角度出发，研究系杆拱桥影响线特征以及不同列车激励下对桥跨结构的冲击系数。利用有限元软件ANSYS与UM（Universal Mechanism）动力学分析软件联合建模，进行仿真分析。结果表明：斜吊杆拱、网状吊杆拱刚度大、挠曲性能较好；3种吊杆设计中网状吊杆拱的稳定系数相对较大；车辆运行速度越快，对桥跨结构冲击系数越大；单节机车造成的冲击系数大于编组动车组，冲击系数随车质量的增大而减小。研究结果可为设计阶段桥型选择工作提供参考。
Abstract:
In order to study the structural stability and dynamic performance of concrete-filled steel tubular arch bridge with long span,taking a vertical double-suspender simply supported arch as the engineering background,the influence line characteristics of tied arch bridge and the impact coefficients of bridge span structure under different train excitation were studied from the perspectives of suspender design form of arc bridge and different dynamic models.The finite element software ANSYS and UM (Universal Mechanism) dynamic analysis software were used for joint modeling and simulation analysis.The results showed that the inclined suspender arch and mesh suspender arch had high rigidity and good flexural performance.In the three kinds of suspender design,the stability coefficient of mesh suspender arch was relatively larger.The faster the running speed of train,the greater the impact coefficient on the bridge span structure.The impact coefficient caused by single locomotive was greater than that caused by marshalling EMU,and the impact coefficient decreased with the increase of train mass.The research results can provide reference for the bridge type selection in design stage.

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相似文献/References:

[1]张思远,喻博.基于车桥耦合振动的高速铁路系杆拱桥吊杆优化布置*[J].中国安全生产科学技术,2021,17(4):147.[doi:10.11731/j.issn.1673-193x.2021.04.024]
　ZHANG Siyuan,YU Bo.Optimized arrangement of suspenders in tied arch bridge of high speed railway based on trainbridge coupling vibration[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2021,17(4):147.[doi:10.11731/j.issn.1673-193x.2021.04.024]

备注/Memo

备注/Memo:
收稿日期： 2021-04-08
* 基金项目： 国家自然科学基金项目（71772125）
作者简介： 张思远，硕士，主要研究方向为桥梁结构设计理论与工程应用。
更新日期/Last Update: 2022-05-13