[1]付琪璋,安震,李佳静,等.32mT型梁梁端变形对无砟轨道扣件受力规律研究[J].高速铁路技术,2024,(02):10-16.[doi:10.12098/j.issn.1674-8247.2024.02.002]
　FU Qizhang,AN Zhen,LI Jiajing,et al.Study on Effect of Deformations at the Ends of 32 m T-girder on Stress Distribution of Ballastless Track Fasteners[J].HIGH SPEED RAILWAY TECHNOLOGY,2024,(02):10-16.[doi:10.12098/j.issn.1674-8247.2024.02.002]
点击复制

32mT型梁梁端变形对无砟轨道扣件受力规律研究()
分享到：

《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
期数:
2024年02期
页码:
10-16
栏目:
理论探索
出版日期:
2024-04-30

文章信息/Info

Title:
Study on Effect of Deformations at the Ends of 32 m T-girder on Stress Distribution of Ballastless Track Fasteners
文章编号:
1674-8247(2024)02-0010-07
作者:
付琪璋1; 安震2; 李佳静1; 万廷聪3
1.中铁第一勘察设计院集团有限公司，西安710043;2.中国铁路沈阳局集团有限公司，沈阳110001;3.鲁南高速铁路有限公司，济南 250000
Author(s):
FU Qizhang1; AN Zhen2; LI Jiajing1; WAN Tingcong3
1.China Railway First Survey and Design Institute Group Co. ，Ltd. ，Xi’an? 710043 ，China;2.China Railway Shenyang Bureau Group Co. ，Ltd. ，Shenyang? 110001 ，China;3.Lunan High Speed Railway Co. ，Ltd. ，Jinan? 250000 ，China
关键词:
无砟轨道; T型梁; 梁端变形; 扣件; 上拔力
Keywords:
ballastless track; T-girder; girder-end deformation; fasteners; uplift force
分类号:
U213.5+3
DOI:
10.12098/j.issn.1674-8247.2024.02.002
文献标志码:
A
摘要:
无砟轨道扣件实现了钢轨与混凝土道床、下部基础的连接。扣件受力除轮轨作用下的正常服役工作状态外，还包括桥梁地段梁端变形诱发扣件受力状态变化。为保障桥梁地段无砟轨道扣件正常服役状态，本文以32mT型梁为载体，通过分析梁端转角、垂向位移、预留梁缝及扣件安装位置等变量，研究了T型梁梁端变形及接口构造对无砟轨道扣件受力的影响。结果表明：梁端变形引起的扣件上拔力与梁端转角、垂向位移及转角位移组合变形线性相关，提出了不同构造变量与扣件上拔力的线性表达式。研究成果可为客货共线桥梁铺设无砟轨道梁端变形控制及构造设计提供参考。
Abstract:
For ballastless track，fasteners are used to connect the steel rails with the concrete track bed and the underlying foundation. In addition to the load under the normal service conditions of wheel-rail interaction，the fasteners also encompasses stress variations due to deformation at the ends of girders in bridge sections. To ensure the normal service state of the ballastless track fasteners in bridge sections，this paper took 32 m T-girder as the example，to analyze variables such as rotation angle at girder end，vertical displacement，reserved girder gaps，and fastener installation position，and assess the impact of T-girder end deformations and joint structure on the force exerted on ballastless track fasteners. The results show that the uplift force on the fasteners caused by girder-end deformation is linearly related to the rotation angle at girder end，the vertical displacement，and the combined deformation of rotation and displacement. Linear expressions between different structural variables and the uplift force on the fasteners are proposed. The findings can provide a reference for controlling end deformations of T-girders and for the structural design in the construction of ballastless tracks on bridges of mixed passenger and freight railway.

参考文献/References:

［1］? 赵坪锐，肖杰灵，刘学毅. 梁端位移对无砟轨道扣件系统的影响分析［J］. 铁道学报，2008，30(5)：68-73. ZHAO Pingrui，XIAO Jieling，LIU Xueyi. The Influence of the Displacement at Bridge Ends to the Fastening Systems Used on Ballastless Tracks［J］. Journal of the China Railway Society，2008， 30(5)：68-73.
［2］? 丁敏旭. 客运专线无碴轨道梁端扣件上拔力研究［J］. 科学技术与工程，2011，11(16)：3709-3713，3724. DING Minxu. Study on Uplift Force of the Fasteners for Bridge Ends of the Unballast Track on Passenger Dedicated Line［J］. Science Technology and Engineering，2011，11(16)：3709-3713，3724.
［3］? 王其昌. 无碴轨道钢轨扣件［M］. 成都：西南交通大学出版社， 2006. WANG Qichang. Ballastless Track Rail Fastener［M］. Chengdu：Southwest Jiaotong University Press，2006.
［4］? 魏亚辉，徐鹤寿，牛斌. 梁端无砟轨道扣件力学行为室内试验研究和数值仿真分析［J］. 中国铁道科学，2010，31(6)：43-49. WEI Yahui，XU Heshou，NIU Bin. Laboratory Test and Numerical Analysis on the Mechanical Behaviors of the Slab Track Fastener Due to the Beam-ending Deformation［J］. China Railway Science，2010， 31(6)：43-49.
［5］? 郭恭兵，韦凯，谢朝川，等. DZⅢ型扣件铁垫板上横向力传递规律及影响因素分析［J］. 铁道科学与工程学报，2023，20(5)：1677-1686. GUO Gongbing，WEI Kai，XIE Chaochuan，et al. Lateral Force Transmission Law and Influencing Factors on DZⅢ Fastener Iron Plate［J］. Journal of Railway Science and Engineering，2023，20(5)：1677-1686.
［6］? 高亮，赵闻强，侯博文. 扣压力失效状态下WJ-8扣件垂向力学行为研究［J］. 工程力学，2020，37(11)：228-237. GAO Liang，ZHAO Wenqiang，HOU Bowen. Research on Vertical Mechanical Behavior of WJ-8 Fastener under Clamping Force Failure ［J］. Engineering Mechanics，2020，37(11)：228-237.
［7］? 齐少轩，刘学毅. 地铁弹条Ⅱ型分开式扣件力学特性研究［J］.铁道标准设计，2014，58(9)：40-43. QI Shaoxuan，LIU Xueyi. Research of Mechanics Characteristics of Elastic Bar Ⅱ Separated Rail Fastening［J］. Railway Standard Design，2014，58(9)：40-43.
［8］? 申磊. 减小梁端轨道结构受力措施研究［J］. 铁道工程学报， 2010，27(8)：58-61. SHEN Lei. Study on Measures for Decreasing Forces on Track Structure at Girder End［J］. Journal of Railway Engineering Society，2010，27(8)：58-61.
［9］? 张岷. 双块式无砟轨道桥梁梁端扣件系统力学分析［J］. 铁道工程学报，2009，26(2)：56-59，63. ZHANG Min. Mechanics Analysis of the Rail Fastening of Bi-block Ballastless Track on the Bridge Terminal［J］. Journal of Railway Engineering Society，2009，26(2)：56-59，63.
［10］?杨文茂，林红松，徐井芒，等. 客货共线铁路简支梁上无砟轨道无缝道岔纵向受力分析［J］. 高速铁路技术，2023，14(2)：13-18，47. YANG Wenmao，LIN Hongsong，XU Jingmang，et al. Longitudinal Stress Analysis of Continuously Welded Rail Turnout of Ballastless Track on Simply-supported Girder of Mixed Passenger and Freight Railway［J］. High Speed Railway Technology，2023，14(2)：13-18，47.
［11］?田春香. 坡度对连续梁桥梁端扣件上拔力的影响研究［J］. 铁道工程学报，2015，32(11)：62-67. TIAN Chunxiang. Research on the Influence of Bridge Slope on Uplift Force of the Fasteners at Continuous Beam Ends［J］. Journal of Railway Engineering Society，2015，32(11)：62-67.
［12］?冯玉林，蒋丽忠，曾永平，等. 连续梁桥典型变形对轨道几何形位演变的影响［J］. 铁道工程学报，2021，38(1)：91-96. FENG Yulin，JIANG Lizhong，ZENG Yongping，et al. Influence of the Typical Deformation of Continuous Beam Bridge on the Track Geometry Evolution［J］. Journal of Railway Engineering Society， 2021，38(1)：91-96.
［13］?易南福，殷明旻. 梁端无砟轨道扣件系统受力分析［J］. 高速铁路技术，2012，3(6)：40-43. YI Nanfu，YIN Mingmin. Analysis on Fastening Force of Ballastless Track System of the Beam End［J］. High Speed Railway Technology，2012，3(6)：40-43.
［14］?蔡小培，高亮，孙汉武，等. 桥上纵连板式无砟轨道无缝线路力学性能分析［J］. 中国铁道科学，2011，32(6)：28-33. CAI Xiaopei，GAO Liang，SUN Hanwu，et al. Analysis on the Mechanical Properties of Longitudinally Connected Ballastless Track Continuously Welded Rail on Bridge［J］. China Railway Science， 2011，32(6)：28-33.
［15］?李志红. 广珠城际轨道交通梁端轨道结构受力变形分析［J］. 铁道建筑技术，2009(12)：15-17，31. LI Zhihong. Analysis of Stress and Deformation of Beam-end Track Structure for Guangzhou-Zhuhai Intercity Rail Transit［J］. Railway Construction Technology，2009(12)：15-17，31.
［16］?马战国，许绍辉，尤瑞林. 梁端位移对明桥面桥扣件受力的影响分析［J］. 铁道建筑，2010，50(2)：117-120. MA Zhanguo，XU Shaohui，YOU Ruilin. Analysis of the Influence of Beam End Displacement on the Stress of Fasteners of Open Deck Bridge［J］. Railway Engineering，2010，50(2)：117-120.［17］?申磊，刘学毅，赵坪锐. VOSSLOH 300 扣件上拔力计算方法研究［J］. 四川建筑，2008，28(6)：51-53，55. SHEN Lei，LIU Xueyi，ZHAO Pingrui. Study on Calculation Method of Pullout Force of VOSSLOH 300 Fastener［J］. Sichuan Architecture，2008，28(6)：51-53，55.

相似文献/References:

[1]代丰,林红松,杨文茂,等.中美桥上无砟轨道设计荷载计算方法对比研究[J].高速铁路技术,2023,(03):43.[doi:10.12098/j.issn.1674-8247.2023.03.009]
　DAI Feng,LIN Hongsong,YANG Wenmao,et al.Comparative Study on Calculation Methods for Design Loads of Ballastless Tracks on Bridges Based on Chinese and American Standards[J].HIGH SPEED RAILWAY TECHNOLOGY,2023,(02):43.[doi:10.12098/j.issn.1674-8247.2023.03.009]

备注/Memo

备注/Memo:
收稿日期：2023-12-07
作者简介：付琪璋(1985-)，男，高级工程师。
基金项目：陕西省重点研发计划项目(2022SF-452)
更新日期/Last Update: 2024-04-30