Research on Train Load Diagram of 400 km/h High-Speed Railway
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摘要:
为确定适合400 km/h高速铁路的荷载图式,参考《京沪高速铁路设计暂行规定》中确定0.8UIC荷载作为高速铁路列车荷载图式所使用的方法,以包络德国ICE列车、中国ZGS和中速列车的换算均布活载动效应为原则,提出将0.65UIC荷载作为400 km/h高速铁路列车荷载图式;然后,在时速400公里高速列车作用下,对24、32、40 m 3种跨度简支梁桥,基于车桥耦合振动分析方法得到车辆动力响应,在此基础上研究动力系数、竖向挠度、梁端竖向转角和轨面不平顺等现行规范指标在0.65UIC荷载条件下的适应性;最后,讨论采用0.65UIC荷载作为设计荷载时,离心力、牵引力和制动力限值对400 km/h高速铁路列车的适应性. 结果表明:在现行规范基础上,将0.65UIC荷载作为400 km/h高速铁路列车荷载图式进行桥梁设计是可行的,采用该荷载图式计算的桥梁设计指标限值和设计荷载限值较运营车辆与桥梁间的响应具有一定安全储备.
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关键词:
- 400 km/h高速铁路 /
- 列车荷载图式 /
- 车桥耦合 /
- 简支梁桥 /
- 参数适应性分析
Abstract:To formulate the train load diagram suitable for the high-speed railway with a speed of 400 km/h, based on the principle of uniformly distributed live load effect of German ICE train, Chinese ZGS and the medium-speed train, 0.65UIC load is proposed as the train load diagram of 400 km/h high-speed railway, referring to the method of determining 0.8UIC load as the train load diagram of high-speed railway in the
Provisional Regulations on the Design of Beijing-Shanghai High Speed Railway . Then, for 24 m, 32 m and 40 m span simply supported beam bridges, get the dynamic responses of the train under the action of 400 km/h high-speed train by means of train-bridge coupling vibration analysis method, and the adaptability of dynamic coefficient, vertical deflection, vertical angle of beam end and rail surface irregularity under 0.65UIC load is studied. Finally, the adaptability of the limits of centrifugal force, traction force and braking force to the 400 km/h high-speed railway train is discussed when the 0.65UIC load is used as the design load. The results show that, on the basis of the current code, the 0.65UIC load as the train load diagram of the 400 km/h high-speed railway can be applied to bridge design, and the bridge design index limit and design load limit calculated by this load pattern have a certain safety reserve compared with the response between the operating train and bridges. -
表 1 车辆悬挂系统参数
Table 1. Parameters of the train suspension system
悬挂系统 刚度/(kN·m−1) 阻尼/(kN·s·m−1) 纵向 横向 竖向 纵向 横向 竖向 一系 14000 6000 1280 — — 10 二系 9500 220 220 4900 40 20 -
[1] 宋晓东,邱晓为,李小珍,等. 莫-喀高速铁路简支箱梁竖向下限基频研究[J]. 西南交通大学学报,2019,54(4): 709-714. doi: 10.3969/j.issn.0258-2724.20170306SONG Xiaodong, QIU Xiaowei, LI Xiaozhen, et al. Lower vertical frequency limit for simply supported box-girder on Moscow-Kazan high-speed railway line[J]. Journal of Southwest Jiaotong University, 2019, 54(4): 709-714. doi: 10.3969/j.issn.0258-2724.20170306 [2] 徐银光,李艳. 成渝中线400 km/h轮轨动车组技术指标研究[J]. 高速铁路技术,2020,11(3): 7-11.XU Yinguang, LI Yan. Research on technical indexes of 400 km/h wheel-rail EMU for Chengdu-Chongqing middle line[J]. High Speed Railway Technology, 2020, 11(3): 7-11. [3] 国家铁路局. 铁路桥涵设计规范: TB 10002—2017[S]. 北京: 中国铁道出版社, 2017. [4] 胡所亭,魏峰,王丽,等. 《铁路列车荷载图式》制定研究[J]. 中国铁路,2017,56(4): 1-7.HU Suoting, WEI Feng, WANG Li, et al. Development and research of train load schema[J]. China Railway, 2017, 56(4): 1-7. [5] International Union of Railways. Load to be considered in railway bridge design: UIC code 776-1[S]. Paris: UIC, 2006. [6] British Standards Institution. Steel, concrete and composite bridges part 2: specification for loads: BS 5400-2: 2006 [S]. London: [s.n.], 2006. [7] American Railway Engineering and Maintenance-of-way Association. Manual for railway engineering[S]. Lanham: Arema, 2010. [8] 日本铁道综合技术研究所. 铁道构造物设计标准及解说: 混凝土结构[S]. 东京: 丸善株式会社, 2006. [9] 国家铁路局. 铁路列车荷载图式: TB/T 3466—2016[S]. 北京: 中国铁道出版社, 2017. [10] 中华人民共和国铁道部. 京沪高速铁路设计暂行规定[S]. 北京: 中国铁道出版社, 2004. [11] 陈夏新,戴福忠. 铁路桥梁列车活载图式的研究[J]. 中国铁道科学,1997,18(1): 62-70.CHEN Xiaxin, DAI Fuzhong. A study on the live load standard for railway bridges[J]. China Railway Science, 1997, 18(1): 62-70. [12] 辛学忠,张玉玲. 铁路桥梁设计活载标准修订研究[J]. 铁道标准设计,2006,50(4): 1-4,31. doi: 10.3969/j.issn.1004-2954.2006.04.001XIN Xuezhong, ZHANG Yuling. Research on revision of live load standard for railway bridge design[J]. Railway Standard Design, 2006, 50(4): 1-4,31. doi: 10.3969/j.issn.1004-2954.2006.04.001 [13] 戴公连,刘文硕,李玲英. 关于高速铁路中小跨度桥梁设计活载模式的探讨[J]. 土木工程学报,2012,45(10): 161-168.DAI Gonglian, LIU Wenshuo, LI Lingying. Study of the live load for small-and medium-span bridges of high-speed railways[J]. China Civil Engineering Journal, 2012, 45(10): 161-168. [14] 王丽,蔡超勋,胡所亭. 市域铁路列车荷载图式的研究[J]. 铁道建筑,2017,57(1): 7-11. doi: 10.3969/j.issn.1003-1995.2017.01.02WANG Li, CAI Chaoxun, HU Suoting. Study on train loading scheme of urban railway[J]. Railway Engineering, 2017, 57(1): 7-11. doi: 10.3969/j.issn.1003-1995.2017.01.02 [15] 中华人民共和国住房和城乡建设部. 城市轨道交通桥梁设计规范: GB/T 51234—2017[S]. 北京: 中国建筑工业出版社, 2017. [16] 李永乐. 风-车-桥系统非线性空间耦合振动研究[D]. 成都: 西南交通大学, 2003. [17] 朱艳,李小珍,强士中. 高速铁路简支梁桥车桥系统随机响应[J]. 西南交通大学学报,2011,46(4): 535-540. doi: 10.3969/j.issn.0258-2724.2011.04.002ZHU Yan, LI Xiaozhen, QIANG Shizhong. Stochastic responses of train-bridge coupling system for simply-supported high-speed railway bridge[J]. Journal of Southwest Jiaotong University, 2011, 46(4): 535-540. doi: 10.3969/j.issn.0258-2724.2011.04.002 [18] 徐升桥. 高速铁路常用跨度桥梁技术[J]. 桥梁建设,2011,41(2): 62-65.XU Shengqiao. Techniques of common span bridges for high-speed railway[J]. Bridge Construction, 2011, 41(2): 62-65. [19] 李东昇. 高速铁路桥上CRTSⅡ型板式无砟轨道结构力学行为研究[D]. 北京: 中国铁道科学研究院, 2016. [20] 陈绪黎,许三平,向活跃,等. 400 km/h高速铁路桥梁动力系数研究[J]. 世界桥梁,2020,48(增1): 94-99.CHEN Xuli, XU Sanping, XIANG Huoyue, et al. Study of dynamic coefficient of high-speed railway bridge with speed of 400 km/h[J]. World Bridges, 2020, 48(S1): 94-99. [21] 向活跃,陈绪黎,李永乐. 基于ARMAX代理模型的车-桥耦合系统可靠性[J]. 西南交通大学学报,2022,57(6): 1217-1223,1232.XIANG Huoyue, CHEN Xuli, LI Yongle. Reliability of coupling train-bridge systems by armax surrogate model[J]. Journal of Southwest Jiaotong University, 2022, 57(6): 1217-1223,1232. [22] 李永乐,龙俊廷,向活跃,等. 基于风-车-桥的城市轨道交通桥横向挠跨比建议值研究[J]. 振动与冲击,2020,39(24): 211-217.LI Yongle, LONG Junting, XIANG Huoyue, et al. Transverse deflection-span ratio suggested value of an urban rail transit bridge based on a wind-vehicle-bridge system[J]. Journal of Vibration and Shock, 2020, 39(24): 211-217. [23] 国家铁路局. 高速铁路设计规范: TB 10621—2014[S]. 北京: 中国铁道出版社, 2015. [24] 李永乐,周新六,殷殿国. 大跨度轨道交通桥梁扭转变形及其限值[J]. 都市快轨交通,2009,22(4): 64-66. doi: 10.3969/j.issn.1672-6073.2009.04.017LI Yongle, ZHOU Xinliu, YIN Dianguo. Torsional deformations and their critical values for long-span bridges in rail transit[J]. Urban Rapid Rail Transit, 2009, 22(4): 64-66. doi: 10.3969/j.issn.1672-6073.2009.04.017 [25] 曹霞. CRH2-300型动车组的牵引/制动性能研究[D]. 成都: 西南交通大学, 2010.