Research on the Value of Longitudinal Force Rate Acting on Rail Surface of Bridge under the Action of Railway Trains

被引：0
|
作者：
Li D. [1 ,2 ]
Chen H. [1 ,2 ]
Hu S. [2 ]
Shi L. [1 ,2 ]
Niu B. [1 ,2 ]
机构：
[1] Railway Engineering Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing
[2] China Academy of Railway Sciences Corporation Limited, Beijing
来源：
Zhongguo Tiedao Kexue/China Railway Science | 2023年 / 44卷 / 02期
关键词：
Braking force; Bridge length; Load diagram; Longitudinal force rate of rail surface; Positioning; Railway bridge; Traction force;
D O I：
10.3969/j.issn.1001-4632.2023.02.06
中图分类号：
学科分类号：
摘要：
Aiming at the problem that the single rate (0. 164) of longitudinal force acting on rail surface adopted by railway bridges in China does not match with the existing load diagrams, MATLAB software is used to carry out the research on the rate of longitudinal force acting on rail surface of railway bridges for different load diagrams. The results show that corresponding to different load diagrams, the rate of longitudinal force acting on rail surface of railway bridges should be determined according to the braking force and the traction force rates of rail surface separately. Corresponding to ZK and ZC load diagrams, the braking force rates of rail surface can be taken as 0. 075 and 0. 09, respectively. Corresponding to ZKH and ZH (z=1. 3) load diagrams, the braking force rates of rail surface are determined as 0. 25 and 0. 20 respectively when the bridge length is less than 18 m, 0. 06 and 0. 047 for greater than 100 m, and 0 for 18 m or 100 m while the braking forces are determined as 534 and 567 kN, respectively. Corresponding to ZK load diagrams, the traction force rates of rail surface are 0. 33 and 0. 03 respectively when the bridge length is less than 14 m or is 220 m or 360 m, and 0 for 14 m or 220 m or greater than and equal to 360 m while the traction forces of rail surface are 440 kN and 710 kN, respectively. Corresponding to ZC load diagrams, the traction force rates of longitudinal force acting on the rail surface are 0. 12, 0. 07 and 0. 05 respectively when the bridge length is less than 12 m, 12 m or 60 m, or is 60 m or 140 m, and 0 when greater than and equal to 140 m, while the traction force of rail surface is 360 kN. Corresponding to ZKH load diagrams, the traction force rate of longitudinal force acting on the rail surface is 0. 32 when the bridge length is less than 25 m, and 0 when greater than and equal to 25 m while the traction force is 850 kN. Corresponding to ZH (z=1. 3) load diagrams, the traction force rate of longitudinal force acting on rail surface is 0. 25 when the bridge length is less than 29 m, and 0 when greater than 29 m while the traction force of rail surface is 950 kN. © 2023 Chinese Academy of Railway Sciences. All rights reserved.
引用
收藏
页码：56 / 65
页数：9
相关论文
共 32 条
  • [1] (2004)
  • [2] CHEN Xiaxin, DAI Fuzhong, A Study on the Live Load Standard for Railway Bridges, China Railway Science, 18, 1, pp. 62-70, (1997)
  • [3] TB 10015—2012 Code for Design of Railway Continuous Welded Rail, (2012)
  • [4] pp. 224-228, (2012)
  • [5] WANG Ruifeng, LI Hongnian, Study of Train Braking Force on Railroad Bridge, Journal of Northern Jiaotong University, 27, 1, pp. 63-67, (2003)
  • [6] LI Hongnian, FENG Dong, Dynamic Study of Braking Force on Rail of Railway Bridge, Journal of the China Railway Society, 16, 3, pp. 112-117, (1994)
  • [7] LI Hongnian, Calculation of Maximum Longitudinal Force Acting on Rails for Railway Bridges, Journal of Northern Jiaotong University, 16, 2, pp. 46-53, (1992)
  • [8] MA Dawei, QIAN Lixin, Study on Braking Load on Bridge for High Speed Railway, Journal of the China Railway Society, 22, 5, pp. 116-120, (2000)
  • [9] LI Dongsheng, SHI Long, WANG Li, Et al., Analysis on Longitudinal Force on Pier Top of Simply Supported Girder under Locomotive Traction of Heavy Haul Railway, Railway Engineering, 60, 9, pp. 4-7, (2020)
  • [10] SHI Long, LI Dongsheng, CHEN Haorui, Experimental Research about Forces on Piers of a Railway Simply-Supported Girder Bridge under Train Braking Load, Railway Engineering, 59, 7, pp. 1-4, (2019)
1234