• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 19 Issue 4
Aug.  2006
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Article Contents
CHEN Xiaoping, WANG Ping. Distribution Regularity and Homogenization of Track Rigidity for Ballastless Turnout[J]. Journal of Southwest Jiaotong University, 2006, 19(4): 447-451.
Citation: CHEN Xiaoping, WANG Ping. Distribution Regularity and Homogenization of Track Rigidity for Ballastless Turnout[J]. Journal of Southwest Jiaotong University, 2006, 19(4): 447-451.

Distribution Regularity and Homogenization of Track Rigidity for Ballastless Turnout

  • Received Date: 20 Dec 2005
  • Publish Date: 25 Aug 2006
  • To identify the variation rule of track rigidity of a turnout laying on ballastless track,based on FEM(finite element method) a calculational model for track rigidity was established.In the model,the flexural rigidity of rails,the rigidity of fastenings,the rigidity of subgrade,slide plate,guard rail and spacer block are taken into account.The track rigidity of a Chinese No.12 speeding-up turnout,as an example,was calculated.The calculational results show that the rigidity of track is very uneven in the lognitudinal and transverse directions,the maximum ratio of total rigidity of inner rail and outer rail is 2.418,and the maximum longitudinal variety of total rigidity of inner rail reaches up to 242%.In addition,the disposal approach of rigidity of rail fastenings was discussed based on the model so as to eliminate the variety of track rigidity of a turnout and homogenize the rigidity of track.

     

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