# [1]孙璐,段雨芬,高培培.高速铁路板式无砟轨道的结构分析模型对比[J].东南大学学报(自然科学版),2013,43(5):938-943.[doi:10.3969/j.issn.1001-0505.2013.05.007] 　Sun Lu,Duan Yufen,Gao Peipei.Comparison of structural analysis models for slab ballastless track in high-speed railway[J].Journal of Southeast University (Natural Science Edition),2013,43(5):938-943.[doi:10.3969/j.issn.1001-0505.2013.05.007] 点击复制 高速铁路板式无砟轨道的结构分析模型对比() 分享到： var jiathis_config = { data_track_clickback: true };

43

2013年第5期

938-943

2013-09-20

## 文章信息/Info

Title:
Comparison of structural analysis models for slab ballastless track in high-speed railway

1东南大学交通学院, 南京210096; 2美国天主教大学土木工程系, 华盛顿20064
Author(s):
1School of Transportation, Southeast University, Nanjing 210096, China
2Department of Civil Engineering, The Catholic University of America, Washington DC 20064, USA

Keywords:

U211.3
DOI:
10.3969/j.issn.1001-0505.2013.05.007

Abstract:
To compare the difference of the composite beam theory on elastic foundation, the beam-slab theory on elastic foundation and the finite element theory of beam-solid in force analysis, structural analysis models for ballastless tracks were established based on these three theories of structural mechanics for ballastless track. The force conditions of two kinds of slab ballastless track, CRTS(Chinese railway track system)Ⅱ and CRTS Ⅲ, on different line infrastructure structures were calculated and analyzed. The results show that the calculation results of the model based on the composite beam theory on elastic foundation are dissimilar to those of other two models due to the lack of considerations and also different from the actual force conditions for ballastless track. The bending deformation of track plate and base can be simulated well by using the model based on the beam-slab theory on elastic foundation, and the calculation results are relatively larger by 30% than those by other two models, meaning the design is relatively safer. The force and deformation of the ballastless track structure can be faithfully reflected by using the model based on the finite element theory of beam-solid; however, this computational model is complex, and therefore professional engineers are needed. Generally it can be used for research and design verification for ballastless track structure.

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