Research on Temperature Span of Ballastless Track on Large － span Concrete Bridge

CUI Li － hong; Guo Fu － an; JIANG Zhong － gui; LIU Zeng － jie

PDF(179 KB)

Journal of Railway Engineering Society ›› 2012, Vol. 29 ›› Issue (7) : 11-13.

Research on Temperature Span of Ballastless Track on Large － span Concrete Bridge

CUI Li － hong，Guo Fu － an，JIANG Zhong － gui，LIU Zeng － jie

Author information +

History +

Abstract

Research purposes: Laying the ballastless track and seamless track on the large is one of key technologies for construction of the passenger dedicated line in China and it is of a serious challenge to the bridge construction and laying ballastless track． It is a problem whether the rail overlapping device is installed or not in design of the seamless track on the large － span concrete bridge． This paper discusses the design of the ballastless track and seamless track on the large span concrete bridge．

Research conclusions: From the research on design of the ballastless track and seamless track on the large span concrete bridge and the investigation of service situation of the existent seamless track on the large concrete bridge，the following points can be concluded: ( 1) If the track temperature span of large concrete bridge with the ballstless track exceeds the certain range，the disease will happen to the track structure． ( 2) The maximum longitudinal additional force of the rail and the load on the track structure can be reduced by cutting the longitudinal resistance of the rail fastening on the bridge by using the fastening with small resistance on the bridge． ( 3) The loads on the rail and the bridge pier and the deformation of the bridge structure increase obviously with the increase of the temperature difference of the bridge．( 4) The monitoring of the seamless track on the large span bridge and the experimental research on the design parameters of the seamless track have to be strengthened．

Key words

concrete bridge / ballastless track / temperature span / seamless track

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

CUI Li － hong, Guo Fu － an, JIANG Zhong － gui, et al. Research on Temperature Span of Ballastless Track on Large － span Concrete Bridge[J]. Journal of Railway Engineering Society, 2012, 29(7): 11-13

References

［1］赵国堂．高速铁路无砟轨道结构［M］．北京: 中国铁道出版社， 2006．

Zhao Guotang． High Speed Railway Ballastless Track Structure ［M］． Beijing: China Railway Publishing House， 2006．

［2］赵煜澄．西欧铁路桥梁上的无缝线路［J］．铁道工程学报， 1999( 3) : 21 － 28．

Zhao Yucheng． Non － aperture Line on Bridge in Occident［J］． Journal of Railway Engineering Society，2011( 1) : 96 － 98．

［3］魏峰．制动力作用下铁路桥墩墩顶纵向水平刚度变化模型试验研究［J］．铁道工程学报， 2007( S) : 240 － 243．

Wei Feng． Research on the Change Model of Lengthways Level Riqidity on the Top of Railway Bridge Pier under the Brake ［J］． Journal of Railway Engineering Society，2007( S) : 240 － 243．

［4］孙立．大跨度混凝土连续梁桥上无缝线路设计方案研究［J］．中国铁路， 2004( 9) : 50 － 52．

Sun Li． Research on Design Plan of the Non － aperture Line on Long Concrete Bridge［J］． China Railway， 2004 ( 9) : 50 － 52．

［5］王庆波，姜子清，司道林．桥上纵连扳无砟相关技术问题分析［J］．铁道工程学报， 2010( 5) : 9 － 13．

Wang Qingbo，Jiang Ziqing，Si Daolin． Analytic on the Technology Problem of Ballastless Track of the Portrait Board on Bridge［J］． Journal of Railway Engineering Society， 201( 5) : 9 － 13．

［6］ Gao Liang． Study on the Regularities of Distribution of Additional Force of Jointless Rails on Bridge［C］/ /ICASS’2005， 2005．