Calculation of Longitudinal Force and Displacement of Seamless Turnout on Continuous Beam Bridge

CENG Zhi-ping; CHEN Xiu-fang; ZHAO Guo-fan

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CENG Zhi-ping, CHEN Xiu-fang, ZHAO Guo-fan. Calculation of Longitudinal Force and Displacement of Seamless Turnout on Continuous Beam Bridge[J]. Journal of Traffic and Transportation Engineering, 2006, 6(1): 34-38.

Citation:

CENG Zhi-ping, CHEN Xiu-fang, ZHAO Guo-fan. Calculation of Longitudinal Force and Displacement of Seamless Turnout on Continuous Beam Bridge[J]. Journal of Traffic and Transportation Engineering, 2006, 6(1): 34-38.

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Calculation of Longitudinal Force and Displacement of Seamless Turnout on Continuous Beam Bridge

1.
School of Civil and Architectural Engineering, Central South University, Changsha 410075, Hunan, China
2.
School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China

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Author Bio:
ZENG Zhi-ping(1975-), male, doctoral student, 86-731-2655611, csu_zzp@sina.com
Received Date: 2005-10-15
Publish Date: 2006-03-25

Abstract

Abstract

Rail and beam were regarded as bar elements, sleeper was regarded as beam element, fastening resistance, ballast resistance and pier stiffness were considered as spring elements, a finite element mechanics model was proposed to calculate the longitudinal force and displacement of seamless turnout on continuous beam bridge, the nonlinear equations of the model were established by variational principle and "set-in-right-position" rule, the influences of turnout design parameters on the longitudinal force and displacement were analyzed. Calculation result shows that the longitudinal force on the fixed pier of continuous beam decreases by 43.2% when the expansion joints are laid in the back of seamless turnouts, the longitudinal stiffness increase of the fixed pier leads to the decrease of rail displacement, the fixed support location of continuous beam should be taken into consideration in the system design because it influences the longitudinal force and displacement of the system.
- railway engineering,
- seamless turnout on bridge,
- finite element method,
- longitudinal force,
- displacement

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References(8)

References

[1]	LOU Yao-rong, FENG Shu-qing. Calculation Method for the Discrete Force of CWR on Railway Bridge[J]. Journal of the China Railway Society, 1987, 9 (2): 56-67. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-TDBS198504003.htm
[2]	LI Guo-qing. Study on Longitudinal Additional Forces in Continuously Welded Rails on High-Speed Railway Bridges[J]. China Railway Science, 1997, 18 (3): 15-23. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGTK703.001.htm
[3]	JI ANG Jin-zhou. Additional Longitudinal Forces in Continuously Welded Rails and Their Transmission on Railway Bridges[J]. China Railway Science, 1998, 19 (2): 67-75. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGTK802.008.htm
[4]	XU Qing-yuan, Chen Xiu-fang. Additional Longitudinal Forces Transmission between Bridges and Continuously Welded Railswith Small Resistance Fastener[J]. Journal of Traffic and Transportation Engineering, 2003, 3 (1): 25-29. (in Chinese) http://transport.chd.edu.cn/article/id/200301006
[5]	XU Qing-yuan, ZHOU Liao-lin, ZENG Zhi-ping, et al. Mechanics Model of Additional Longitudinal Force Transmission between Bridges and Continuously Welded Rails with Small Resistance Fasteners[J]. Journal of Central South Universityof Technology, 2003, 11 (3): 336-339.
[6]	CAI Cheng-biao. Calculation of Additional Longitudinal Forces in Continuously Welded Rails on Supper Large Bridges of High-Speed Railways[J]. Journal of Southwest Jiaotong University, 2003, 38 (5): 609-614. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-XNJT200305030.htm
[7]	FAN Jun-jie, GU Ai-jun, CHEN Yue-yuan. Theoretical Calculation and Testing Analysis for Continuous Welded Turnouts[J]. Journal of China Railway Society, 2000, 22 (2): 55-59. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-TDXB200002015.htm
[8]	WANG Ping, HUANG Shi-shou. Study on the Nonlinear Theory of Welded Turnout with Movable-Point Frog[J]. China Railway Science, 2001, 22 (1): 84-91. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGTK200101015.htm