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《》 2004-02
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Unevenness analysis in the long-rail of CWR during stress releasing controlled with length

ZHOU Xiao-lin, CHEN Xiu-fang, XIANG Yan-nian (School of Civil Engineering and Architecture, Central South University, Changsha 410075,China)  
In order to study the unevenness in the long rail of continuous welded rail(CWR) and direct the correct work during stress-releasing on CWR, in this paper, accorded to the basic principles and combined with the technology of stress -releasing controlled with length in the worksite, the theoretical analyses about the uneven distribution of temperature-force and rail-fastenning temperature and displacement, produced in long rail due to stretching with rail stretcher, are dealed with. The results show that the distribution of temperature-force and rail-fastenning temperature and displacement in long rail are uneven after the long rail stretched with rail stretcher is locked. The uneven brings hidden danger on safty into the strength and the stability and the maintain on CWR. So the stress-releasing on CWR must be adjusted about evenness after the stretchy amount meets to the demand of releasing amount in order to meet to the even demand of stress-releasing on CWR.
【CateGory Index】: U213.5
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【References】
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1 HUANG Chang li,ZHONG Jian guo,ZHANG Lie lin (Electromechanic Engineering College, Changsha Railway University, Changsha 410075,China);ZNS-90 Station Ballast Cleaning Machine and the Stability Analysis of the Track[J];JOURNAL OF CHANGSHA RAILWAY UNIVERSITY;2000-03
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1 ZHAO Zhi jun,CHEN Xiu fang (Civil Architectural Engineering College, Central South University, Changsha 410075, China);The New Development for Stability Calculation Model in CWR[J];Journal of Changsha Railway University;2001-03
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