Presently, the dominant method for calculating rail stresses and rail-tie contact is based on the model of beam on a Winkler base. One shortcoming of this analysis is that it neglects the effect of the moments which the ties exert on the rails, since when the rails deflect in the vertical plane the cross-ties in addition to displacing vertically also rotate about their axes and the ballast resists these rotations. The paper presents an improved analysis of this problem. It also suggests a simple method for the determination of the track parameters which enter the analysis and demonstrates its use on actual track test data. Paper concludes with a comparison of analytical and track test data, in order to establish the accuracy of the proposed analysis. (Perers)
An improved analysis of rail stresses and rail-tie contact forces, for a cross-tie track
Eine verbesserte Analyse der Schienenspannungen und Schienen-Schwellen-Spannungen
US Government Reports ; Jan ; 1-19
1978
19 Seiten
Report
Englisch
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