Parametrical study of the effect of the torsional resistance of the fastenings on the stability of continuous welded rail
Abstract
This work contains a parametrical study on the stability of continuous welded rail (CWR), taking in account the torsional resistance effect which appears between rail and sleepers through fastenings system. The effect of the torsional resistance was analyzed in the presence and in the absence of vehicle loading. It was considered both linear and nonlinear behavior of the fastenings. The analysis was done using a simplified bi-dimesional model of CWR, with beam elements and nonlinear lateral, longitudinal and torsional spring elements.
It was shown the influence of the different parameters which governs the behaviour of the fastenings on the stability of CWR.
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