Abstract

This paper examines the factors that affect the results of using a test procedure to measure the longitudinal force on continuous welded rail (CWR). Rail stress, often caused by thermally induced contraction and expansion, creates large longitudinal loads which result in track buckling and broken rails. The test procedure is based on the bending beam theory of structural dynamics that considers the influence of axial loads. It is concluded that the proposed method would be useful in measuring and evaluating the rail force that is caused by changes in temperature.

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