Temperature Field Analysis of CRTS-II Ballastless Track Slab Structure on Soil Subgrade

Abstract:

Temperature changes have a significant impact on the CRTS-II track structure in Beijing-Shanghai high-speed railway which has longitudinally connected type. In this paper temperature fields of ballastless track superstructure are simulated based on heat transfer theory and subroutine of ABAQUS that solar radiation DFLUX and ambient temperature FILM. The results showed that: the maximum temperature difference on the top of track slab is 20°C in summer and 10°C in winter; the maximum temperature difference in CA mortar layer is 4°C in summer and 2°C in winter; the maximum temperature difference in concrete substrate is 2°C in summer and 1°C in winter.

• Periodical: Applied Mechanics and Materials (Volumes 587-589)
• Pages: 1255-1261
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.587-589.1255
• Online since: July 2014
• Authors: Lei Zhao*, Lu Sun, Tong Jiang Fan
• Keywords: ABAQUS Subroutine, CRTS-Ii Superstructure, Heat Transfer Theory, Temperature Field

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