Paper Title:
Application of Semi-analytical Method in Transient Thermal Field of Pavement Structures
  Abstract

The daily temperature change of a pavement structure has an important impact on its crack production and propagation. First of all, a one-dimensional transient mathematical model of heat conduction and a heat convection boundary condition that can take solar radiation and ground radiation into account were established according to the characters of the pavement structure and heat conduction. Secondly all the computational formulae were deduced for the above model utilizing SAM. Finally, the hourly temperature field of a typical pavement structure was calculated using ANSYS and SAM respectively. Results show that SAM solutions at different depths are in good line with ANSYS solutions. Therefore, SAM is an easy-programmed, fast and high precise method, and is deserve to be popular. In addition, the daily temperature changes at different depths were discussed, and some suggestions were provided for the thermal crack control and prevention of the structure

  Info
Periodical
Chapter
Chapter 5: Road and Bridge Engineering
Edited by
Paul P. Lin and Chunliang Zhang
Pages
1289-1294
DOI
10.4028/www.scientific.net/AMM.105-107.1289
Citation
F. L. Mei, G. L. Li, "Application of Semi-analytical Method in Transient Thermal Field of Pavement Structures", Applied Mechanics and Materials, Vols. 105-107, pp. 1289-1294, 2012
Online since
September 2011
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Price
$32.00
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