Analysis of Temperature-Load Coupling Stress for Asphalt Overlay Using Three-Dimensional Finite Element Model

Abstract:

According to bond condition was simulated by contact unit and pavement parameters, such as temperature, load, and structural condition were given, a three-dimensional finite element model was established to analyze the temperature-load coupling stress for asphalt overlay. Effects of parameters for asphalt overlay, old cement concrete plate, joint and foundational response modulus on its temperature-load stress. Results show that the temperature-load stress of asphalt overlay is great influenced by asphalt overlay’s E1 and thickness h1, the thickness of the cement concrete slab h2, foundational response modulus k and the joint width δ. But the length L and width B of cement concrete slab, and the joint load transfer stiffness C has little effect on it. The temperature-load stress of overlay can be reduced by increasing the thickness of asphalt surface.

• Periodical: Applied Mechanics and Materials (Volumes 97-98)
• Pages: 230-234
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.97-98.230
• Online since: September 2011
• Authors: Qin Yang, Xin Hui Yu, Qing Li
• Keywords: Asphalt Overlay, Cement Concrete Pavement, Road Engineering, Temperature-Load Coupling Stress, Three-Dimensional Finite Element Modeling

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