Development of Prediction Model for Doweled Joint Concrete Pavement Using Three-Dimensional Finite Element Analysis

Abstract:

The load transfer mechanism between the dowel and the concrete is a complex phenomenon. This mechanism depends mainly on a parameter known as the modulus of dowel support (K), the value of which can be determined by load testing. A high modulus of dowel support value indicates a good contact between the concrete and the steel dowel. There is a lack of sound approach to identify with any degree of accuracy the modulus of dowel support (k), which makes it difficult to rely on the analytically developed formulas that are sensitive to its value. The obtained numerical results were validated with classical analytical solutions of shear and moment along the dowel. The group action of the dowel bar system was examined and useful relationships have been developed for estimation of the relative load shared by individual dowel bars. These useful relationships have been used to developed prediction Model to predict the shear force in dowel group action of dowel bar system and deflection at the loading nodal point. The prediction Model results for shear force in dowel group action of dowel bar system and deflection at the loading nodal point were relatively close to the F.E. Model results, with the different range between 2.2% to 7%.

• Periodical: Applied Mechanics and Materials (Volumes 587-589)
• Pages: 1047-1057
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.587-589.1047
• Online since: July 2014
• Authors: How Bing Sii, Gary W. Chai, Rudi Van Staden, Hong Guan
• Keywords: Concrete Pavement, Doweled Joint, Finite Element Analysis (FEA), Prediction Model

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