FEM analysis of the bearing plate deflection tests on rubblized concrete pavement

• Autores: Ying Liu, Y. Sheng, L. Wang
• Localización: Bearing capacity of roads, railways and airfields: proceedings of the 8th International Conference on the Bearing Capacity of Roads, Railways and Airfields, Champaign, Illinois, USA, June 29-July 2, 2009 / Erol Tutulumluer (dir.), Imad L. Al-Qadi (dir.), Vol. 1, 2009, ISBN 9780415804325, págs. 589-595
• Idioma: inglés
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• Resumen

  • Old PCC pavements are often broken and seated by the polygonal roller, and rubblized by Multiple Head Breaker (MHB) before rehabilitation. Benkelman Beam, Falling Weight Deflectometer (FWD) and Bearing Plate tests are often conducted to determine the deflection of the broken pavements for rehabilitation design. The elastic modulus of the broken pavements is then computed based on the deflections obtained in these tests.

    This paper presents simulation of rigid and flexible bearing plate tests with 3-D Finite Element Method (FEM) to evaluate the effects due to different sizes of broken pieces of PCC pavements. The computational method and model yield results consistent with experimental measurements.