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Influence of vehicular positions and thermal effects on structural behaviour of concrete pavement

Y. Darestani, Mostafa, P. Thambiratnam, David, Nataatmadja, Andreas, & Baweja, Daksh (2008) Influence of vehicular positions and thermal effects on structural behaviour of concrete pavement. Journal of Mechanics of Materials and Structures, 3(3), pp. 567-589.

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Abstract

Structural response of concrete pavements is influenced by the position of the axle loads and if critical load positions are not considered in concrete pavement analysis, the design may be inadequate and lead to early failure of the pavement. Whilst there has been a great deal of research conducted on concrete pavement performance and deterioration under vehicular loads and environmental forces, there is a lack of adequate information on effects of vehicular load positions on pavement responses.

Critical positions of different axle groups in uncurled and curled jointed concrete pavement with different configurations were determined in the current study. Results indicate that structural performance of concrete pavements is significantly affected by boundary conditions between concrete slab and base. Corner loading was found to be critical in bonded concrete pavement. Corner loading is also critical when a separation occurs between unbonded concrete slab and base. Furthermore, the benefits offered by unbonded boundary condition cease at a certain differential temperature. Hence, a particular care needs to be considered in project constructed in extremes of heat or cold. In presence of high differential temperature together with axle loading, joint faulting in unreinforced concrete pavements is affected by concrete slab thickness.

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ID Code: 13274
Item Type: Journal Article
Keywords: Concrete pavement, concrete, tensile stress, thermal analysis, critical position, axle group loads, crack
ISSN: 1559-3959
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2008 Mathematical Sciences Publishers
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 09 Apr 2008
Last Modified: 29 Feb 2012 23:43

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