Abstract
Temperature fields and stresses of Cross Tension Retard-bonded Prestressed Concrete Pavements (CTRPCP), which are constituted by cross tension retard-bonded prestressed concrete slabs, sand gravel sliding layers, and semi-rigid bases, are studied. First, first, second, and fourth types heat transfer boundary conditions are programmed to analysis the CTRPCP’ transient temperature fields, on ABAQUS heat transfer analysis plat form. Then, the temperature fields are imported into the mechanical model to implement coupled thermo-mechanic analysis is to obtain temperature stresses of CTRPCP. On this basis, axle force gauge and vernier caliper are installed on test pavement to measure the prestressed reinforcement axial forces and displacement changes of pavement slab end with temperature changes in typical summer cloudless conditions. By comparing with the results of numerical analysis, the rationality and accuracy of the calculation model of coupled thermo-mechanical analysis of concrete pavement are verified.
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