Deck Pavement Layer Mechanical Properties Of Impact Studies, Hollow Slab

In the ordinary bridge design and calculation, the influence of the on the structure performance was neglected, as the overlaid pavement and the main bridge structure not work together. But as the development of the construction method and the appliance of the new material, the durability of the pavement has been advanced, and the bonding performance between the pavement and girder has been enhanced, so the pavement can work with the girder, and the congruence effect should be considered in the calculation. Since there is little study in this domain, it is significative and valuable to research this subject by experiment and FEM analysis.Based on the design, 3 prestressed concrete beams with 10m span were made, and one of them was cast by 10cm thickness of concrete pavement, another one was cast by 10cm thickness of steel fiber concrete pavement. Then the bending performance of beams was studied, and the effects of the pavement on the void plate were analyzed. Reference to the literature on the combination structure and the test results, the calculation method of these structures were discussed. Compared the test results with the calculation results, the applicability and precision of this method were validated. The stress and deformation of 5 load cases was tested through the load test, and performance of the bridge was evaluated. Thorough the FEM analysis the calculation results was contrasted with the test results. The influence of the pavement on the calculation was studied. The influence of the parameter of the pavement on the congruence effect was investigated through the FEM calculation, and the impact of the height and material of the pavement on the transverse distribution, stress and deformation was studied. Then the practical calculation method of void concrete bridge considering the congruence effect was discussed. Also the appliance of the congruence effect in the engineer was discussed, and some advice on the bridge reinforced was advanced in the construction project of highway form XinYang to NanYang.