Abstract:

This paper aims to reveal the temperature distribution in the bridge deck pavement and to provide some theoretical guidelines for the calculation of temperature stress and the material design of the bridge deck pavement. In the investigation , the atmosphere factors that affect the temperature field of the bridge deck pavement are first an-alyzed based on aerography and calorifics theories. A two-dimension calculation model of the transient temperature field is established according to the Fourier heat-transfer law. Then , the proposed model is simulated using the fi-nite element software ANSYS. The obtained results are finally compared with those of the on-the-spot survey. It is concluded that , given the correct boundary conditions and thermo-physical parameters of the pavement material , the proposed model helps to obtain precise numerical solution.

Key words: bridge deck pavement, radiation, temperature field, simulation