关键词: 日照非线性温差, 桥面铺装层, 厚度, 有限元, 应力

Abstract: The main diseases of deck pavement and their importance are introduced.However,the influence of sunlight nonlinear temperature difference has no rule to follow in the current design theory of deck pavement.By choosing different deck pavement layer thickness,the contrast tests of structural stress changes of key section in various kinds of decks are analyzed respectively,through simulating the process of heating and cooling with finite element.The rules that the different deck pavement layer thickness exerts an influence on the stress have been worked out.Finally,the reasonable suggestion about the selection of the typical bridge's deck pavement layer thickness is put forward.

Key words: sunlight nonlinear temperature difference, deck pavement, thickness, finite element, stress