探讨了装配式桥梁精细化有限元计算方法,重点分析了桥面铺装、支座、截面钢筋及混凝土弹性模量的计算方法,并以20m空心板桥为例进行验证。各因素的影响次序是桥面铺装、混凝土弹性模量、截面钢筋、支座刚度,桥梁评估时应结合实测参数综合考虑各影响因素对模型参数进行修正。 This paper discusses the finite element method of the prefabricated bridge. The method of calculating the elastic modulus of the deck pavement, the support, the section rebar and the concrete is emphatically analyzed. The 20m hollow slab bridge is taken as an example to verify the method. The order of influence of each factor is the deck pavement, the elastic modulus of concrete, the section rebar and the stiffness of bearing, and the parameters of bridge should be corrected considering all the influencing factors in combination with the measured parameters.