Abstract
Under the process of numerical analysis of fatigue failure of panel of highway reinforced concrete bridge , numerical analysis method is put forward , which can simulate process of fatigue damage degradation of the bridge deck under the vehicle load . In the first , complex vehicle load is equated simplistically on the basis of the national related tests and research with formulating load spectrum reasonably; Then modeling analysis by Midas software , it carries out that fatigue constitutive relation between steel and concrete material is correct among the flexural member under cyclic load ; Finally , an actual reinforced concrete bridge panel is predicted fatigue life and made fatigue numerical analysis . Results show that the fatigue life of the panel meets the requirements; Building material fatigue constructive relations can simulated rule of mechanics performance attenuation of steel and concrete effectively in the course of cyclic loading.
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