Abstract:According to the actual size of simple-supported continuous T-beam section, the parameterized model of three-span one-link medium span is established by ANSYS software. The design variables of the model are selected as horseshoe width, web thickness and roof thickness. Taking the maximum deflection of mid-span section, the positive bending moment zone of mid-span section in the using stage and the positive stress of beam end negative bending zone as the status variables, the objective function is the volume of T-beam bridge. The zero-order optimization method in its optimization module is used. The section optimization analysis of T-beam under design load is carried out under the condition of meeting the code requirements and using conditions. The section optimization size of T-beam is obtained.
