Super Element Method to Analyze Creep of Combined Beam Bridge
Based on the viscoelastic constitutive relation at the multi-axle stress state, the super element method is proposed to analyze the creep of steel-concrete combined beam bridge. The generalized Maxwell model is used to describe the concrete creep behavior. The super element method is used to reduce the analysis scale. The Newton-Raphson iterative method is used to solve the creep response of structure. Taking a two-span steel-concrete continuous beam bridge as an example, the article analyzes the effect of creep on the structure, which can be referred for the similar engineering designs and practices.
【CateGory Index】： U441