Analytical Method For Elasto-Plastic Behavior Of Truss Girder Based On The Theory Of Plasticity

摘要

In analyzing huge structure, the method to substitute a beam element for truss girder is very useful. However, this method is not clear for the application to elasto-plastic problem. Besides, it is not properly that recent methods, such as a plastic hinge method apply to that reduced model. Then in this paper, we propose an analytical method for the reduced model which evaluates elasto- plastic behavior of truss girder based on the theory of plasticity. And we describe the validity of our method by comparing between the numerical results calculated by finite element method and ones calculated by using proposed model.