Nonlinear Analysis Of Flexural Behavior In Encased H-Steel Prestressed Concrete Composite Beam

The prestressed H steel reinforced concrete composite structures is a new kind of pouring monolithically concrete with arrangement of the H-shaped steel in the reinforced cage and prestressing tendons between the flange and the bottom flange on the section steel. For such a novel combination of components, there are the right amount of test data to provide a reference. The single model test may cause "distortion" effect, however it is difficult to achieve the analysis through same test beam structural tests with a large number of different parameters. Nowadays, finite element analysis software has matured and it is uncommon in the field of structural engineering applications, this paper takes the numerical simulation analysis of this new member with the application of ANSYS and ABAQUS.Start with the domestic and international development of the Prestressed H steel reinforced concrete composite and finite element analysis software, the calculation methods about this new type of structure stiffness calculated and ultimate bearing capacity, concrete modules computational theory of ANSYS and ABAQUS and the application examples of finite element analysis software in the field of civil engineering.Based on the existing test results and the Application of ANSYS and ABAQUS, this paper establishes the combination of the component model, computing unit model selection. By contrast with existing between test values and calculated values this paper verifies the applicability of the computing unit and modeling parameters, also verifies the material force performance in each force component. At the same time, this paper takes the nonlinear analysis of the prestressed H steel reinforced concrete simply supported member with the expansion parameters, to study the influence on force component performance which has the changes of the arrangement position in beam’s cross section, the amount of steel in cross section and the different prestressed degree.This paper takes the nonlinear analysis of prestressed H-beam concrete continuous member to contrast the experimental data and numerical simulation results. In order to verify the applicability of the finite element model on the continuous beam which is a composite structure. At the same time, this paper introductes the concrete damage factor to take the nonlinear analysis of the prestressed H steel reinforced concrete continuous member and investigate plastic redistribution of internal force performance of the continuous beams.The author intended to take a deep analysis of the prestressed H steel reinforced concrete composite structures by the way of numerical simulation, to provide a theoretical basis of the design on such structures as the broad framework of space transfer beam and giant frame transfer beam in the future.