Vertical deformation difference and internal force analysis under different loading methods

Based on the model of the hybrid structure of concrete filled with steel frame-reinforced concrete core-wall, this paper is aimed at study the structure´s long-term performance under gravity, as well as all the contributions to the vertical deformation, vertical deformation differences and internal force of the structure that may affect the results of the calculation. The three-dimensional model of the structure was established using the SAP 2000 Finite Element Analysis (FEA) software. The vertical deformation differences along with the internal forces of structures are calculated and compared among three approaches of construction calculation, which are structures under lump force, approximate simulation and accurate simulation. At the same time, the pros and cons of various methods are summed up, the scope of application according to various calculation methods are defined. The results show that there are obvious differences of the deformation differences and internal forces when different approach is used for calculation.