Elastic-Plastic Analysis Method for Seismic Responses of Steel Frame-Concrete Tube Hybrid Structures

In order to perfect the method to analyze the steel-concrete hybrid structures system,according to the cooperating model of the frame-shear wall structures,and based on two-dimensional elastic-plastic analysis model and the corresponding calculation method to analyze the seismic response of the steel frame-concrete tube hybrid structures,a pseudo-three-dimension elastic-plastic seismic response analysis method is estab- lished,considering the vertical spatial restrain effects of the transverse beam between steel frame and concrete tube.It can simulate the spatial restrain effects between steel frame and concrete tube simply.Then,a case is analyzed by using the pseudo-three-dimension analysis method which considered the vertical spatial restrain.