The Seismic Behavior Study Of Knee Bracing Steel Frame Based On Pushover Method

The knee bracing steel frame is a new-kind of energy dissipating frame, which combines excellent ductility and lateral stiffness. Its elastic-plastic character is analyzed and a model which has six stories has been discussed in this paper with the nonlinear static Pushover analysis. The main study contents of thin paper are followed:(1)The paper analyzed and studied the general situation of the steel-frame system and the method of nonlinear Pushover analysis.(2)Based on the previous study, this paper has done further study to the elastic-plastic theory for the knee bracing steel.(3)The theory of the analysis method of nonlinear Pushover has been studied in the paper.(4)Using the ETABS to set up a knee bracing steel frame model, which has been analyzed by the method of Pushover, at the same time, it has studied the ability of distortion the demolish mechanism of the model under the different earthquake, from the result the paper has assessed the capability of the structure under the different earthquake, at last, the based distance has been studied which can effect the capability of the structure.