Research On Design Method For Innovation Dissipation System Of RC Frames With Buckling Restrained Braces

The engineers from different countries commit themseves to the research on resistibility of structure so as to protect the life of people and reduce disaster of earthquake.It has formed a series of safer aseismatic theories,and the theories which based on resisting disaster are that adding strength and rigidity and tensility satisfies structure seismic fortification criterion.In recent years,the techniques of dissipating of earthquake energy have applied in many countries.Meanwhile,the countries have authorized some directories and codes on this aspect.At the present time,the national《Code for seismic design of buildings》(GB50011-2001) added some content about this.This paper introduces the design method about the structure with buckling restrained brace and advance the new design method.The researches on innovation dissipation system of RC Frames have more effective significance.The several analyses have done:1,This paper is studied for RC frame which is stiffness-insufficient in high seismic region and provides a design process of the buckling-restrained braces.2,Given the existing method and advanced new method in this paper.With a project example,story drift ratio is computed by equivalent base shear method.The floors which stiffness is not enough add the buckling-restrained braces suitably.3,The results of different method are analyses,and three different seismic waves is used to simulate in time-history analysis method by software ANSYS.4,The lay of buckling-restrained braces in structure will give birth to impact of dissipating effect and frequency of structure.At present the rightist lay of buckling-restrained braces in structure have not been made certain conformably. Meanwhile the best lay will confirm under different seismic waves.As a result,the story drift of the RC frame with buckling-restrained braces decrease distinctly, and the structure can dissipate of earthquake energy.Meanwhile the process is simpler than existing method.It should make more buckling-restrained braces participate in dissipating of earthquake energy.The story drifts of structure will approach after the lay of braces are in reason.