Prevent Buckling Brace Steel Framework Research Of Seismic Performance

Buckling restrained braces is a new kind of structural systems, merging withordinary braced steel frame advantage. The structure not only has a high strength,stiffness, high stability, good seismic performance,but also consists with nationalsustainable development requirements.In China,the research and application ofbuckling restrained braced steel frame structure started relatively late,and thedevelopment is slower.In order to promote the application of the anti-buckling support structure in the nextbuilding, in order to further improve the seismic performance of the steel frame,the issue raiseson the basis of the research of ordinary supporting steel framework, the prevent bucklingsupporting steel frame system as the research object,theoretically analyzing the bearing capacityand deformation properties, to establish a theoretical model, to give the conclusions and enrichthe buckling restrained braced steel frame theory.The main content of the research are as follows: First, by means of finite element ANSYSanalysis calculation software, to conduct a comparative analysis of the performance of theordinary braced steel frame and buckling restrained brace steel frame. To simulate the force oftwo structural system performance and anti-sway performance,and comparatively analysis thecarrying capacity, deformation and economic performance of the carrying capacity of thestructural system; Secondly, using the method of time history analysis, and the two differentseismic waves to analyze the two kinds of steel frames.Analyze the performance and features ofthe ordinary support and buckling restrained brace structure system under earthquakerespectively,in the multi-case and rare case, and comparatively analyze the different structuralsystems and the part time displacement response.Finally, by comparatively analyzing theoutcome of the support of the finite element analysis and simulation of the seismic performance and structural system in the five different arrangement,and analyzing the working mechanism ofthe system components,the research gave the main factors that affect the structuralperformance,providing the reference to the structural system to promote the development andpromotion of practical engineering applications.Through a series of theoretical analysis, simulation calculation and comparison, this issuestudied and explored the value of different forms of buckling restrained brace structure system,obtained some of the anti-buckling support the development and improvement of the structuralsystem, is a study conclusion of referential significance and reference value.