| The special-shaped column composed of concrete-filled steel tubes frame-shear wall structure used in high-rise steel residential buildings is a new hybrid structure.This structure system has aroused widespread concern of researchers,because of its have many advantages such as good performance,effective building use area,relatively low cost and short construction period.The prospects for the development of the structure system are very broad.At present,the research on seismic performance of this system in China is still in the blank stage,therefore,it is very important to analyze the seismic performance of the structure.So the analysis of seismic response properties of the system for four models such as without braces,with different types eccentric braces,with A shape eccentrically braces changed in the location and changing the energy dissipation beam of A shape eccentrically braces have been carried out through structural analysis and design software SAP2000.Firstly vibration mode decomposition spectrum of the structure was carried out on the analysis of the displacement,inter-story drift angle,total shear for each floor.Secondly,additional analysis was studied through flexible time-analysis of the structure under EL-Centro wave,Lanzhou wave and Taft wave on the displacement,inter-story drift angle,total shear for each floor.Research which shape eccentrically braces was most suitable for the structural system.The influence of different position on the structural stiffness is studied by changing the arrangement of A shaped braces.The influence of different energy dissipation beam with different energy dissipation beam on the structural shear stress is studied by the study of the change of A shape braces.The outer frame and the shear wall are studied to assume the shear force,and to determine whether the structure can form a double side structure system.The model of SAP2000 is built into the BIM software Tekla Structures to carry out the visualization of nodes and components。... |
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