Research On Seismic Performance Of A High-rise Frame Tube Structure

Earthquake is one of the biggest natural disaster and threat to human beings,our country is the most concentrated global continental earthquake country.In recent years,high-rise building develops quickly.Compared with the multilayer architecture,high-rise building has more layers,the stress is more complex,and the damages earthquake caused will be larger,so as the harm to the adjacent buildings.So the seismic engineering of high-rise buildings is very important.The elastoplastic time history analysis method can accurately simulate the whole earthquake process records and the seismic responses of the structure,so it is getting more and more attention.1.Based on the background of a high-rise building engineering example,the paper elaborated on high-rise building construction and structural design criterion,the design method of the structure,and design process of the main members.2.This paper emphases the analysis of the seismic response of building structure.Firstly,the paper introduces the basic theory of elastic-plastic dynamic time history analysis,using finite element analysis software SAP2000 to carry out nonlinear elastic-plastic behavior of the building and dynamic response under rare earthquake,obtained the interlayer displacement angle and the top displacement.Secondly,the construction of static elastic-plastic analysis,theoretical calculation is introduced in detail and the capacity spectrum curve as well as the angle of floor displacement curve of capacity spectrum method is adopted in this paper.3.The results of time history analysis and pushover results were compared,the static elastoplastic calculation results and the results of time history analysis has large deviations,the paper discusses the deficiencies of calculation of pushover analysis and.Through the comparative analysis the paper draw some useful conclusions.4.The structure occurred earthquake under the action of elastic plastic of behavior of the nonlinear dynamic time history analysis is analyzed by finite element analysis software ANSYS,and the comparingall analysis results,obtaining some conclusions for reference.