Complex High-rise Building With Transfer Plate Structure Seismic Performance Research

Transfer plate structure in the domestic application is increasing, but thetheoretical research of no transfer beam structure maturity, mechanism research is notthorough, and for conversion of the Twin Towers plate structure, in-depth research israre. Under horizontal earthquake action, seismic performance of structure transferplate in Twin Towers, need thorough research.In this paper, in order to establish the model as research object, on the TwinTowers with a slab conversion layer structure was studied, the main contents include:Application of high-rise building by finite element method and the theory ofdynamic structure analysis, using ANSYS software to establish the structural analysismodel. A transfer plate structure modal analysis, draw the structure of first twentyvibration shape and frequency, the vibration regularity of vibration characteristics.The results show that, for the band of thick plate transition Twin Towers structure,high order mode on structure influence.Based on the modal analysis of the premise, choosing earthquake wave data, themodel for the response spectrum analysis, according to the calculation results ofseismic performance curve drawing. Considering the plate thickness, tower stiffness,the location of the transfer story, structure of the chassis stiffness parameters influenceon the structure. In the structure of long and short to respectively applied toacceleration response spectrum, draw the structure in seismic acceleration spectralresponse, drawing displacement curve and the angle of floor displacement curve, andthe analysis of conversion board contained in seismic response and stress distribution. The results show that: the conversion of sheet thickness, stiffness, location, chassisstiffness parameters on structural internal force and displacement of large effect.Using software to calculation of structural dynamic response, seismic wave inputtwo classes: EL-CENTRO and TAFT waves. Considering the tower stiffness, thelocation of the transfer story, damping ratio, conversion board thickness, seismicwaves, seismic wave input method parameters influence on the structure. Conclusion:the input of two different frequency seismic wave, the structure in the resultingdisplacement and acceleration each time are not the same; conversion board thickness,tower stiffness, conversion board position, damping ratio, seismic intensity andearthquake wave direction changes in parameters such as, on the seismic response ofstructure influence.