THE VIBRATION CONTROL EFFECT ANALYSIS OF TORSION COUPLING RESPONSE OF ECCENTRIC STRUCTURES WITH THE VISCOUS DAMPERS

In order to control the catastrophe problem of eccentric structure caused by the coupling vibration of torsion under the action of the earthquake effectively, based on the theory analysis and numerical calculation, the motion equation of the coupling vibration of torsion under the action of the earthquake was built, through investigating the control effect of viscous damper for eccentric structure torsion coupling vibration, it was made a comparative analysis of seismic response of the eccentric structure with viscous dampers arranged by four schemes, and also quantified the influence of the combined protection of the viscous damper and steel support on the damping effect of the eccentric structure.The results of the study show that the maximum displacement and the displacement angle of layers of the eccentric structure with the viscous damper can be controlled effectively under the double action of earthquake;the torsion can be controlled effectively with the herringbone arrangement of viscous damper under the action of multiple earthquake, the control effect of different arrangement is basically the same under the action of rare earthquake, the results can provide reference for the vibration control of torsional effect of similar eccentric structures under the action of earthquake.