Study On The Method Of Viscoelastic Damper In Practical Structure

Aseismic structure when meeting or some strong motion earthquake some of the main components are allowed to plastic deformation,even failure,in order to input to the structure of energy consumption,use structure itself elastic-plastic deformation to consume energy can reduce the dynamic response,to meet the requirements of the specification,the integrity and the collapse of structure.As a popular shock-absorbing technology,energy dissipation technology has been applied more and more in the structure in recent years,which is a hot point in the future structure.This paper the mechanical properties of the viscoelastic energy dissipation device and this paper expounds the calculation model,on the basis of the theory system,finite element analysis software MIDAS GEN one eight concrete frame of the original structure model is established and added two parameters of different types of viscoelastic damping scheme of energy dissipation device model,by using response spectrum method and dynamic elastic-plastic time history analysis method are studied,the additional equivalent damping ratio to calculate the damping scheme,and the earthquake resistance of each structure and the dynamic characteristics under the action of the rarely met earthquake made a comparative analysis.The improvement of seismic performance of the structure can be obtained by comparing the results of the earthquake with the earthquake and the earthquake.Under the action of earthquake,the structure is set in the viscoelastic energy dissipation device,the structure of the damping effect is significant,the interlayer displacement and interlaminar shear and interlayer displacement Angle of the original structure has obvious decreases,and reduce the dynamic response of a structure under seismic action,top structure due to less affected by the earthquake,can decrease the energy dissipation device layout;In the process of seismic action,theoutput of viscoelastic energy dissipation and displacement are ideal,also proved its energy dissipation can give full play to the performance,so as to reduce the main structure of the earthquake damage,to improve the seismic performance of structure is significant.