Damping Design And Analysis Of Viscoelastic Dampers In Frame Structure

In recent years,with the application of energy dissipation technology more and more widely,the experimental research and theoretical calculation of viscoelastic damper structure have gradually become mature.In order to promote its application in earthquake resistance,practical design method is urgently needed to solve.China has also formulated corresponding energy dissipation structure design,construction specifications and regulations.In the current "code for seismic design of buildings"(GB 50011-2010),the regulations of energy dissipation and damping design are also added.On the basis of more mature research results at home and abroad,some principles on energy dissipation and damping design are listed.Clause,but it is difficult for ordinary engineers to master and apply to practical engineering practice.The viscoelastic damper provides stiffness and damping for the structure,but it is used to simulate the existing finite element software SAP2000,which has no viscoelastic dampers.And how to design the equivalent stiffness and damping coefficient of the viscoelastic dampers has become a difficult problem in practical engineering.This makes the analysis and design of viscoelastic dampers more complicated and difficult.In this paper,the structure of the frame structure is taken as the model,and the structure design of the viscoelastic damper is studied.From the two feasible damper design theory,two kinds of design methods are summarized and optimized,and the design of the parameters in the model is realized,and two existing sticky sheets in the finite element software are used.The viscoelastic dampers are simulated by the combination,and a complete design flow chart of the viscoelastic damper is drawn to make the viscoelastic damper be better applied to the actual project.Then the damping design of viscoelastic dampers is carried out through practical engineering,and the damper parameters are designed by two methods.With the time history analysis of the finite element software,the analysis results are compared with the non dampers,and the interlayer displacement angle,the damper output,the additional damping ratio,the interlayer shear and stiffness wait for the structure in the elastic time history are compared and analyzed.The interlayer displacement angle and the damper output of the structure are compared in the elastoplastic time history.Analysis? It is proved that the two design methods can be applied to the frame structure,so that the viscoelastic dampers can play a better damping effect.The two damping design methods are all from the preliminary design of the structure,the parameter design of the damper,the analysis and calculation of the damping structure,the comparison of the additional damping ratio and the interlayer displacement angle,as well as the generation of the stiffness,forming a complete set of design flow of the viscoelastic dampers,which can be very quick for the general engineering designers.Solve and start the operation.