Application Of Viscous Damper To Vibration Control For A High-rise Building Structure

This article is based on a practical project.In the project,the viscous dampers device isapplied to a Frame-supported shear wall structure.First,the vibration reduction scheme wasdetermined.And then, the present author do research about structural seismic control and windvibration control to this structure.Next,evaluate the seismic performance of this structure bydynamic elastic-plastic time-history analysis.Finally,explore the mechanism of Seismicenergy dissipation of this structure with viscous dampers.In this paper,following researchwork based on this structure has been studied:(1)This paper makes response spectra analysis and time analysis of the Frame-supportedshear wall structure.Problems about this structure under the earthquake loads and fluctuatingwind loads are pointed out.For these problems,the corresponding viscous dampers energydissipation system in structure is designed based on the building function and requirements ofthe client.(2)Check the seismic reduction effectiveness and earthquake response of building withviscous dampers device.The structural response contrastive analysis between the primarystructure and damper-added structure is made through the method of elastic time-historyresponse of the earthquake loads and fluctuating wind loads. The results show that viscousdampers device provides a better seismic performance and the performance of windresistance.(3)By conducting the time-history analysis in rare earthquake through Perform-3D,thispaper presents elastoplastic response of the primary structure and damper-added structure,andevaluates the seismic performance of the energy dissipating structure.The results show thatthe structure with viscous dampers device is a kind of ductile structure with advanced seismicbehavior.(4)On the basis of the energy theory,the thesis make energy dissipation analysis ofseismic reduction structure at different intensity of ground motions by Perform-3D.Analysisof structural seismic total input energy and distribution model of components挫cumulateddissipated hysteretic energy are made. This article also explore structural damage and failure mechanism to study the structure of the energy consumption mechanism,and study theworking condition of damper-added structure from the energy point of view,and predict theorder of structural damage挬damper beam wall column挭.The viscous damper devicecan be used as the first line seismic defence system of the structureThis study provides reference data for engineering applications of High-Rise bulidingstructures with viscous dampers device.It can also provide information for vibration reductionanalysis of complicated high-rise structures with beam-transfer storey.This research has somesignificance for structural seismic design of seismic reduction structure.