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Analysis On Effectiveness Of Mass Eccentric Structure Using Fluid Viscous Dampers

Posted on:2013-02-28Degree:MasterType:Thesis
Country:ChinaCandidate:M JiangFull Text:PDF
GTID:2212330374966454Subject:Disaster Prevention
Abstract/Summary:PDF Full Text Request
Earthquake experience shows, eccentric structure under earthquake effect is caused bythe torsion structural seismic performance degradation is one of the important reasons, andirregular structure in building form more abundant today is hard, this is to structural seismicdesign brings very big challenge. Therefore, the structural vibration control technologyconcept for eccentric torsional effect of the structure control becomes a question worthy ofstudy and explore.The current home of the reinforced concrete eccentric structure energy dissipationresearch have been somewhat effective, but data are lacking quantitative analysis basis forengineering application, the demand is still lacking, therefore the development of eccentricstructure elastic and plastic earthquake have a certain theoretical significance.The paper mainly in the three layer of mass eccentricity of the reinforced concrete framestructure model as the object research the viscous dampers damping effect, adjust the floorlocation of the mass and different mass eccentric structure, respectively, according to differentdamper layout scheme the power of the eccentric reinforced concrete structure, processanalysis, to seek the law of viscous damper layout scheme of the eccentric structure ofreinforced concrete. The intensity of seismic loading of this article were8degrees rarelyoccurred more than8degrees once divided into two cases in accordance with the specificationof the structure, incentives. Through comparative analysis of mass eccentricity and dampingeccentricity of the eccentric structure of the damping rate of the feature points of the structure,the flexible edge displacement and the acceleration value, the feature point displacement,maximum displacement between layers, the structure end and the center displacement than theother parameters to draw some law, in order to reverse the seismic design of eccentricstructure reference.
Keywords/Search Tags:mass eccentricity, viscous damper, damping eccentricity, time-history analysis
PDF Full Text Request
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