Search results for " viscous dampers"

showing 2 items of 2 documents

Amplification of Interstory Drift and Velocity for the Passive Control of Structural Vibrations

2008

Mitigation of structural damage due to earthquake ground motion may be performed by inserting dampers in the structure. In order to enhance the damping effect various toggle brace configurations have been recently proposed. In this paper these equipments are analyzed in detail and compared with a new one here proposed. The analysis is performed by taking into account the inherent nonlinearities of the damper by means of stochastic analysis and validated by using time histories of recorder accelerograms and by the stochastic analysis using spectrum consistent power spectral density.

Ground motionMaterials scienceViscous damperbusiness.industryStochastic processSpectral densityStructural engineeringpassive control viscous dampers toggle-brace stochastic linearization spectrum consistent power spectral densityBraceDamperPassive controlVibrationSettore ICAR/08 - Scienza Delle Costruzionibusiness
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Experimental determination of viscous damper parameters in low velocity ranges

2017

In the last decades many strategies for seismic vulnerability mitigation of structures have been developed through analytical studies and experimental tests. Among these, energy dissipation by external devices assumes a great relevance for the relative design simplicity, even if applied to complex structures, and the effectiveness in reducing seismic demand. In particular, the use of fluid viscous dampers represents a very attractive solution because of their velocity-dependent behaviour and relatively low costs. The application on structures requires specific study under seismic excitation and a particular care of structural details. In this context the use of proper constitutive models fo…

RiskDissipation; Experimental testing; Fluid viscous dampers; Low velocity; Seismic protection; Building and Construction; Safety Risk Reliability and Quality; Geotechnical Engineering and Engineering GeologyLow velocityFluid viscous damperDissipationReliability and QualityExperimental testingFluid viscous dampersBuilding and ConstructionSafetyGeotechnical Engineering and Engineering GeologySeismic protection
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