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RESEARCH PRODUCT

Stochastic seismic analysis of MDOF structures with nonlinear viscous dampers

Giacomo NavarraM. Di Paola

subject

EngineeringDamping ratiobusiness.industryResponse analysisMonte Carlo methodSpectral densityBuilding and ConstructionStructural engineeringSeismic analysisDamperNonlinear systemMechanics of MaterialsbusinessResponse spectrumCivil and Structural Engineering

description

Fluid damper devices in civil structures such as buildings or bridges are commonly used as energy absorbers for seismic protection. The problem in the response analysis of structures with filled dampers mainly consists in the fact that, due to the strongly nonlinear behavior of such equipments, the response spectrum (RS) technique fails. In this paper by using the concept of power spectral density function compatible with the elastic RS and the statistical linearization technique, the equivalent damping ratio is obtained. It is shown that once the system is linearized, results obtained by Monte Carlo simulation and those obtained by stochastic analysis are in good agreement. Copyright © 2008 John Wiley & Sons, Ltd.

yearjournalcountryeditionlanguage
2009-04-01Structural Control and Health Monitoring
https://doi.org/10.1002/stc.254