MODELING OF BASE-ISOLATED BUILDINGS WITH PASSIVE DAMPERS UNDER WINDS

This paper presents dynamic analysis of base-isolated buildings under wind loads. Also considered here is the dynamics of base-isolated buil dings with passive dampers attached at the building base and/or top. A nalysis is performed using a state-space approach which models wind ve locities as a coupled set of linear stochastic differential equations. Various building-damper configurations are studied to determine effec ts of the type of dampers and their placement on the building response . A parameter study involving building and base-isolation properties i s conducted to gain insight into their influence on building response.