SIMPLIFIED ESTIMATION OF WIND-INDUCED RESPONSE CONSIDERING CREEP PROPERTY OF HIGH-RISE BASE-ISOLATED BUILDINGS WITH HIGH-FRICTION SLIDING BEARING BASED ON TIME HISTORY ANARYSIS
Base-isolation system is designed to lengthen the period of the building. However, this can also increase wind-induced responses of the structure since wind forces have long duration and predominant energy on long periods. Furthermore, the mean component in the along-wind direction also causes certain base-isolation components, such as sliding bearings to become prone to creep phenomenon. Despite of this, evaluation methods of wind-induced response considering creep property on high-rise base-isolated buildings with sliding bearings has not yet been fully investigated. Therefore, this paper examines the evaluation method on those buildings and clarifies the effect of creep property using time-history analysis.
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