Base isolation is an effective strategy for protecting buildings from seismic loads in both new construction and retrofits. However, most research focuses on testing new isolation bearings, while few studies examine the behavior of aged isolated buildings. A recent experimental program investigated a 15-year-old base-isolated residential building with 32 Friction Pendulum bearings, tested in situ using the Eucentre Mobile Laboratory. Tests, conducted with four hydraulic actuators and portable hydraulic system, followed loading protocols with harmonic cycles of varying amplitude and velocity. Preliminary results highlight aging effects on the isolation bearings and overall system response, comparing them to field data from similar testing conducted in 2009.
DYNAMIC FIELD TESTING OF A 15-YEAR-OLD BASE ISOLATED RESIDENTIAL BUILDING
Calvi, Paolo M.;Gabbianelli, Giammaria;Chalarca, Bryan;Lanese, Igor;Rizzo Parisi, Elisa;Dacarro, Filippo;
2025-01-01
Abstract
Base isolation is an effective strategy for protecting buildings from seismic loads in both new construction and retrofits. However, most research focuses on testing new isolation bearings, while few studies examine the behavior of aged isolated buildings. A recent experimental program investigated a 15-year-old base-isolated residential building with 32 Friction Pendulum bearings, tested in situ using the Eucentre Mobile Laboratory. Tests, conducted with four hydraulic actuators and portable hydraulic system, followed loading protocols with harmonic cycles of varying amplitude and velocity. Preliminary results highlight aging effects on the isolation bearings and overall system response, comparing them to field data from similar testing conducted in 2009.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
