1995 · 110 citations · 0 references
EngineeringCivil EngineeringEarthquake EngineeringSeismic DesignStructural EngineeringEarthquake Response Of StructuresSeismic Retrofit Of StructuresStructural DampingStructural DesignStructural Response AnalysisStructural SystemsInelastic DeformationReinforced ConcreteReinforced Concrete Frame RetrofitReinforced Concrete Frame StructuresSeismic RetrofitSupplemental DampingSupplemental Damping DevicesViscous Dampers
This report evaluates fluid viscous dampers used as additional braces in reinforced concrete frame structures. This is part of a larger experimental investigation of different damping devices being carried out at the University at Buffalo. The study used shaking‑table tests on a 1:3 scale reinforced concrete frame with various damping devices after simulated earthquakes and developed an analytical platform in IDARC Version 3.2 to evaluate such structures. The experimental and analytical study shows that the dampers reduce inelastic deformation demands and lower damage, as quantified by an index monitoring permanent deformations.
This report, the first in a series, presents the evaluation of fluid viscous dampers used as additional braces in reinforced concrete frame structures. This is part of a larger experimental investigation of different damping devices being carried out at the University at Buffalo. A series of shaking table tests of a 1:3 scale reinforced concrete frame incorporating a variety of damping devices were performed after the frame was damaged by prior severe (simulated) earthquakes. An analytical platform fro evaluation of structures integrating such devices was developed and incorporated in IDARC Version 3.2. The experimental and analytical study shows that the dampers can reduce inelastic deformation demands and, moreover, reduce the damage, quantified by an index monitoring permanent deformations.