Seismic Vulnerability and Upgrading of Nonductile Reinforced Concrete Frames Using Passive Supplemental Dampers

by P. A. Brady, U.S. Army Construction Engineering, Research Lab, Champaign, United States,
S. L. Wood, U.S. Army Construction Engineering, Research Lab, Champaign, United States,
D. A. Foutch, U.S. Army Construction Engineering, Research Lab, Champaign, United States,



Document Type: Proceeding Paper

Part of: Structural Engineering in Natural Hazards Mitigation

Abstract: The effects of vulnerable details of lightly reinforced concrete frames constructed prior to the 1970s is evaluated from tests conducted of two beam/slab/column subassemblages drawn from a prototype structural system. One of the models is fitted with viscoelastic dampers to assess their effectiveness in improving the behavior of concrete frames under earthquake loading. Results of the tests are presented.

Subject Headings: Concrete frames | Reinforced concrete | Damping | Seismic loads | Viscoelasticity | Seismic tests

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