Innovative Viscously Damped Rocking Braced Steel Frames
Abstract eng: An innovative braced steel frame system designed to rock at its base under strong seismic motion is proposed. The system includes viscous dampers that are vertically mounted between the foundation and the column bases to dissipate energy and control the structure lateral displacements, while limiting the impact forces induced in the columns. Dynamic cyclic loading tests performed on the individual dampers showed that their load-displacement response could be satisfactory reproduced using a simple nonlinear relationship. Earthquake simulation tests have been performed on a 1:2 reduced scale model of a two-storey viscously damped rocking braced steel frame to assess the overall performance of the system. The rocking response of the test frame could be predicted well using a simple finite element model that includes nonlinear viscous damper and gap elements.
Contributors:
Conference Title:
Conference Title:
14th World Conference on Earthquake Engineering
Conference Venue:
Bejing (CN)
Conference Dates:
2008-10-12 / 2008-10-17
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
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Record created 2014-12-05, last modified 2014-12-05
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