000011441 001__ 11441
000011441 005__ 20141205155911.0
000011441 04107 $$aeng
000011441 046__ $$k2008-10-12
000011441 100__ $$aRibakov, Y.
000011441 24500 $$aDesign of Roof Isolation Systems with Variable Friction Dampers

000011441 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011441 260__ $$b
000011441 506__ $$arestricted
000011441 520__ $$2eng$$aUsing tuned mass dampers is a well known and effective way to protect buildings from earthquakes, winds and other types of dynamic excitations. Several structures with tuned masses have demonstrated enhanced behavior. Sometimes the tuned mass displacements relative to the roof is big enough, and in order to decrease it supplemental dampers are used. Another disadvantage of tuned mass dampers is that they contribute to the static loads acting on the building. A more effective way allowing similar improvement in structural dynamic response is implementation of roof isolation systems, which require no additional mass. The current study is aimed to investigate a roof isolation system incorporating variable friction dampers (VFD). The variable friction dampers have re-centering capacity and limit displacements of the isolated roof part relative to the upper floor diaphragm. A method for selection of the dampers properties is proposed. A numerical example has been carried out on a six-story frame building subjected to three natural earthquake records. A structure with the proposed system has an enhanced seismic behavior and proves the effectiveness of the VFD in limiting the isolated roof part displacements.

000011441 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011441 653__ $$atuned mass, variable friction damper, seismic response, selection of dampers properties 

000011441 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011441 720__ $$aRibakov, Y.$$iAgranovich, G.
000011441 8560_ $$ffischerc@itam.cas.cz
000011441 8564_ $$s164225$$uhttps://invenio.itam.cas.cz/record/11441/files/05-06-0003.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-06-0003.
000011441 962__ $$r9324
000011441 980__ $$aPAPER