000011432 001__ 11432
000011432 005__ 20141205155910.0
000011432 04107 $$aeng
000011432 046__ $$k2008-10-12
000011432 100__ $$aRen, Wenjie
000011432 24500 $$aAn Innovative Shape Memory Alloy Damper for Passive Control of Structures Subjected to Seismic Excitations

000011432 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011432 260__ $$b
000011432 506__ $$arestricted
000011432 520__ $$2eng$$aAn innovative re-centering damping device is presented. Being configurated simply, the device comprises two functional groups of superelastic SMA strands, i.e. the un-pre-tensioned strands and the pre-tensioned strands, resulting in a perfect energy dissipation compatible with a negligible residual displacement. Extensive experiments are carried out to investigate the influence of displacement amplitude and loading frequency on the mechanical behaviors of the device. While increasing the displacement amplitude, the secant stiffness reduces considerably, the energy loss increases, and the equivalent damping exhibits the maximum value at moderate displacement amplitude. The energy dissipation and the equivalent damping decrease with the increasing frequency, but the secant stiffness seems not much sensitive to frequency. Shaking table tests of a two-story steel frame demonstrate that the device not only can reduce the inter-story displacement of the structure subjected to earthquakes, but also can eliminate the residual displacement after excitations.

000011432 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011432 653__ $$ashape memory alloy, superelasticity, re-centering damping device, mechanical tests, shaking table tests

000011432 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011432 720__ $$aRen, Wenjie$$iLi, Hongnan$$iSong, Gangbing
000011432 8560_ $$ffischerc@itam.cas.cz
000011432 8564_ $$s241131$$uhttps://invenio.itam.cas.cz/record/11432/files/11-0201.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 11-0201.
000011432 962__ $$r9324
000011432 980__ $$aPAPER