000018888 001__ 18888
000018888 005__ 20170118182245.0
000018888 04107 $$aeng
000018888 046__ $$k2017-01-09
000018888 100__ $$aSoydan, Cihan
000018888 24500 $$aDetermination of the Characteristics of a New Prestressed Lead Extrusion Damper

000018888 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018888 260__ $$b
000018888 506__ $$arestricted
000018888 520__ $$2eng$$aThe energy released by an earthquake transforms into other forms of energies through the structural system i.e. recoverable and irrecoverable energies. The supplemental damping that is provided to a structural system via supplementary damping devices increases the irrecoverable energy extent so the displacement and acceleration demands of the structure decreases. There are different types of devices which are utilizing in the diverse energy dissipating mechanisms. Lead extrusion damper (LED) is a passive energy dissipater utilizing the hysteretic energy dissipation properties of lead alloys. The LED developed in this study has not including lubricant layer and hydraulic seals. By means of its innovative design, the cap is employed to provide pre-stressing on lead core. The design aimed low-cost and more durable LEDs. Force-displacement behavior of the new LED which owns pre-stressing on the lead core was obtained for sinusoidal displacement cycles with altered frequency and amplitude targets. The effects of frequency and amplitude of the excitation on the dissipated energy (E D ) and equivalent damping ratio (ξ eq ) are investigated within the existing laboratory circumstances. The energy dissipation increases with the ascending displacement amplitudes and remains almost constant with a certain range of frequency that is adopted through the experimental program. The equivalent damping ratio is obtained as 58% on average where the minimum and maximum values are calculated as 53% and 62%, respectively.

000018888 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018888 653__ $$aEnergy dissipation; lead extrusion damper; force-displacement relationship.

000018888 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018888 720__ $$aSoydan, Cihan$$iYüksel, Ercan$$iIrtem, Erdal
000018888 8560_ $$ffischerc@itam.cas.cz
000018888 8564_ $$s786126$$uhttps://invenio.itam.cas.cz/record/18888/files/2419.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2419.
000018888 962__ $$r16048
000018888 980__ $$aPAPER