000011814 001__ 11814
000011814 005__ 20141205155949.0
000011814 04107 $$aeng
000011814 046__ $$k2008-10-12
000011814 100__ $$aTakaoka, E.
000011814 24500 $$aHeat-Mechanics Interaction Behavior of Laminated Rubber Bearings under Large and Cyclic Lateral Deformation

000011814 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011814 260__ $$b
000011814 506__ $$arestricted
000011814 520__ $$2eng$$aBase-isolation devices attached to base-isolated buildings can be subjected to larger and more cyclic deformation than anticipated as a result of long-period ground motion caused by strong earthquakes occurring in oceanic trenches. For the lead rubber bearings (LRB) and high damping rubber bearings (HDB) of damping mechanisms, the seismic energy they absorb is fundamentally transformed into thermal energy, so heat is generated causing high temperatures in the lead plug and the high damping rubber. The deterioration of damping characteristics in line with rising temperatures is a serious concern, but there is a lack of experimental data on the relationship between increased temperatures and the mechanical characteristics of rubber bearings. Based on this background, dynamic loading tests were conducted using full-scale and reduced-scale rubber bearing specimens under large deformation conditions assuming long-period ground motion to ascertain the effects of increased temperatures on the mechanical behavior of rubber bearings. The results of tests show that the temperature of the lead plug shows a rapid increase, the hysteretic curve in the force-deformation relationship becomes smaller and the yield load becomes lower with cyclic loading.

000011814 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011814 653__ $$aBase Isolation, Laminated Rubber Bearing, Long-period Ground Motion, Rising Temperature, Loading Test

000011814 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011814 720__ $$aTakaoka, E.$$iTakenaka, Y.$$iKondo, A.$$iHikita, M.$$iKitamura, H.
000011814 8560_ $$ffischerc@itam.cas.cz
000011814 8564_ $$s807173$$uhttps://invenio.itam.cas.cz/record/11814/files/05-06-0041.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-06-0041.
000011814 962__ $$r9324
000011814 980__ $$aPAPER