000010668 001__ 10668
000010668 005__ 20141205155751.0
000010668 04107 $$aeng
000010668 046__ $$k2008-10-12
000010668 100__ $$aLi, Hui
000010668 24500 $$aStudy on Torsion Coupled Response of Non-Proportionally Damped Eccentrically Isolated Structure under Earthquake

000010668 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010668 260__ $$b
000010668 506__ $$arestricted
000010668 520__ $$2eng$$aThis paper presents a numerical investigation into non-proportionally damped eccentric isolated structures. The non-proportional damping characteristics of the isolated system is described by Rayleigh’s sub-structural damping model, a simplified equation of motion (EOM) is derived. The result of the numerical simulation shows that the eccentricity ratio of the isolation layer has apparent effect on torsional angle of the isolation layer, while has little effect on the horizontal displacement of the isolation layer and the inter story drift of superstructure and the torsional angle of the isolated layer. The increase of the eccentricity ratio of the superstructure has little effect on the horizontal displacement and torsional angle of the isolation layer, but will result in an increase in the horizontal displacement and torsional angle of the superstructure. The extent of increase of the inter story drift and the torsional angle rises with the extent of increase of the eccentricity ratio. The response of structure can be decreased markedly by enhancing damping ratio of isolation layer properly, but excessive damping in isolation layer may cause the response of superstructure to increase.

000010668 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010668 653__ $$abase isolation, eccentrically isolated structure, translation-torsion coupled vibration, non-proportional damping, time-history analysis

000010668 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010668 720__ $$aLi, Hui$$iDu, Yongfeng
000010668 8560_ $$ffischerc@itam.cas.cz
000010668 8564_ $$s170385$$uhttps://invenio.itam.cas.cz/record/10668/files/05-06-0140.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-06-0140.
000010668 962__ $$r9324
000010668 980__ $$aPAPER