000010404 001__ 10404
000010404 005__ 20141205155723.0
000010404 04107 $$aeng
000010404 046__ $$k2008-10-12
000010404 100__ $$aJin, Jianmin
000010404 24500 $$aStudy on Preyield Shear Stiffness of Differential Restoring Force Model for Lead Rubber Bearing

000010404 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010404 260__ $$b
000010404 506__ $$arestricted
000010404 520__ $$2eng$$aThis paper introduces development of differential restoring model (Bouc-Wen model) for lead rubber bearing and its application in seismic-isolation design. At present, SAP2000 and ETABS are used very widely in seismic isolation design. When the preyield shear stiffness of the Bouc-Wen model for LRB is varied, the corresponding hysteretic loop is different. The value and range of the preyield shear stiffness of the Bouc-Wen model for LRB are defined quite different according to seismic isolation codes of different countries. which may result in significant computational errors. Compression-shear tests of two different LRBs are conducted in this paper. The predicted differential restoring force model with various preyield shear stiffness ranging from 5 K d to 40 K d is considered and compared with the experimental results. Some important conclusions can be drawn from the results. An eight-story isolated building is used as the numerical example, in which the preyield shear stiffness of the LRB is chosen10 K d to 40 K d , meanwhile the stiffness of the superstructure is 100 K d , 300 K d , 500 K d for each shear stiffness of the LRB. Thus the effect of different initial shear stiffness on the structure with various natural periods can be considered and compared. Finally, a reasonable value and range of the preyield shear stiffness of the lead rubber bearing is given in design of the isolated building using commercial program such as SAP2000 or ETABS are given in this paper.

000010404 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010404 653__ $$alead rubber bearing, differential restoring force model, preyield shear stiffness, compression-shear test

000010404 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010404 720__ $$aJin, Jianmin$$iZhou, Fulin$$iTan, Ping$$iHuang, Xiangyun$$iZhuang, X.Z.$$iShen, C.Y.
000010404 8560_ $$ffischerc@itam.cas.cz
000010404 8564_ $$s210802$$uhttps://invenio.itam.cas.cz/record/10404/files/05-01-0115.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-01-0115.
000010404 962__ $$r9324
000010404 980__ $$aPAPER