000010736 001__ 10736
000010736 005__ 20141205155758.0
000010736 04107 $$aeng
000010736 046__ $$k2008-10-12
000010736 100__ $$aLin, Yu-Yuan
000010736 24500 $$aKinematic Soil-Structure Interaction Effects on Maximum Inelastic Displacement Demands of SDOF Systems

000010736 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010736 260__ $$b
000010736 506__ $$arestricted
000010736 520__ $$2eng$$aThis paper presents a statistical study of the kinematic soil-foundation-structure interaction effects on the maximum inelastic deformation demands of structures. Discussed here is the inelastic displacement ratio defined as the maximum inelastic displacement demands of structures subjected to foundation input motions divide by those of structures subjected to free-field ground motions. The displacement ratio is computed for a wide period range of elasto-plastic single-degree-of-freedom (SDOF) systems with various levels of lateral strength ratios and with different sizes of foundations. Seventy-two earthquake ground motions recorded on firm soil with average shear wave velocities between 180 m/s and 360 m/s are adopted. The effects of period of vibration, level of lateral yielding strength and dimension of foundations are investigated. The results show that kinematic interaction will reduce the maximum inelastic displacement demands of structures, especially for systems with short periods of vibration, and the larger the foundation size the smaller the maximum inelastic displacement becomes. In addition, the inelastic displacement ratio is nearly not affected by the strength ratio of structures for systems with periods of vibration greater than about 0.3 s and with strength ratios smaller than about 3.0. Expressions obtained from nonlinear regression analyses are also proposed for estimating the effects of kinematic soil-foundation-structure interaction from the maximum deformation demand of the inelastic system subjected to free-field ground motions.

000010736 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010736 653__ $$ainelastic deformation demands, kinematic interaction, foundation input motion, free-field motion, strength ratio.

000010736 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010736 720__ $$aLin, Yu-Yuan
000010736 8560_ $$ffischerc@itam.cas.cz
000010736 8564_ $$s510265$$uhttps://invenio.itam.cas.cz/record/10736/files/05-01-0366.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-01-0366.
000010736 962__ $$r9324
000010736 980__ $$aPAPER