000010184 001__ 10184
000010184 005__ 20141205155701.0
000010184 04107 $$aeng
000010184 046__ $$k2008-10-12
000010184 100__ $$aHarada, Takanori
000010184 24500 $$aA Nonlinear Dynamic Soil Foundation Interaction Model Using Fiber Element Method and Its Application to Nonlinear Earthquake Response Analysis of Cable Stayed Bridge

000010184 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010184 260__ $$b
000010184 506__ $$arestricted
000010184 520__ $$2eng$$aThis paper presents a multi-Winkler model for nonlinear dynamic response of foundations and its application to a nonlinear earthquake response analysis of cable-stayed bridge using the fiber element method. The nonlinear soil reactions to foundation motions are modeled by using the springs per unit area of interface between soil and foundation with 3 components corresponding to normal traction and two shear tractions on soil-foundation interface. The normal spring is modeled by a bilinear curve with no rigidity of tension and compressive capacity, for its skeleton, and a crack model, for its hysteresis loop. For the skeletons of the two shear springs, the bilinear curves with shear capacity following the Mohr-Coulomb yield criterion are used. By the Mohr-Coulomb yield criterion, the shear capacity is proportional to the normal traction and then the shapes of hysteresis loops of the two shear springs are automatically determined from the hysteresis loop of the normal traction. The resultant soil reacting forces and moments to the foundation motions are efficiently calculated by employing the fiber element method. Comparisons with the experimental hysteresis loops of rigid foundation demonstrate the potential capability of the proposed model. And also, an example of nonlinear earthquake response analysis of cable stayed bridge supported by the two caisson foundations is presented to demonstrate an applicability of the proposed model to a seismic analysis of entire system of substructure and superstructure.

000010184 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010184 653__ $$amulti-Winkler model, dynamic soil foundation interaction, fiber element method, nonlinear seismic response of bridge, earthquake nonlinear soil foundation interaction.

000010184 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010184 720__ $$aHarada, Takanori$$iNonaka, Tetsuya$$iWang, Hongze$$iMagoshi, Kazuya$$iIwamura , Maki
000010184 8560_ $$ffischerc@itam.cas.cz
000010184 8564_ $$s1421880$$uhttps://invenio.itam.cas.cz/record/10184/files/05-02-0016.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-02-0016.
000010184 962__ $$r9324
000010184 980__ $$aPAPER