000010844 001__ 10844 000010844 005__ 20141205155809.0 000010844 04107 $$aeng 000010844 046__ $$k2008-10-12 000010844 100__ $$aMaheshwari, Bal Krishna 000010844 24500 $$aEffect of Nonlinearity on the Dynamic Behavior of Pile Groups 000010844 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering 000010844 260__ $$b 000010844 506__ $$arestricted 000010844 520__ $$2eng$$aThe aim of this paper is to demonstrate the use of a hybrid method in studying the effect of nonlinearity on the seismic- behavior of the soil-pile system. The dynamic behavior of a 2*2 pile group, with a rigid pile cap is analyzed under strong ground motion. The nonlinear near-field is modeled using finite elements and the elastic far-field is modeled using a boundary finite element method – CIFECM (Consistent Infinitesimal Finite Element Cell Method). For the near-field, material-nonlinearity due to plasticity and strain hardening has been considered. The Hierarchical Single Surface (HiSS) model available in literature has been used for dealing with nonlinearity. The Hybrid Time-Frequency Domain (HTFD) method of iterative solution is used in conjunction with CIFECM to model the non-linearity and the unbounded nature of the medium respectively. The effect of material nonlinearity on seismic response of the soil-pile system is presented. 000010844 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb. 000010844 653__ $$aPile Groups, Nonlinear Analysis, Hybrid Domain, CIFECM, HiSS Soil Model 000010844 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15 000010844 720__ $$aMaheshwari, Bal Krishna$$iEmani, Pavan K. 000010844 8560_ $$ffischerc@itam.cas.cz 000010844 8564_ $$s315463$$uhttps://invenio.itam.cas.cz/record/10844/files/14-0282.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 14-0282. 000010844 962__ $$r9324 000010844 980__ $$aPAPER