000010154 001__ 10154
000010154 005__ 20141205154147.0
000010154 04107 $$aeng
000010154 046__ $$k2008-10-12
000010154 100__ $$aHalabian, Amir M.
000010154 24500 $$aDynamic Behavior of Pile Group Considering Soil-Pile-Cap Interaction

000010154 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010154 260__ $$b
000010154 506__ $$arestricted
000010154 520__ $$2eng$$aIt is well known that the earthquake response of a pile-supported structure is strongly affected by the dynamic soil-pile interaction. In the case of weak soils or severe ground motions, group piles are often the suitable solution. In most practical cases the pile cap is sitting on the ground as well as the piles in the group. The contact between the pile cap and supporting pile is simply neglected in practice. However, with advent of fast computers, geotechnical researchers would like to reach precise and rigorous solutions. Therefore, in this research, a finite element model to take into account soil-pile-cap interaction for dynamic loads is developed. The proposed model for the soil-pile-cap (SPC) system consists of structural elements to represents piles and concrete cap, brick elements representing the soil and interface element to model the contact surfaces between soil-pile and soil-cap. Seismic response of the system is found using an explicit successive-coupling incremental solution scheme. Material nonlinearity of soil is also introduced into the model. Proper absorbing boundary conditions, simulating radiation effects are used. Developing a comprehensive study, a series of numerical analyses using dynamic finite element method are conducted to investigate affecting parameters on dynamic behavior of group-pile foundation. Along with the effect of pile-soil-cap interaction, the piles slenderness, type of piles, piles space and embedment of the pile cap is also studied. The results showed that neglecting the pile-soil-cap interaction in dynamic analysis of pile groups could lead to non-exact results in terms of the pile group response.

000010154 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010154 653__ $$apile groups, soil-pile-cap interaction, dynamic behavior 

000010154 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010154 720__ $$aHalabian, Amir M.$$iMaleki, Mohammad
000010154 8560_ $$ffischerc@itam.cas.cz
000010154 8564_ $$s378878$$uhttps://invenio.itam.cas.cz/record/10154/files/04-01-0009.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 04-01-0009.
000010154 962__ $$r9324
000010154 980__ $$aPAPER