000013199 001__ 13199
000013199 005__ 20161114160331.0
000013199 04107 $$aeng
000013199 046__ $$k2009-06-22
000013199 100__ $$aPadron L., A.
000013199 24500 $$aDynamic through-the-soil interaction between adjacent piled structures by bem-fem model

000013199 24630 $$n2.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013199 260__ $$bNational Technical University of Athens, 2009
000013199 506__ $$arestricted
000013199 520__ $$2eng$$aNot only the dynamic response of structures is highly dependent on the flexibility of the soil-foundation system and on the kinematic interaction between the foundation and the incident wave field, but it also may be significantly influenced by the presence of neighbouring structures by means of through-the-soil interaction. To address this problem in the case of adjacent piled structures, a previously developed 3D BEM-FEM coupling model for the dynamic analysis of pile foundations, where the Boundary Element Method (BEM) is used to model the soil, and the Finite Element Method (FEM) is used to model the piles as Euler-Bernoulli beams, has been enhanced to include the presence of piled structures (modeled by FEM) made up by vertical extensible piers and horizontal rigid slabs. The resulting code allows the analysis in the frequency domain of the dynamic behaviour of groups of structures, three-dimensionally arranged, founded on multilayered viscoelastic soils through one or more pile caps. This way, the dynamic behaviour of different configurations of structures subjected to S and Rayleigh waves is analysed in this paper. As a first step, the structures have been modeled as one-storey shear structures founded on 3×3 pile groups on a viscoelastic halfspace. It is shown that through-the-soil interaction between structures of similar dynamic properties affects the system response, mainly around its fundamental frequency. The seismic response of any of the structures can either increase or decrease in presence of other structures depending on the distance between adjacent buildings, i.e., there are values of this distance for which the seismic response of the system is amplified, but there are other values for which the response is attenuated, so that the structural risk diminishes in case of a seismic event.

000013199 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013199 653__ $$aSoil–structure interaction (SSI), Structure–soil–structure interaction (SSSI), Pile, Seismic response, Boundary elements, BEM–FEM coupling Abstract. Not only the dynamic response of structures is highly dependent on the flexibility of the soil-foundation system and on the kinematic interaction between the foundation and the incident wave field, but it also may be significantly influenced by the presence of neighbouring structures by means of through-the-soil interaction. To address this problem in the case of adjacent piled structures, a previously developed 3D BEM-FEM coupling model for the dynamic analysis of pile foundations, where the Boundary Element Method (BEM) is used to model the soil, and the Finite Element Method (FEM) is used to model the piles as Euler-Bernoulli beams, has been enhanced to include the presence of piled structures (modeled by FEM) made up by vertical extensible piers and horizontal rigid slabs. The resulting code allows the analysis in the frequency domain of the dynamic behaviour of groups of structures, three-dimensionally arranged, founded on multilayered viscoelastic soils through one or more pile caps. This way, the dynamic behaviour of different configurations of structures subjected to S and Rayleigh waves is analysed in this paper. As a first step, the structures have been modeled as one-storey shear structures founded on 3×3 pile groups on a viscoelastic halfspace. It is shown that through-the-soil interaction between structures of similar dynamic properties affects the system response, mainly around its fundamental frequency. The seismic response of any of the structures can either increase or decrease in presence of other structures depending on the distance between adjacent buildings, i.e., there are values of this distance for which the seismic response of the system is amplified, but there are other values for which the response is attenuated, so that the structural risk diminishes in case of a seismic event.

000013199 7112_ $$aCOMPDYN 2009 - 2nd International Thematic Conference$$cIsland of Rhodes (GR)$$d2009-06-22 / 2009-06-24$$gCOMPDYN2009
000013199 720__ $$aPadron L., A.$$iAznarez J., J.$$iMaeso, O.
000013199 8560_ $$ffischerc@itam.cas.cz
000013199 8564_ $$s524631$$uhttps://invenio.itam.cas.cz/record/13199/files/CD269.pdf$$yOriginal version of the author's contribution as presented on CD, section: Modeling and simulations of dynamic soil- structure interaction - ii (MS).
000013199 962__ $$r13074
000013199 980__ $$aPAPER