000015738 001__ 15738
000015738 005__ 20161115135328.0
000015738 04107 $$aeng
000015738 046__ $$k2013-06-12
000015738 100__ $$aGoit, C.
000015738 24500 $$aApplicability of Principle of Superposition in Obtaining Horizontal Impedance Functions of Pile Groups Under Soil Non-Linearity

000015738 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000015738 260__ $$bNational Technical University of Athens, 2013
000015738 506__ $$arestricted
000015738 520__ $$2eng$$aThe effects of soil nonlinearity on the pile-to-pile horizontal interaction factors and horizontal impedance functions of piles through model testing are investigated. Separate experiments with a solitary pile and closely spaced 3x3-pile groups with spacing to diameter ratio of 2.5 embedded in cohesionless soil, are considered. Lateral harmonic pile-head loadings in the form of accelerations with amplitudes of 0.2, 0.5, 1 and 2 m/s2 for a wide range of frequencies are reported. Results obtained from model soil-pile systems encased in a laminar shear box show that local nonlinearity and resonant behavior of soil have a significant impact on both the interaction factors and the impedance functions. Utilizing the measured values of horizontal impedance functions of a single pile and the horizontal pile-to-pile interaction factors, Poulos’ superposition method is assessed in obtaining the horizontal impedance functions of the pile group. Comparisons between computed and experimentally measured values show very good agreement, suggesting that the principle of superposition is applicable under nonlinear conditions.

000015738 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015738 653__ $$aPile-to-pile interaction, horizontal impedance functions, principle of superposition, soil nonlinearity

000015738 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000015738 720__ $$aGoit, C.$$iSaitoh, M.$$iMylonakis, G.
000015738 8560_ $$ffischerc@itam.cas.cz
000015738 8564_ $$s630249$$uhttps://invenio.itam.cas.cz/record/15738/files/1370.pdf$$yOriginal version of the author's contribution as presented on CD, section: CD-MS 16 RECENT ADVANCES IN EXPERIMENTAL PILE DYNAMICS & SOIL-STRUCTURE INTERACTION
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000015738 962__ $$r15525
000015738 980__ $$aPAPER