Model tests on horizontal pile-to-pile interaction incorporating local non-linearity and resonance effects
Dynamic experimental studies on horizontal interaction factors for laterally loaded model soil–pile systems subjected to low-to-high amplitude pile head loading are reported, focusing on the effect of dynamics and local non-linearity. Results obtained from dynamic experiments with different amplitud...
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Published in | Soil dynamics and earthquake engineering (1984) Vol. 48; pp. 175 - 192 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier Ltd
01.05.2013
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Subjects | |
Online Access | Get full text |
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Summary: | Dynamic experimental studies on horizontal interaction factors for laterally loaded model soil–pile systems subjected to low-to-high amplitude pile head loading are reported, focusing on the effect of dynamics and local non-linearity. Results obtained from dynamic experiments with different amplitudes of harmonic lateral loading on instrumented model soil–pile systems conducted on a shaking table indicate that the resonance of soil–pile system shows a profound impact on the horizontal interaction factors. Furthermore, behavior of the soil–pile system becomes highly non-linear with increasing amplitude of loading, as the extent of local non-linearity around the pile increases. Consequently, group effects cannot be predicted by using established approximate equations based on the assumption of linear viscoelastic behavior. To this end, new semi-empirical equations are proposed for obtaining the horizontal interaction factors, as an extension of available approximate equations to incorporate the local non-linear behavior of soil–pile system for both small and large pile spacings.
► Horizontal pile-to-pile interaction factors are measured experimentally. ► Range of dynamic loads is used to induce low-to-high shear strains in soil. ► Local non-linearity and resonance effects of soil show profound impact on results. ► Existing approximate solutions cannot account for local soil non-linearity. ► Equations for approximation incorporating local soil non-linearity are proposed. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0267-7261 1879-341X |
DOI: | 10.1016/j.soildyn.2013.02.002 |