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S.D.O.F Macro-element for Interaction of Deep Foundation  

Rha, Chang-Soon (국민대학교 건축대학)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.21, no.4, 2008 , pp. 347-355 More about this Journal
Abstract
In this paper single degree of freedom macro-element model was presented to investigate the interaction between soil and the deep foundation under the lateral loads. It was made by modelling each component related to the soil-structure interaction and combining them into one piece. It enhanced the conventional method that was not able to break down the interaction components in piece due to the usage of simple spring element for interaction. A proposed macro-element classified the stress components in relation to the interaction into frictional and compressive resistance. Each component was modelled using the classical plasticity theory, and finally combined in parallel. An example study was carried out using the proposed macro-element for deep foundation embedded in three layered cohesive soil. It showed improved results compared to the conventional method by producing additional information of the interaction components as well as the overall behavior of foundation.
Keywords
interaction; macro-element; frictional element; gap element; elastoplastic element;
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Times Cited By KSCI : 1  (Citation Analysis)
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