RING-PILE ANALYSIS FOR A GROUPED PILE FOUNDATION SUBJECTED TO BASE MOTION

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  • 基盤入力を受ける群杭基礎のリング杭解析法
  • 基盤入力を受ける群杭基礎のリング杭解析法〔英文〕
  • キバン ニュウリョク オ ウケル グンクイ キソ ノ リング クイ カイセキホ

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This paper presents a FEM application, with use of the substructuing concept, to the pseudo-3-dimensional dynamic analysis of soil-pile foundation-structure interaction. The grouped piles are assumed to be in a concentric arrangement and are dealt with, based on the ring-pile modeling, by adopting the n=0 and 1 Fourier harmonics for the response in circumferential direction. Taking a bridge pier on a grouped pile foundation, as an example, the investigation is addressed to the pile head impedance functions and the associated input forces due to pile-soil-pile interaction for the base motion, and the inertial interaction between foundation and structure.

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