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oai:it-hiroshima.repo.nii.ac.jp:00000559 2023-07-25T10:46:20Z 1:17:210

群杭の動的インピ-ダンスの簡易算定法 Simple Method for Dynamic Impedances of Pile Groups 野添, 久視 ノゾエ, ヒサシ Nozoe, Hisashi Dynamic impedance Pile-soil-pile system Floating pile Physical approximation application/pdf In this paper, a simple method of analysis based on physically approximate modelling is presented for computing the dynamic impedances of pile groups installed in a homogeneous surface stratum lying on rigid bedbrock, where the impedances play an essentially important role in coupling to structures exposed to seismic excitation. This simple method for dynamic impedances of pile groups possesses the remarkable features that the behaviour of the range from stiff and short piles to flexible and long piles is considered in the simple expression, computation of multi-order inverse-matrix or characteristic equation is not involved, and this method is applicable to various arrangement of floating piles. The verification of this method is performed from comparison with the previous analytical results of the dynamic impedances of pile groups oscillating harmonically. The results by the proposed method are sufficiently accurate and readily useful in practical situation without much computational effort. departmental bulletin paper 広島工業大学 1996 VoR application/pdf 広島工業大学研究紀要 30 205 212 AN0021271X 03851672 https://it-hiroshima.repo.nii.ac.jp/record/559/files/kenkyukiyo30205.pdf https://it-hiroshima.repo.nii.ac.jp/records/559 jpn