群杭の動的インピ-ダンスの簡易算定法

URI http://harp.lib.hiroshima-u.ac.jp/it-hiroshima/metadata/4191
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Title
群杭の動的インピ-ダンスの簡易算定法
Title Alternative
Simple Method for Dynamic Impedances of Pile Groups
Author
氏名 野添 久視
ヨミ ノゾエ ヒサシ
別名 Nozoe Hisashi
Subject
Dynamic impedance
Pile-soil-pile system
Floating pile
Physical approximation
Abstract

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.

Journal Title
広島工業大学研究紀要
Volume
30
Spage
205
Epage
212
Published Date
1996
Publisher
広島工業大学
ISSN
03851672
NCID
AN0021271X
Language
jpn
NIIType
Departmental Bulletin Paper
Text Version
出版社版
Old URI
Set
it-hiroshima