複数回地震動を受ける上部構造物・杭基礎-液状化地盤系の遠心載荷実験による鋼管杭の累積損傷評価

Translated title of the contribution: Cumulative damage evaluation for collapse of steel pile in liquefied soil subjected to multiple earthquakes based on centrifugal tests of superstructure-pile foundation and liquefied soil system

Moeko Matoba, Yoshihiro Kimura, Shuji Tamura

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, centrifugal tests of a superstructure, steel piles, and the liquefied soil system are presented to clarify pile's ultimate strength and pile's cumulative damage as the pile collapses while subjected to multiple earthquakes. It is shown that the ultimate strength of the pile, which collapses when subjected to multiple shaking events, does not reach the ultimate strength curve. It is also concluded that the relationship between normalized ∑εpa, which is defined as pile's cumulative damage, and plastic deformation capacity μcmax can be evaluated using proposed equation.

Translated title of the contributionCumulative damage evaluation for collapse of steel pile in liquefied soil subjected to multiple earthquakes based on centrifugal tests of superstructure-pile foundation and liquefied soil system
Original languageJapanese
Pages (from-to)749-760
Number of pages12
JournalJournal of Structural and Construction Engineering
Volume86
Issue number783
DOIs
Publication statusPublished - 2021

ASJC Scopus subject areas

  • Architecture
  • Building and Construction

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