THE EFFECTS OF SOIL YIELDING ON SEISMIC RESPONSE OF SINGLE PILES

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概要

• 論文の詳細を見る

• In the seismic analysis of pile foundations the soil is often assumed to be an elastic material and the pressure at the soil pile interface is not limited during the analysis. This may result in a considerable error, as the computed pressure from an elastic analysis may go well beyond the ultimate lateral pressure of real soil. In fact, significant yielding at the soil-pile interface has been observed during real earthquakes, and also in laboratory tests. The yield zone is usually near the ground surface where the effect of inertial force due to the superstructure is higher. This yielding redefines the pile response, and in general cannot be ignored. In order to examine the effects of soil yielding on the internal pile response during earthquakes an approximate analysis is described in this paper which is an extension of a static method developed by the second author (1982) for the analysis of piles subjected to lateral soil movement. This method is then used to investigate the effects of soil yielding on the internal response of piles through a comparative study in which real earthquakes are used. It is shown that for strong earthquakes and heavily loaded piles the soil yielding may considerably increase the amount of maximum pile moment developed in the pile. A marked difference in the effects of yielding on the pile moment and shear is observed and discussed.

• 社団法人地盤工学会の論文
• 2001-06-15

著者

• Poulos H

  Senior Principal Coffey Partners International And Professor Of Civil Engineering The University Of

• TABESH ALI

  Research Assistant, Department of Civil Engineering, The University of Sydney, Sydney, NSW, 2006, Au

• POULOS HARRY

  Senior Principal, Coffey Partners International, and Professor of Civil Engineering, The University

• Tabesh Ali

  Research Assistant Department Of Civil Engineering The University Of Sydney Sydney Nsw 2006 Australi

関連論文

• MODEL TESTS ON PILE GROUPS SUBJECTED TO LATERAL SOIL MOVEMENT
• MODEL TESTS ON SINGLE PILES SUBJECTED TO LATERAL SOIL MOVEMENT
• THE EFFECTS OF SOIL YIELDING ON SEISMIC RESPONSE OF SINGLE PILES

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