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Numerical study of group effects for pile groups in sands
Author(s) -
Yang Zhaohui,
Jeremić Boris
Publication year - 2003
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/nag.321
Subject(s) - pile , bending moment , opensees , centrifuge , structural engineering , moment (physics) , perpendicular , geotechnical engineering , finite element method , group (periodic table) , bending , moment distribution method , engineering , geology , mathematics , geometry , physics , classical mechanics , parametric statistics , statistics , nuclear physics , quantum mechanics
Abstract The OpenSees finite element framework was used to simulate the response of 3×3 and 4×3 pile groups founded in loose and medium dense sands. Several numerical static pushover tests were conducted to investigate the interaction effects for pile groups. The results were then compared with those from centrifuge study. It is shown that our simulations can predict the behaviour of pile groups with good accuracy. Special attention was given to the three dimensional distribution of bending moment. It was found that bending moment develops in the plane perpendicular to the loading direction. In addition, bending moment data from simulations was used to derive p – y curves for individual piles, which were used to illustrate different behaviour of individual piles in the same group. Copyright © 2003 John Wiley & Sons, Ltd.