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Seismic analysis of laterally loaded pile under influence of vertical loading using finite element method

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Title Seismic analysis of laterally loaded pile under influence of vertical loading using finite element method
 
Creator CHATTERJEE, K
CHOUDHURY, D
POULOS, HG
 
Subject SINGLE PILES
PSEUDOSTATIC APPROACH
LIQUEFYING SOIL
LAYERED SOIL
DEFORMATION
SETTLEMENT
Finite element method
Maximum horizontal acceleration
Pseudo-static
Pile
Earthquake motions
Ground response analysis
Liquefaction
 
Description An efficient analytical approach using the finite element (FE) method, is proposed to calculate the bending moment and deflection response of a single pile under the combined influence of lateral and axial compressive loading during an earthquake, in both saturated and dry homogenous soil, and in a typical layered soil. Applying a pseudo-static method, seismic loads are calculated using the maximum horizontal acceleration (MHA) obtained from a seismic ground response analysis and a lateral load coefficient (a) for both liquefying and non-liquefying soils. It is observed that for a pile having I/d ratio 40 and embedded in dry dense sand, the normalized moment and displacement increase when the input motion becomes more severe, as expected. Further increasing of a from 0.1 to 0.3 leads to increase in the normalized moment and displacement from 0.033 to 0.042, and 0:009 to 0.035, respectively. The validity of the proposed FE based solution for estimating seismic response of pile is also assessed through dynamic centrifuge test results. (C) 2015 Elsevier Ltd. All rights reserved.
 
Publisher ELSEVIER SCI LTD
 
Date 2016-01-14T13:27:13Z
2016-01-14T13:27:13Z
2015
 
Type Article
 
Identifier COMPUTERS AND GEOTECHNICS, 67,172-186
0266-352X
1873-7633
http://dx.doi.org/10.1016/j.compgeo.2015.03.004
http://dspace.library.iitb.ac.in/jspui/handle/100/17613
 
Language en