An Improved Finite Beam Element Method for Calculating Lateral Displacements of Piles Subjected to Inclined and Eccentric Loads

Abstract:

This study presents an improved finite beam element method developed to calculate lateral displacement of pile subjected to eccentric and inclined loads. The relationships between the moment and shear to the lateral displacements of pile are derived from the mechanical deferential equation of the pile by taking into account the P-Δ effect of the pile due to geometric nonlinearity, and the stiffness of the pile element discretized into the finite beam elements is obtained, followed by solving, lateral displacement of pile is deduced by the improved finite beam element equations. By comparing to results of a model test on piles under eccentric and inclined loads, it is shown that the improved finite beam element method accurately predicts the pile’s lateral displacements.

• Periodical: Advanced Materials Research (Volumes 255-260)
• Pages: 1934-1938
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.255-260.1934
• Online since: May 2011
• Authors: Ming Hui Yang, Bi Feng Ou, Shang Wu Lu
• Keywords: Beam Element Method, Eccentric-Loaded, Inclined Load, Model Test, Pile, P-Δ Effect

References

[1] Hsiung, Y., and Chen, Y: Simplified method for analyzing laterally loaded single piles in clays., ASCE, Journal of Geotechnical and Geoenvironmental Engineering, (1997) 123 (11), 1018-29.

DOI: 10.1061/(asce)1090-0241(1997)123:11(1018)

[2] Xu, K.J., Poulos, H.G: General elastic analysis of piles and pile groups. International Journal for Numerical and Analytical Methods in Geomechanics, (2000) 24, 1109-1138.

DOI: 10.1002/1096-9853(20001225)24:15<1109::aid-nag72>3.0.co;2-n

[3] Briaud J L.: Simple approach for lateral loads on piles. J. Geotech. Geoenviro. Eng., (1997)123(10),958-964

DOI: 10.1061/(asce)1090-0241(1997)123:10(958)

[4] Guo, W.D.: Nonlinear response of laterally loaded piles and pile groups. International Journal for Numerical and Analytical Methods in Geomechanics, (2009) 33(7), 879-914.

DOI: 10.1002/nag.746

[5] Karthigeyan, S., Ramakrishna, V.V.G.S.T., Rajagopal, K.: Influence of vertical load on the lateral response of piles in sand. Computers and Geotechnics, (2006) 33 :121-131

DOI: 10.1016/j.compgeo.2005.12.002

[6] Meyerhof, G.G., and Yalcin, A.S: Bearing capacity of flexible batter piles under eccentric and inclined loads in layered soil., Canadian Geotechnical Journal, (1994) 31 (4), 583-590.

DOI: 10.1139/t94-068

[7] Sastry, V.V.R.N., and Meyerhof, G.G: Behavior of flexible piles in layered sands under eccentric and inclined loads. Canadian Geotechnical Journal, (1994) 31 (4), 513-520.

DOI: 10.1139/t94-060

[8] Sastry, V.V.R.N., and Meyerhof, G.G: Behavior of flexible piles in layered clays under eccentric and inclined loads. Canadian Geotechnical Journal, (1995) 33 (3), 387-396.

DOI: 10.1139/t95-043