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Response of piles and pile groups to travelling SH‐waves
Author(s) -
Mamoon S. M.,
Banerjee P. K.
Publication year - 1990
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290190410
Subject(s) - pile , salient , half space , compressibility , boundary element method , seismic wave , structural engineering , mathematical analysis , viscoelasticity , differential equation , geology , mathematics , finite element method , engineering , physics , mechanics , computer science , seismology , artificial intelligence , thermodynamics
Abstract The response of single piles and pile groups under vertically and obliquely incident seismic waves is obtained using the hybrid boundary element (BEM) formulation. The piles are represented by compressible beam‐column elements and the soil as a hysteretic viscoelastic half‐space. A recently developed Green function corresponding to the dynamic Mindlin problem is implemented in the numerical formulation. Exact analytical solutions for the differential equations for the piles under distributed harmonic excitations are used. Treating the half‐space as a three‐dimensional elastic continuum, the interaction problem is formulated by satisfying equilibrium and displacement compatibility along the pile‐soil interface. Solutions adopted for the seismic waves are obtained by direct integration of the differential equations in terms of amplitudes. Salient features of the seismic response are identified in several non‐dimensional plots. Results of the analyses compare favourably with the limited data available in the literature.