Author(s)

M. Suarez & F.J. Sanchez-Sesma

Abstract

The indirect boundary element method (IBEM) is applied to compute the impedance functions and driving forces of arbitrarily shaped three-dimensional foundations embedded in a layered viscoelastic half-space. The method is tested against computed solutions for axisymmetric foundations on an elastic half-space. The effects of the irregularity of foundation are studied. Introduction The soil-structure interaction problem is particularly important for structures founded on soft soil layers because their flexibility affects the frequency and the amplitude of the peak response in comparison with that obtained considering the structure founded on rock. The torsion and rocking effects can be significant in structures with irregular foudation's shape. Many structures can not be well represente

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