Dynamic Response Of Underground Structures In Soils With Variable Mechanical Properties
Author(s)
C.Z Karakostas
Abstract
Dynamic response of underground structures
in soils with variable mechanical properties
C.Z. Karakostas
Institute of Engineering Seismology & Earthquake Engineering (ITSAK),
Thessaloniki, Greece.
Abstract
In this work, we develop a formulation based on the Boundary Element Method
(BEM) for evaluating the dynamic response of underground structures excited by
seismically-induced, steady-state, horizontally polarized shear (SH) waves. The
surrounding geological medium is viewed as an elastic continuum exhibiting
large randomness in its mechanical properties. Suitable Green's functions are
proposed and subsequently used within the context the BEM formulation. More
specifically, the methodology developed herein employs a series expansion for
the proposed Green's functions, where the basis functions are orthogonal
polynomials of a random argument. These functions are incorporated in a BEM
formulation, which is then used for the solution of problems of engineering
interest. The p
Keywords
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