Author(s)

D. Pel & A.S. Papageorgiou

Abstract

Study of the response of cylindrical alluvial valleys of arbitrary cross-section to obliquely incident seismic waves using the discrete wavenumber boundary element method D. Pel, A.S. Papageorgiou Department of Civil and Environmental Engineering, Rensselaer Polytechnic Institute, ABSTRACT The Discrete Wavenumber Boundary Element Method is extended so that it can be used for the analysis of the response of cylindrical alluvial valleys of arbitrary cross-section to obliquely incident elastic waves (i.e. waves which are incident with arbitrary angles with respect to the vertical and horizontal axes of the valley). Preliminary results reveal the existence of strong coupling between P/SV and SH modes. Many important response features appear to be sensitive to the polarization of the particle motion of the incident wave. INTRODUCTION Sedimentary deposits may significantly amplify earthquake ground motions with potentially grave consequences. The dest

Keywords