Ground Response in Alluvial Basins Due to Seismic Disturbances.
Rept. for 26 Mar 81-30 Apr 82,
COLUMBIA UNIV NEW YORK
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This summarizes the first years accomplishments under Contract F19628-81-K-0012. Our scientific accomplishments include systematically studying four finite element basin models for SH waves and two more complex basin models for elastic waves and modifying the two-dimensional finite element computer code for SH waves and elastic waves. The non-reflecting boundaries have been introduced in finite element modeling. The method of Effective Excitation, the relative coordinates of the nodal points, and a restart back-up capability have been introduced into the computer codes. Author