INFLUENCE OF BOUNDARY CONDITION OF SOIL AND ANALYTICAL METHOD ON SEISMIC BEHAVIOR OF STRUCTURES CONSIDERING NONLINEAR SOIL-STRUCTURE INTERACTION

Abstract

In this study, the response of an actual 5-story SRC building, a RC building, and a highway supporting beam were analyzed, and it is examined the effects of analytical methods, boundary conditions, and the area of analysis domain on the results of responses analysis considering soil-structure interaction. All analytical results of the SRC building, which showed little nonlinearity and small soil-structure interaction effect, were in good agreements with observed ones. As for the responses of RC building and bridge supporting beam, the effects of analytical methods and boundary conditions become more evident. Energy transmitting boundary in frequency domain analysis and newly implemented PML in time domain analysis showed excellent results with small area of analysis. The nonlinearity in structures and in soil affects required analysis area for accurate analysis.