INFLUENCE OF THE GROUND PROPERTY VARIATION TO THE MAXIMUM DISPLACEMENT RESPONSE OF JAPANESE WOODEN HOUSES

Abstract

The seismic breakdown probability of a building requires several parameters: the event probability of earthquakes, the variation of ground properties, and the seismic performance variation of a given building. In this paper, we discuss the influence of the ground property variation to the maximum displacement response of Japanese wooden houses. Monte Carlo simulation is employed to consider both the variation of ground properties and the seismic performance variation of a given building. As results, the variation coefficient of surface subsoil amplifying characteristic is 0.3 - 1.0 under 5.0Hz. The variation coefficient of surface layer has a large effect on the estimate values of maximum displacement responses by the result of Monte Carlo simulation.