Seismic Performance of One-storey Thatched Roof Wooden Structure Against a Strong Earthquake Ground Motion

Abstract

In order to investigate the seismic behaviour of an old one-storey thatched roof wooden structure, 3-D non-linear collapsing process analysis of this wooden structure was conducted against a strong earthquake ground motion with the Japan Meteorological Agency seismic intensity of "6 upper" level. A non-linear behaviour of timber elements in the wooden structure during a strong earthquake ground motion can be simulated by this 3-D non-linear collapsing process analysis based on the Distinct Element Method. The effect of the post fixing condition under wooden structure floor on seismic response of this wooden structure was numerically investigated in this paper.