Estimation of Historical Earthquake Intensities through Test on Scaled Wooden House Model

摘要

Shake table tests on two 1:4 scaled models of an ancient Korean commoners' house made of fresh pine lumber were performed. Typical earthquake time histories recroded on soil and rock sites were used for the input motion. Natural frequency and a damping ratio of the house were identified. The PGA at collapse of the house at soil site was 0.25g, whereas the peak ground acceleration (PGA) at severe damage of the house at rock site was 0.5g. The intensity of major historical earthquake records related with house collapses was quantitatively estimated to be MM VIII.