2012 Volume 77 Issue 671 Pages 217-225
In this study, we refer to earthquake related damages of Japanese traditional wooden pagoda. According to records, few pagodas have been completely destroyed by earthquakes, but often pagoda's eaves are damaged by earthquakes. We performed the eave-beat tests and free vibration tests with a 1/10 model of a three-story pagoda by changing the weight of the model.We obtained the following results from these tests.
•By an increase in amplitude of high degree mode, the vibration of eaves is activated.
•If the shoe supporting the roof system jumps up from the column, the shock of the shoe hitting the parts below induces the excitation of the vibration of eaves.
•The size of the pagoda effects the characteristics of earthquake-damage of these eaves.
