Abstract
The present paper examines the effect of floor stiffness on the earthquake response of Kiyomizu temple, a traditional Japanese wooden structure that was rebuilt in 1633. Although the floors of traditional wooden structures are generally not considered to be rigid, a large open stage attached to the main hall of Kiyomizu temple may function as a horizontal diaphragm similar to a semi-rigid floor. Therefore, nonlinear earthquake response analyses were conducted using a semi-rigid floor model and a non-rigid floor model in simulations of the Hanaore fault earthquake and the Tonankai earthquake. The results indicated that the non-rigid floor assumption tended to overestimate the response of the stage structure. Thus, the horizontal stiffness of the floor affected the estimation of the seismic performance of the main hall with the stage. In contrast, the horizontal stiffness of the roof was found to have little effect on the evaluation.
