Abstract
This paper examined the effect of aging on the deterioration of structural members and joints on the earthquake response of a traditional Japanese wooden temple, Kiyomizu, in Kyoto. First, the effect of deterioration at the beam-column joints was studied. Push-over analysis and nonlinear earthquake response analysis showed that deterioration of the beam-column joints decreased the bearing load capacity, especially in the E-W direction, and increased the response displacement of the temple. Next, the effect of deterioration due to age of the structural member was studied. The structural members of Kiyomizu temple are made of 350-year old zelkova wood, the Young's modulus of which decreases continuously once it is used as a structural member. Static and dynamic analyses showed that the deterioration of Young's modulus decreased the bearing load capacity and increased the displacement response of the temple. However, the risk of total collapse is considered to be low if the deterioration ratio of the modulus is linear.
