Abstract
The Response of wooden houses during earthquakes is strongly affected by characteristics of ground surface amplification and incident ground motion. Seismic design method and seismic retrofit design method of wooden houses based on "Response and Limit Strength Calculation (RLSC)" is developed considering in the excellent deformability of traditional construction system. From the importance of evaluating rational ground surface amplification Gs in RLSC, we constructed the database of Gs using the public database of surface strata presenting from "Central Disaster Management Council" of Cabinet Office, Government of Japan. Some remarks are pointed out with utilizing this database, and investigated wooden houses reponse using two types of Gs specified in the notification.