Analysis of Damage to Buildings around Seismic Intensity Meter at Kawaguchi, Kawaguchi-machi in the 2004 Niigataken-Chuetsu Earthquake and Correspondence of Structural Damage to Strong Motion Records

Toshinori OTSUKI, Yuki SAKAI, Shinji KOSUGI
2007 Journal of Japan Association for Earthquake Engineering  
In the 2004 Niigataken-Chuetsu Earthquake which occurred on October 23, 2004, the seismic intensity scale 7 was recorded at Kawaguchi, Kawaguchi-machi for the first time since the introduction of seismic intensity meters in 1996. We investigated damage to buildings around the seismic intensity meter. We found many heavily damaged buildings, especially for old wooden houses. Heavily damage rate of the buildings was approximately 18%. We analyzed relationship between damage levels of buildings
more » ... structure types, usage of buildings, age of buildings, raised floors or not, tiled roofs or not and post-earthquake quick inspection, using the results of our investigation. Elastic response in the period range of 1-2 sec. which closely related to heavy building damage from the recorded strong ground motion was very large. Therefore, we confirmed correspondence of elastic response in the range of 1-2 sec. to the actual building damage.
doi:10.5610/jaee.7.3_40 fatcat:42f5csev4rgmbeedsrd5wmkqme