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
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概要
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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 and 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.
- 一般社団法人 日本地震工学会の論文
一般社団法人 日本地震工学会 | 論文
- Scope of this issue
- Study on the Priority of Measuring against Scenario Earthquakes Based on Seismic Risk Estimation
- Investigation on Actual Disaster Responses in Local Governments in terms of Information Sharing
- Empirical Correction of Ground Motion Prediction Equations of Response Spectra at Rock Sites for Near-Field Earthquakes Considering Amplification Effect within Deep Subsurface Structure
- A Study for Estimating Suspension Time of Railway Lines Due to Earthquake