Development of the maximum acceleration estimate gadget for high density seismic measurement

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  • Toyooka Akihiro
    （公財）鉄道総合技術研究所 鉄道地震工学研究センター
  • Nunokawa Hirokazu
    （公財）鉄道総合技術研究所 鉄道地震工学研究センター

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Other Title
  • 高密度な被害把握のための最大加速度推定装置の開発
  • コウミツド ナ ヒガイ ハアク ノ タメ ノ サイダイ カソクド スイテイ ソウチ ノ カイハツ

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Abstract

<p>In order to carry out rapid reconnaissance of the structure after strong earthquake, quick investigation of the distribution of the earthquake intensity is indispensable. It could be realized by high density measurement system, however, only a few has been applied to the real structures in terms of long-term reliability, cost, and stable power supply. To this end, this paper proposed the simple and economical physical gadget to detect whether the induced acceleration exceeded predetermined level or not. A prototype of the device was manufactured and tested using a shaking table. It was confirmed that the device successfully worked if the subjected acceleration to the device exceeds the predetermined level estimated from the simple identification test.</p>

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