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        <datestamp>2025-06-23T05:39:18Z</datestamp>
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          <dc:title xml:lang="ja">フレーム架台振動低減装置の性能確認実験</dc:title>
          <dc:title xml:lang="en">Performance Verification Test of Seismic Isolation Device Installed under Steel Frame</dc:title>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="ja">防災科学技術研究所</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja-Kana">ボウサイカガクギジュツケンキュウショ</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="en">National Research Institute for Earth Science and Disaster Resilience</jpcoar:creatorName>
            <jpcoar:familyName xml:lang="ja">防災科学技術研究所</jpcoar:familyName>
            <jpcoar:familyName xml:lang="ja-Kana">ボウサイカガクギジュツケンキュウショ</jpcoar:familyName>
            <jpcoar:familyName xml:lang="en">National Research Institute for Earth Science and Disaster Resilience</jpcoar:familyName>
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          <datacite:description xml:lang="ja" descriptionType="Abstract">防災科研では、国のイノベーションミッションを背景に「地震フリー空間」を実現するため、高機能な振動低減装置の開発を進めています。本実験研究では、令和元年度（2018）の試験体（E201803）を基に、従来は1脚の構造で実施していた振動低減装置を4脚に拡張し、より実際の使用状況に近づけました。また、支持荷重は10トンに増加しました。フレーム架台（4m×2m）には、流体浮揚式の水平振動低減装置を4台設置しています。これまで使用していた差動流体は取り扱いが簡単な「空気」でしたが、今後の大容量化に備え「水」を比較しました。その結果、振動低減性能には大きな違いはなく、関連研究と同等の良好な結果が得られました。違いとしては、「水」の方が滑走面から離れにくいというユニークな結果が得られました。この実験で得られた計測データや画像は公開されています。</datacite:description>
          <datacite:description xml:lang="en" descriptionType="Abstract">In response to the national innovation mission, NIED is exploring the development of high-performance seismic isolation devices to realize "earthquake-free spaces." In this experimental study, the prototype developed in the 2018 project (E201803) was expanded from a single-legged vibration reduction device to a four-legged configuration, bringing it closer to real-world usage scenarios. The support load was also increased to 10 tons. The frame stand (4m × 2m) is equipped with four fluid-levitation horizontal vibration reduction devices. Previously, differential fluids were limited to easily manageable "air," but for future large-capacity applications, "water" was also compared. The results showed that there was no significant difference in vibration reduction performance, yielding good results comparable to related studies. A unique finding was that "water" made it more difficult to separate from the sliding surface, which differentiates it from air. The measurement data and images obtained from this experiment are available.</datacite:description>
          <datacite:description xml:lang="ja" descriptionType="Other">データ取得：2019年</datacite:description>
          <datacite:description xml:lang="en" descriptionType="Other">Data acquisition period : 2019</datacite:description>
          <datacite:description xml:lang="ja" descriptionType="Other">お問い合わせ：asebi@bosai.go.jp</datacite:description>
          <datacite:description xml:lang="en" descriptionType="Other">inquiry： asebi@bosai.go.jp</datacite:description>
          <dc:publisher xml:lang="ja">防災科学技術研究所</dc:publisher>
          <dc:publisher xml:lang="en">National Research Institute for Earth Science and Disaster Resilience</dc:publisher>
          <datacite:date dateType="Issued">2021</datacite:date>
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          <jpcoar:identifier identifierType="DOI">10.17598/NIED.0020-E201902</jpcoar:identifier>
          <jpcoar:identifier identifierType="URI">https://nied-repo.bosai.go.jp/records/7227</jpcoar:identifier>
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