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AN INVESTIGATION ON SHEAR RESISTANT MECHANISM OF RC BEAM BASED ON BEAM ACTION AND ARCH ACTION — Takuya Iwamoto (2017) | RDL Network
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AN INVESTIGATION ON SHEAR RESISTANT MECHANISM OF RC BEAM BASED ON BEAM ACTION AND ARCH ACTION
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Hikaru Nakamura
Nagoya University
AN INVESTIGATION ON SHEAR RESISTANT MECHANISM OF RC BEAM BASED ON BEAM ACTION AND ARCH ACTION
Article
2017
ja
Authors
+2 more
TI
Takuya Iwamoto
Hikaru Nakamura
Nagoya University
LF
Li Fu
Abstract
1 min read
せん断破壊するRCはりの数値解析を行い,解析による詳細な応力分布に基づいたせん断抵抗メカニズムの評価を試みた.数値解析手法としては3次元剛体バネモデルを用い,まず,せん断破壊するRCはりを対象とした載荷実験と数値解析を行い,解析により可視化された局所的な応力分布の妥当性を確認した.次に,実験では測定できない応力分布を用いることで,せん断抵抗メカニズムであるビーム・アーチ機構の分離が可能であることを示した.対象とした諸元のRCはりでは,せん断耐力時のせん断抵抗メカニズムは,せん断補強筋比によらず,主にアーチ機構とトラス機構により構成されることが明らかになった.さらに,現在のせん断耐力算定式に対する考察を行い,せん断抵抗メカニズムに則したせん断耐力算定式を再構築する場合の方向性を示した.
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