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ANALYSIS OF UNIAXIAL COMPRESSION FAILURE OF CONFINED CONCRETE BY THREE DIMENSIONAL RIGID BODY SPRING MODEL — Yoshihito Yamamoto (2010) | RDL Network
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ANALYSIS OF UNIAXIAL COMPRESSION FAILURE OF CONFINED CONCRETE BY THREE DIMENSIONAL RIGID BODY SPRING MODEL
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Hikaru Nakamura
Nagoya University
ANALYSIS OF UNIAXIAL COMPRESSION FAILURE OF CONFINED CONCRETE BY THREE DIMENSIONAL RIGID BODY SPRING MODEL
Article
2010
en
Authors
+1 more
YY
Yoshihito Yamamoto
Hikaru Nakamura
Nagoya University
IK
Ichiro Kuroda
Abstract
1 min read
本研究は,帯鉄筋により補強された横拘束コンクリートの内部抵抗機構を解明することを目的として,著者らが提案している,コンクリートの準微視的な力学挙動をモデル化した3次元RBSMの適用性を検証するとともに,供試体形状・寸法,帯鉄筋形状,帯鉄筋比および帯鉄筋間隔を変化させた横拘束コンクリートの1軸圧縮破壊解析を行ったものである.既往の実験結果および提案式との比較により,提案手法は,1軸圧縮下における横拘束コンクリートの耐力および軟化・局所化挙動に加え,応力分布性状や帯鉄筋の変形性状などの詳細な力学応答までを妥当な精度で再現できることが分かった.さらに,実験では観察が困難な内部の3次元的な損傷進展過程および応力分布性状を可視化することにより,横拘束コンクリートの内部抵抗・破壊機構を解析的に評価した.
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