ANALYSIS OF COMPRESSION FAILURE OF CONCRETE BY THREE DIMENSIONAL RIGID BODY SPRING MODEL

Yoshihito Yamamoto; Hikaru Nakamura; Ichiro Kuroda; Nobuaki Furuya

doi:10.2208/jsceje.64.612

Abstract

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3次元剛体バネモデルによりコンクリートの圧縮破壊挙動を定量的に再現することを目的とし,同手法の構成モデルの検討と材料パラメータの同定を行った.その結果,垂直バネの引張側に引張軟化挙動を,圧縮側に逆S字形の非線形挙動を,せん断バネにモール・クーロン型の降伏基準と軟化をモデル化することにより,1軸圧縮下におけるコンクリートの軟化・局所化挙動および高拘束圧領域に至るまでの多軸効果による強度増加,体積変化挙動を妥当な精度で再現できることが分かった.

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ANALYSIS OF COMPRESSION FAILURE OF CONCRETE BY THREE DIMENSIONAL RIGID BODY SPRING MODEL

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