@article{oai:nagoya.repo.nii.ac.jp:00018801, author = {上田, 尚史 and PHAMAVANH, Kongkeo and 佐野, 理紗 and 中村, 光 and 国枝, 稔 and UEDA, Naoshi and SANO, Risa and NAKAMURA, Hikaru and KUNIEDA, Minoru}, issue = {1}, journal = {土木学会論文集E2(材料・コンクリート構造)}, month = {Jan}, note = {本研究では,RC部材の非線形有限要素解析における損傷評価手法の確立を目的として,コンクリートの圧縮破壊が支配的となるせん断圧縮破壊するRC部材の破壊基準としてのひずみ評価指標を検討した.面的なひずみ性状を計測可能なアクリル格子法を用い,損傷領域と損傷度を実験的に評価するとともに,3次元非線形有限要素解析による損傷評価を行った.その結果,平均化ひずみを用いることで要素寸法によらないひずみ分布性状が得られることを示し,ひずみによる損傷領域評価と破壊基準を提案した.また,提案手法を曲げ破壊するRC部材に適用し,その妥当性と適用性を示した.さらに,不静定構造物を対象とした検討の結果,構造全体の耐荷力以前における部材の破壊を評価でき,単一部材のみならず構造物中の部材の損傷評価に対する適用性を示した., In this study, damaged areas of RC beams failed in shear compression were experimentally evaluated by means of acrylic lattice method which can measure planar strain distribution. Three-dimensional nonlinear finite element analysis was also conducted in order to verify the damage evaluation method and failure criteria of RC members failed in shear compression. As the result, damage region were evaluated by the averaged strain without mesh dependency and failure criterion for shear compression failure was proposed. It was confirmed that the proposed method was also applicable to RC beams, which has various dimension and specification, failed in both shear and flexural by the analyses. Moreover, it was shown that the proposed criterion was useful to evaluate the damage of a member in statically indeterminate structures.}, pages = {1--18}, title = {ひずみ評価指標によるせん断圧縮破壊するRC部材の損傷領域と破壊基準の検討}, volume = {70}, year = {2014} }