付着・定着・継手(3)／数値解析／軽量コンクリート

[V-628] Researsh into Experiment and 3D FEM Analysis of Damaged RC Beam

〇Makiko Nagamatsu^1,2, Takahiro Kaibe², Saki Tyuman², Kenji Okamoto³, Ken Tsuruta³, Aoi Koga⁴, Kenji Sasaki⁴, Hiroshi Matsuda⁴ (1.Penta Ocean Construction, 2.Former Nagasaki University, 3.Materasu Oume Industry, 4.Nagasaki University)

Keywords:3D FEM analysis, RC beam, Damage, PIC board, Polymer Impregnated Concrete (PIC), Bendinf and shear test

Concrete is an essential material in construction works, however, the durability is always decreases. So, maintenance of RC structures is important. The target is cracks due to damage to the anchorage of the reinforcing bar. In this study, we focused on the PIC board, and reinforced the RC beam whose anchorage is damaged, and clarified the effect of shear reinforcement by experiments and analysis. In the experiment, it was shown that the proof stress decreased due to the damage of the anchorage part and the PIC board recovered the proof stress. The test specimens were analyzed using a model created using 3D CAD, and the analysis results agreed with the experimental values, indicating the validity.