鋼桁-RC橋脚剛結部の拘束効果と材料劣化の三次元解析

3-dimensional Analysis for Confinement Effect and Material Deterioration of Hybrid Rigid
Connection between Steel Girders and Reinforced Concrete Pier

内海 和仁 (Kazuhito UCHIUMI)

3-dimensional numerical simulations are carried out for material deterioration of the hybrid rigid connection between steel girders and reinforced concrete pier. The constitutive relation for concrete is taken account of the void damage theory, and the confinement effect of steel cover plate on concrete rigid connection is included. As a result, the deteriorated process and concentrated portion of rigid connection are made clear, and the confinement effect by steel cover plate is quantitatively estimated.

鋼桁と鉄筋コンクリート橋脚から成る合成構造剛結部の 材料劣化とコンクリート材料の鋼板による拘束効果 についての三次元数値シミュレーションを実施した. ボイド損傷理論を考慮したコンクリートに対する構成則が新たに 考慮されている. その結果,剛結部の損傷過程および損傷集中部位を明かにし, さらに鋼板によるコンクリートの拘束効果を定量的に評価した.



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