既存鉄筋コンクリート造建物の鉄骨架構による耐震補強方法に関する実験的研究

概要

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This report discusses the seismic strengthening method of existing reinforced concrete structure with H-shaped steel elements . By mean of installed steel frame, larger window opening can be set up at the center of frame. Characteristics of the method are that steel frame adapted strong axis of H-shaped steel elements is installed in the R.C. frame, and braces are disposed at the corners of strengthened steel frame. Experimental results show that R.C. frames strengthened with H-shaped steel frame alone, produce satisfactory aseismic effect. In case of the one strengthened with corner braces in addition to H-shaped steel frame, there is the possibility of the local failure of steel frame. But another one, under some special conditions, preserves excellent yielding strength and ductility. Througth experimental and calculating works, it is verified that ultimate shear strength of seismic strengthened R.C. frame can be simply obtained by the conventional calculating method.
一般社団法人日本建築学会の論文
1992-03-20