THE RELATIONSHIP BETWEEN CRACK WIDTH OF BLOCK WALL AND DEFORMATION OF BLOCK WALL INFILLED REINFORCED CONCRETE FRAME

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  • ブロック造壁を有する鉄筋コンクリート造架構におけるブロック造壁のひび割れ幅と変形の関係

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Abstract

In this study, concrete block walls infilled reinforced concrete frames for school buildings in Korea are tested under cyclic loadings, and a simplified model is proposed to investigate the relationship between residual crack width in concrete block wall and residual deformation. Although the measured crack width in concrete block wall is much smaller than the residual deformation, a simplified model proposed in this paper considering flexural and shear deformation distribution of columns can rationally reproduce the measured crack width. The relationship between crack width in concrete block wall and frame's residual deformation is further investigated and their ratio is found to lie approximately in the range of 0.2 to 0.3. This result implies that the residual deformation of frame can be estimated from crack width in concrete block wall.

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