RC骨組内の柱・梁接合部の入力せん断力と梁通し筋の付着に関する研究

概要

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Reinforced concrete cruciform beam-column subassemnblages have been used for the research of beam bar bond characteristics. However such a subframe cannot reflect the interaction of bond deterioration along beam bars within beam-column joints and beams. In another aspect, the beam flexural strength and the input joint shear can be enhanced by the axial force developed in beams within a bay of frames after beam cracking. Then R/C beam-column subassemblages with two joints were tested. Following results were obtained. (1) Joint shear, assuming that two beams adjacent to the joint were confined by columns, increased to 1.3 times that of cruciform specimens. (2) Beam bars could be anchored hi the compression zone of a beam hinge region. (3) Bond deterioration along beam reinforcement within a joint and a beam influenced each other. (4) Strain shift along bars in a beam contributed largely to beam yield deflection when the bond condition was severe within a beam.
一般社団法人日本建築学会の論文
1996-03-20