鉄筋コンクリート柱の曲げ性状におよぼす主筋継手のすべりの影響に関する解析

抄録

The stress-strain relations of the steel bar with the mechanical splice have a shallow slope near the zero stress due to the slippage in the splice. This paper describes the investigations of the slippage in the mechanical splice by the tensile and compressive tests on the splice itself and analysis of the effects of this slippage on the bending behavior of reinforced concrete members with the mechanical splice. The conclusions of this paper are as follows : (1) The amount of the slippage in mechanical splice increases in proportion to the maximum plastic strain of the bar with the splice. (2) The total area of the hysteresis loops for the reinforced concrete member with the splice decreases in proportion as the slippage in the splice increases. (3) Under the high axial stress, the effect of the slippage in the splice on this decrease of the total area is not observed so remarkably.