耐震性新鋼材を主筋に用いたRC部材の曲げ破壊性状に関する解析的研究

概要

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The influence which a few coefficients determine a mechanical performance of main bars do to earthquake energy consumption in formation of the plastic hinge of RC members was considered. Parametric analysis was performed in order to analyze what value should just give as coefficient of steel bar in order to control plastic modification proper. Moreover, multiple regression analysis was also performed. Especially, the analysis result was arranged paying attention to bar arrangement and the axial load ratio. On the basis of the results obtained in this study, the following conclusions may be drawn. 1) In order to enlarge both the ultimate flexural strength and the plastic behavior of RC members, the larger value of alpha and beta is good. 2) In order to enlarge the amount of energy consumption, it is better that alpha is larger and beta is smaller. 3) If the axial load becomes large, the influence of change by the coefficient will almost be lost.