鋼構造の圧縮強度に関する実験的基礎研究

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This paper is concerned with the eccentric compression experiment on the carbon steel rectangular pipes with various h/c ratiosin short column range, supported with spherical seats. The equation for the buckling strength of short square steel pipe columns presented by the authors before was developed to more general cases, and the following empirical equation for calculating the breaking load "Pemax" in the eccentric compression of short square steel pipe columns and rectangular steel pipe columns with various cross-sectional dimensions was obtained from the experimental results. P_<emax>/P_<Gmax>=1/1+m・e/h where P_<emax> : compressive breaking load of the carbon steel rectangular pipes, applied at a point of eccentricity e. P_<Gmax> : compressive breaking load of the carbon steel rectangular pipes, applied at a point of principal axis intersection. e : eccentricity h, c : effective breadth. t_e, t_h : thickness. m : factor including h/c, e/h and t_h/t_e of carbon steel rectangular pipes. h/c=1.0,t_h/t_e=1.0 : m=2.0 h/c≒0.5∿ 0.6,t_h/t_e=1.0 : m=3.37・(e/h)^<0.432>
東海大学の論文