Abstract
The present paper is on the local failure of tubular column to H-beam connections stiffened with ring stiffeners. On the basis of the test results reported in the preceeding paper (Ref. 1) which described a number of simplified model tests of the connections, the empirical formulae predicting the local strength of connections are derived by the dimensional analysis and the regression analysis. The empirical formulae obtained here are as follows : For the maximum load, [numerical formula]…(4) For the yield load, P_<cy>=0.65P_<cmax> The relationships between the value calculated from Eq. (4) and the test results are shown in Fig. 3. The limitations for using these formulae are D/tp=18〜54, h_s/R=0.14〜0.42, t_s/t_p=0.75〜2.25 and B_f/D=0.35〜0.63, and where the material properties of the ring stiffener and beam flanges are nearly equal to those of the tubular columns. In the practical connections, P=M_b/H_b shall be used.
