Abstract
An experiment was carried out to investigate the elastic-plastic behavior of a pinned-end axially compressed member which was laterally supported at midspan by an elastic spring (Figs. 1(a), 1(b) and Table 1). The following conclusions are obtained by the considerations on the basis of the experimental results, confirming the ones in the previous paper (part 1) to be true. For a member with the eccentricity of load e=i/20+2L/500, 1. The compressive force P of a member is able to attain to Jezek's strength P_cr in the region of the bracing stiffness ratio k>1.0. 2. The valure of the bracing force F_cr corresponding to Jezek's strength P_cr does not exceed 2% of P_cr in the region of k>2.0. 3. The maximum valure of the bracing force F_max corresponding to the maximum compressive force P_max tends to converge the valure of 2% of P_max in the region of k≧3.0. For a member with e=0. 4. The strength of a member does not rather attain to the buckling load of a centrally loaded bar, even if the bracing stiffness ratio k is in the region of k>1.0. 5. The valure of the bracing force F corresponding to the compressive force P is less than 1% of P in the region of any magnitude of P.
