抄録
Experiments of protable frame with H-sectional beam under horizontal loading were performed to observe the restoring force characteristics of the beam especially in the plastic range. Generally deformability of beams is limitted by lateral or local buckling. Tested beams have small width-to-thickness ratio for both flange and web. Collapse mode of them was characterized by the lateral buckling. Specimens are nearly of full-size and are provided with practical conditions such as intermediate sub-beams and floor bracings. Experimental results were compared with analytical ones proposed in this paper. The method of analysis makes allowance for strain-hardening of material and Post-buckling equilibrium of the beam. Analytical predictions agree fairly well with experimental results in regard to maximum strength and deformability.
