等分布鉛直荷重を受ける大スパン合成梁を有する鉄骨骨組の水平加力実験

概要

論文の詳細を見る
The structural behaviors of the long-spanned composite beams in steel frames are investigated. Three of 1/ 3-scale models of one-story and long-spanned steel frames with/without reinforced concrete slab were tested under lateral cyclic loading, while the composite beams were subjected to larger uniformly distributed vertical loads, up to 2.5 times the design loads. There was no significant influence of the vertical loads on the structural behavior of long-spanned structures. Such structures could not reach the failure mechanism even at a story drift angle of 1/50. The yield hinge theory for estimating the elasto-plastic behavior of the long-spanned composite beams, prior to the failure mechanism, underestimated the flexural stiffness in a positive region. This implies that the positive moment distribution must be taken into account for the total stiffness of the composite beams.
社団法人日本建築学会の論文
1997-03-30