繰返し荷重を受けるK型筋違付架構の実験

概要

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An experimetal study was conducted on the hysteretic behavior of a K-type braced frame. Five specimens were subjected to repeated horizontal load. The specimen was made of steel plates by welding and each member had a rectangular cross section. The experimental results provided following conclusions. 1) Braces in K-type braced frame rarely experience elongations, and braces do not function well as the tension member. 2) The hystretic proeprty of the system much depends on the elastic-plastic behavior of the beam. The development of plastic deformation of the beam causes the severe deterioration of hysteresis loops. 3) If the brace is rather stubby, for example λ≃30, large plastic deformation of the beam may be caused by the repeated loading. Conversely, if the brace is rather slender, for example λ≃80, the deterioration of hysteresis loops is little. 4) The system should be designed not to increase the plastic deformation of the beam under alternately repeated loading of constant displacement amplitude.
社団法人日本建築学会の論文
1983-04-30