K型筋違付架構の弾塑性挙動に関する実験的研究

Abstract

An experimental study is made on the elastic-plastic behavior of K-type braced frame. Fivespecimens which are made of steel plates by welding, are subjected to alternately repeated horizontalload. The hysteretic behavior of a K-type braced frame is much dependent on the elastic-plasticbehavior of the beam. If the brace is stubby, large restoring force is obtained, however the beamis seriously damaged plastically, and the hysteresis loop deterirates significantly. If a slender braceis adopted, a little plastification of the beam yields stable hysteresis loop, although the obtained re-storing force is not large.