抄録
For the steel structures, semi-rigid connections which permit deformation have studied by many researchers. This is expected that seismic energy is absorbed by the earlier yield of angle members and possibility that seismic response of steel frame are reduced. However many reports are only presented concerned with member test and plane frame analysis so far and these semi-rigid connections are not apply actual design yet. This paper presents allowable stress design method corresponding angle plate and bolt yield earlier than beam.