抄録
This paper describes the exprimental results and the discussion about a brittle fracture in beam-to-column welded joints concerning following parameters ; disposal of end-tab, a mode of fillet weld at backing strip and stress ratio of beam flange and column flange T-type full scale specimens are used in tension and bending test in regard to those parameters. The results are shown as follows ; 1. Brittle fracture did not occure starting from tip of notch between end-tab and beam flange in any specimen. 2. In case of having continuous fillet weld at backing strip, brittle fracture did not occure at beam flange, but in some specimen brittle fracture occured at column flange starting from an intersection of fillet weld metal and column base metal. By making use of results obtaind in this experiment, we can say that there is nothing against in leaving end-tab as it is and that it is best to avoid fillet weld at backing strip.
