JOINT CONSTRUCTION METHOD BY SITE WELDING OF BEAM OF BOX SECTION AND JOINT STRUCTURE OF BEAM OF BOX SECTION

摘要

PROBLEM TO BE SOLVED: To provide a joint construction method executed for joint of beams of box section, and a joint construction manufactured by execution of the method. SOLUTION: In the connection parts of a joint member 2 and a beam member 3 opposite to each other, the lower flange 2a of the joint member 2 is projected, the upper flange 3c of the beam member 3 is projected, further, the web 2d on one side of the joint member 2 is projected, the web 3b on the opposite side of the beam member 3 is projected, and hence they are alternately arranged, and backing strips 4a, 5a, 4b, 5b are respectively provided on the inside along the flanges 2c, 3a and the webs 2b, 3d on the non-projecting side. The beam member 3 is hangingly put in between the joint members 2, 2 and confronted with each other, and both are integratedly joined together by full circumference welding.