WELDING BEAM FOR BUILDING STRUCTURE

摘要

PURPOSE: A welding beam for a building structure is provided to improve weldability, reduce the used amount of steel plate material comprising a web, and prevent a partial buckling by a shear force by welding two embossed steel plates side by side in the form of facing each other when comprising the web. CONSTITUTION: A welded beam(10) for a building structure comprises a web and an embossing(40). A web is welded between upper and lower flanges(20), and consists of a left web(30) and a right web(30`). An embossing is formed in intervals of a vertical direction, which is an upper and lower flange direction, in the center part of each web and forms a space part in the interval by being protruded to the outer direction and formed to face each other.