STEEL FRAME COMPLEX BEAM HAVING ASYMMETRIC CROSS SECTION

摘要

PURPOSE: A steel frame complex beam having an asymmetric cross section is provided to achieve the complex beam capable of supporting the load of construction by itself by adopting an upper flange narrower than a lower flange in width. CONSTITUTION: The complex beam made by composing a steel frame and concrete consists of a steel frame(4) having an I-shaped asymmetric cross section that a width of the upper flange is narrower than that of the lower flange; a plurality of parallel primary cores(8) arranged in the longitudinal direction of the steel frame; a stirrup(7) surrounding the primary cores; and a precast concrete(6) formed over the lower flange of the steel beam and the both sides of a web.