HAT SHAPED BEAM HAVING STIRRUP

摘要

An assembling type hat-shaped beam of the present invention comprises: a web member which is formed by molding and bending a steel plate to has an upturned U-shape and includes two side wall parts placed apart from each other, an upper plate connecting upper ends of the two side wall parts, and a coupling unit horizontally protruding from each lower end of the two side wall parts; a lower plate coupled to the lower side of the web member to close the open lower surface of the web member; and a reinforcing plate installed and coupled in a negative moment generating section on the upper part of the web member. The assembling type hat-shaped beam can be advantageous to a long span and have an excellent effect of reducing floor height by having improved bending performance despite a small height of a cross-section because of the excellent bending strength of a cross-section; can be easily applied to an external edge beam of a building because the torsional rigidity of the cross-section is large by having a closed cross-section; reduce the self-weight of the beam and improve attaching performance to concrete by having an opening and a stirrup in the web member; and also reduce the amount of steel and omit an additional work of reinforcing negative moment in a construction site by efficiently forming a cross-section by coupling a reinforcing plate only in an area in which the negative moment is applied.