FIELD: construction, in particular, profile perforated beams designed for arrangement of concrete floors and bed. SUBSTANCE: the profile beam for concrete placement has two perforated side walls inclined to each other, with perforated beds outgoing from each of them, provided with adjusting screws and braced by transverse tension shackles, as well as a plastic insert installed in a groove formed in the upper zone of intersection of the walls. The transverse tension shackles are made at least with two holes located for passage of the adjusting screws of the beam beds through them. One of the lateral faces of the plastic insert has a plane vertical surface, and the other - a curvilinear one with two concave surfaces of similar dimensions positioned at equal distances from the horizontal axis of symmetry of the insert. EFFECT: enhanced reliability of the profile beam, reduced specific quantity of metal per structure and simplified mounting. 6 cl, 3 dwg
