FIELD: construction.
SUBSTANCE: invention relates to the field of construction, namely to perforated beams. The perforated beam includes an upper and lower chord made of cold-formed channels connected along the walls by paired bolted corners. Vertical rods, consisting of two wide channels, are bolted to the shelves of the paired corners. At the same time, all elements are made of cold-formed galvanized profiles.
EFFECT: reducing labor intensity, increasing bearing capacity and corrosion resistance.
2 cl, 2 dwg
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