FIELD: construction.
SUBSTANCE: invention relates to construction and can be used as rod elements at development of bearing structures of buildings and structures of various purposes. In the particular case, these can be the rod elements of the chords of run-through and non-run-through coatings. In curved-closed profile with joint in the middle of one of faces, where each part of docked face has extension in form of an I-shaped rib, cross section of profile is given wedge shape with flat face edge and feather of two identical cylindrical faces joined together to form rib. In this case, each of arcs of cylindrical faces is quarter of circle radius of which is half the size of plane face and is equal to edge size.
EFFECT: technical result of proposed solution is the same stability (uniform stability) of curved-enclosed profiles from plane and in plane of structure, as well as increase in load capacity, decrease in construction height.
1 cl, 8 dwg
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