REINFORCING ROD OF ALTERNATE SECTION Russian patent published in 2009 - IPC E04C5/03 

FIELD: building.

SUBSTANCE: reinforcing rod consists of at least three parts wherein cross section of rod is increased comparing to base cross section; also there are even transitions between parts with base and increased cross sections. Structure of metal of the rod corresponds to hot deformed condition on each part with increased cross section. Position on the core of each part with increased cross section corresponds to coordinates of stress zones of a building structure equipped with reinforcing rods. Parts with increased cross section are distributed along whole length of the rod; each part is characterised with coordinate of position, length and cross section altered according to acyclic law. Cross section of parts situated on ends of the rod is increased comparing to parts located between them. The technical object is achieved due to creation of characteristic zones of increased diametre on the rod; these zones are fixed in volume of a reinforced structure, where there are present local bends of generatrix of the reinforcing rod; i.e. the object of the invention is met with essential difference between base and locally changed section of the steel reinforcing rod.

EFFECT: structure of reinforcing rod facilitating fixed position of steel reinforcing rod in concrete even under condition of lost connection of rod with concrete along base lengthwise steel surface.

5 cl