FIELD: construction; reinforcing of reinforced concrete structures. SUBSTANCE: deformed bar has core and inclined ribs on its surface. Outer surface of core in normal section is formed by combination of even number of symmetrical curvatures made in form of shortened hypocycloid with even number of branches, and maximum distance of flow point of hypocycloid from rod outer surface equals 0.05-1.0 of spacing of inclined ribs and 0.03-0.3 of rod nominal diameter. EFFECT: higher efficiency. 2 dwg
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Authors
Dates
1994-06-30—Published
1991-06-11—Filed