METHOD FOR MANUFACTURE OF REINFORCED CONCRETE CONTACT-LINE SUPPORTS Russian patent published in 1997 - IPC

FIELD: construction engineering. SUBSTANCE: method relates to production of reinforced concrete structures and particularly to production of reinforced concrete contact-line supports. Procedure begins with placement into seats of thrust units for rods of main longitudinal reinforcement rods, their preliminary tension to half of required pretension value, placement of additional longitudinal, erection and spiral reinforcement, final tensioning of main longitudinal reinforcement to required tension value, pouring concrete into forms, and removing forms. Final tensioning of main longitudinal reinforcement is effected together with additional reinforcement, and length of additional reinforcement rods exceeds length of main longitudinal reinforcement rods in release condition by value of 0.88-0.95 of their full elongation. EFFECT: high efficiency. 4 dwg