Increase in concrete adhesion using ropes
Increase in concrete adhesion, provided by the periodic profile, will increase the pitch. Due to this, metal consumption will decrease, by reducing the pig stresses, physical and mechanical properties will increase, as well as the energy consumption of electricity during the whip. The increased contact surface between the wires, despite the increase in the pitch of the switch, ensures the structural integrity of the rope and the redistribution of the tension between the wires. In addition, due to the smaller inclination of the external wires to the longitudinal axis of the rope, their loading is provided at the earlier stage of stretching of the central wire, which will additionally increase the strength and relaxation resistance of the rope. In addition, an increase in the pitch of a switch means to save electricity in the production process, proportional to the increase in the step, as well as additional saving of metal by reducing the length of the external wires. Thus, the proposed rope design potentially reduces the cost of its manufacture, while at least preserving the necessary adhesion to concrete and mechanical characteristics.
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The manufacture of a rope of the developed structure can be provided in two fundamentally different ways: a rop of wires from wires with a one -sided periodic profile or the formation of a periodic profile on the surface of the rope after or directly in the process.
However, the manufacture of a reinforcing rope with a periodic profile of the outer surface by switch from wires with a one-sided periodic profile is irrationally both from the point of view of the physical and mechanical properties of the rope and due to the economic efficiency of production. Thus, a more promising way is the formation of a periodic profile on the surface of the rope after or during a switch. The formation of a periodic profile can be carried out by a number of methods associated with plastic compression of the rope.
