PC strand with 7 strands that are used in the areas such as bridge girder production, prefabricated construction elements, ground and mine anchorages, nuclear power stations, silo constructions, housing constructions are produced according to the ASTM, BS, EN and TSE standards.
Prestressing is to apply constant stress artificially to structural components before applying external loads. For the prestressing concrete wires and strands in various dimensions, types and resistances, which are produced exclusively, are used Prestressing concrete steel elements are produced by taking stress from high carbon special wire rods with vanadium alloys after a distinct load and a regular patenting treatment.
Designing of prestressed concrete structures
In prestressed concrete structures the prestressing applied initially is decreasing in time due to warping and creep of concrete and relaxation of prestressing steels. Therefore, the characteristics of the steel defined as steel relaxation under constant length or loss of stress is one of the important parameters taking into consideration in designing of prestressed concrete structures.
Advantages of the products with lower relaxation:
Measures for Storage
Some of the measures have to be taken during the use of prestressing concrete steel :