Analysis of prestressing strand

It refers to the so-called strand by a plurality of wires twisted together products, prestressed steel strand which is a type of prestressing steel wire strand is twisted into a circular cross section made of prestressed concrete structures, strand ground anchorage and other uses.
Prestressing strand rope is twisted by a 2,3,7 or 19 high-strength steel wires, and by stress relief treatment (stabilizing treatment) for prestressed concrete or similar purposes.
Can follow a number of strands of steel wire strand is divided into 2, 3 wire strand, wire strand 7 and 19 wire strand. A surface morphology can be divided into smooth strand, strand nicks, pull the strand die (compact), galvanized steel, epoxy coated steel wire and so on. It can also be classified according to diameter, or intensity level, or standards.
The main features of prestressing strand is a high strength and good relaxation properties, when compared with additional straight start. Common tensile strength rating of 1860 MPa, and the like as well as 1720,1770,1960,2000,2100 MPa strength level. This higher yield strength steel,
Mold pull strand are mainly used to enhance the project, but also for the class of nuclear power engineering. Galvanized steel tie rods commonly used in bridges, cable and in vitro prestressed works. Similar uses and epoxy painted galvanized steel strand prestressing strand.