Steel Strand Manufacturers: What are the uses of steel strands?

Steel strands are widely used in many industries. Prestressed concrete steel strands entered practical application in the 1950s. However, the basic principle of prestressing is not only applicable to steel strands, but has been applied in many aspects in ancient times. The hoop is a good example. It applies a certain amount of pressure to loose wedge-shaped plates, forming a bucket that withstands sufficient lateral pressure. This is an early principle of prestressing, so steel strand manufacturers: What are the uses of steel strands?

Steel Strand Manufacturers: What are the uses of steel strands?

The overall structure of steel strand is twisted, and its raw material is steel wire. Of course, this material is an improved product according to different requirements. Usually, some common methods to improve steel strands are adding zinc coating, processing zinc-aluminum alloy cladding, spraying epoxy resin, etc. These methods can effectively improve the physical and chemical properties of steel strands and greatly expand the application range of steel strands. We can see that steel strands are often used as tension members, inclined cables, and reinforcing cores. When erecting power transmission lines, in the process of actually constructing interruption cables on both sides of the road, it is necessary to process the structural cables of the building structure, and the presence of steel strands can generally be seen. As far as we know, various fields such as bridge water conservancy, construction, and geotechnical engineering constantly require the presence of steel strands. Due to the wide range of applications of steel strands, the requirements for various characteristic strengths of steel strands in various fields are different. Therefore, in the normal development process of steel strands, various performance and characteristic steel strand products are gradually classified to meet the unique needs of different industries and fields. Currently, there are many prestressed steel strands and galvanized steel strands. The former has particularly prominent mechanical strength, and it is more flexible to increase or decrease the number of steel strands. The latter, due to its excellent coating, has excellent corrosion resistance and oxidation resistance.

Steel Strand Manufacturers: What are the advantages of prestressed steel strands?

1. The advantages of the prestressed concrete steel strand structure and the application of prestressing in concrete components mainly overcome the shortcomings of low tensile strength of concrete and make full use of high-strength steel. When the tensile stress of the reinforcing steel reaches 250 MPa and the crack width reaches 0.2-0.3 m, the durability of the component decreases, and it is not suitable for high-humidity and corrosive working environments. The role of prestressed steel strands is to produce prestress in the component before loading, thereby controlling the tensile stress level of the component, or even making the component in a compressive state. In order to avoid early cracking of reinforced concrete components, high-strength steel and high-strength concrete should be fully utilized to improve their performance and durability.

2. Due to the effective use of high-strength steel strands and accelerators, prestressed concrete steel strands can be made into slender load-bearing structures with larger spans and smaller self-weight than ordinary reinforced concrete;

3. Prestressed steel strands can improve the service performance of concrete structures, effectively prevent concrete cracking, or at least limit the crack width to a harmless level, and improve the durability of the structure;

4. Under the action of load, even if partial prestress is applied, the deformation of the structure can be controlled in a smaller state; 5. As long as the steel strain is less than 0.01%, the overload cracks can be closed again after unloading.