High tensile prestressing steel strand for the prestressing of concrete

The studied steel strands for prestressed concrete (referred to as PC steel strands) are widely used in various fields such as highways, railways, bridges, overpasses, large-span buildings, high-rise buildings, nuclear power, energy, and geotechnical anchoring due to their high strength, low relaxation, and excellent performance. The main product standards include GB/T 5224, ASTM A416, BS 5896, JIS G 3536, EN 10138, etc. Meanwhile, prestressing technology also has a significant impact on building functionality, as it can reduce the thickness of concrete structures and control the height of high-rise buildings. Its service life depends on the service life of the prestressed concrete components.