? Strand damage identification and analysis of Hunan Newbridge steel prestressing strand has been widely used in bridges, buildings, water conservancy and hydropower, rock anchoring, special industrial and civil construction projects in the transportation, storage, application and service stage, strand may occur in various forms of damage (referring to quality strand of damage), severe cases can lead to material can not be used or structural failure. This paper analyzes the common causes of damage to provide basic investigation procedures and preventive recommendations. 1, prestressing strand damage classification (a) mechanical damage: refers to mechanical damage occurs when an external strand tension and shares of bonded labor. (B) corrosion damage: due to inadequate protection and environmental factors cause a variety of corrosion damage. (C) heat damage: fire, welding and other thermal factors strand damage. Press the damage phenomena can be classified as a fracture, corrosion, deformation, mechanical damage, etc. We believe that today's good reputation for quality and service, there will be broad breadth of future market returns in each business from the beginning to the end of the whole process , regardless of how much you need the goods, we will supply to every program to strict, honest, pragmatic, subtle, thoughtful service attitude to win long-term customers! The company is willing to more new and old customers to establish long-term friendly cooperative relations, welcome calls Chat! , Online customer service QQ: 923999890 QQ: 276508502 Company website: http: //www.xqgtw.com Company website: www.gjxmj.com