NEWS CENTER
LONGHENG YUYINGLI
26
2022
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05
Technical Requirements for Steel Strand Anchors Used in Bridges
Steel wire strands for bridges Anchors include highway bridges, railway bridges, urban intersections, urban light rail, high-rise buildings, hydropower dams, ports and wharves, rock slope protection anchors, ground improvement, tunnel mine top anchors, prestressed trusses, subways, large building halls, warehouses, tower buildings, heavy object reinforcement, and rock bolts.
Technical Requirements for Bridge Steel Wire Strand Anchors:
1. The bridge steel wire strand manufacturer states that the types, standards, and quality of prestressing tendons, rock bolts, clamps, and connectors should comply with the planning requirements and the rules of current national standards.
2. Prestressed tendons cannot be smoothly bent. The surface cannot have cracks, small thorns, mechanical damage, iron oxide, oil stains, etc.
3. The bridge steel wire strand manufacturer states that the anchor clamp shrinkage cannot be greater than 6mm, and the sum of the anchor friction and the speaker port friction loss cannot be greater than 6%.
4. Bridge steel wire strand anchors meet the requirements of grade tensile strength, supplementary tensile strength, and prestressed tendon relaxation. When used in post-tensioned structures, grouting holes or vent holes should be set on the anchor or attachment. The holes and diameters of the grouting holes should meet the grouting process requirements, and should have a structure that connects to the grouting pipe. When using a closed cover, a connecting structure is installed on the anchor or attachment.
5. Bridge steel wire strand anchors should have self-anchoring, loosening, and reusable functions. Clamps that need to be tapped to loosen must ensure operator safety without affecting the anchoring of the prestressed tendons.
6. The bridge steel wire strand manufacturer states that the material performance indicators of anchors, clamps, and connectors used are not lower than the requirements of No. 45 steel, meet the planning requirements, and have mechanical performance and chemical composition certificates and quality assurance certificates.
Various types of galvanized steel wire, unbonded steel wire, and support steel wire have different properties, quality, and prices. The required specifications of steel wire strands also vary greatly depending on the actual consumption category. Many companies with strand needs face a variety of options when purchasing.
This often causes confusion, and it is unclear how to choose. So what should be paid attention to when purchasing? First, when dealing with various manufacturers, it is necessary to compare their scale and purchasing power. Choosing a large manufacturer is undoubtedly more guaranteed. Because their raw materials are purchased from regular bridge steel wire strand anchor factories, and there is a quality guarantee.
Steel wire strands for bridges The factory also has specialized mechanical equipment and construction personnel. Choosing such a factory will at least prevent buying unusable substandard products.
specializing in the production of various specifications of prestressed concrete with steel strand, prestressed steel wire, unbonded prestressed steel strand and so on...
Tianjin Longheng Prestressed Steel Strand Co., Ltd.
After-sales hotline:022-68603799
Email: tjlhyyl@163.com
Headquarters address:North 301600 of Beihua Road, Jinghai Development Zone, Tianjin
Copyright©2023 Tianjin Longheng Prestressed Steel Strand Co., Ltd.