Anchorage, grip and coupler for prestressing tendons in railway construction
1 Scope
This standard specifies the terms and definitions, product codes and marks, technical requirements, test methods, inspection rules as well as marking, packaging, transportation and storage of the anchorage (low retraction anchorage), grip and coupler.
This standard is applicable to the anchorage, grip and coupler for steel strands with an anchoring diameter of 15.20mm used in prestressed concrete structures in railway construction.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 197-2003 General purpose metric screw threads - Tolerances (ISO 965-1: 1998, MOD)
GB/T 230.1 Metallic rockwell hardness test - Part 1: Test method (scales A, B, C, D, E, F, G, H, K, N and T) (ISO 6508-1:2005, MOD)
GB/T 231.1 Metallic materials - Brinell hardness test - Part 1: Test method (ISO 6506-1:2005, MOD)
GB/T 699 Quality carbon structure steels
GB 1499.1 Steel for the reinforcement of concrete - Part 1: Hot rolled plain bars
GB/T 1804-2000 General tolerances - Tolerances for linear and angular dimensions without individual tolerance indications
GB/T 9439 Grey iron castings (ISO 185:2005, MOD)
GB/T 10610 Geometrical product specifications (GPS) - Surface texture: Profile method - Rules and procedures for the assessment of surface texture (ISO 4288-1:1996, IDT)
GB/T 14370 Anchorage, grip and coupler for prestressing tendons
GB/T 16924 Quenching and tempering of steel parts
JB/T 3999 Carburizing or carbonitriding, post-quenching and tempering of steel part
JG/T 5011.8 Construction machinery and equipment - General specification for forgings
JG/T 5011.9 Construction machinery and equipment - General specification for heat treatment part
JG/T 5011.10 Construction machinery and equipment - General specification for cuttings
JG/T 5012 Construction machinery and equipment - General specification for product packages
JGJ 85-2010 Technical specification for application of anchorage, grip and coupler for prestressing tendons
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 14370 and the following apply.
3.1
low retraction anchorage
device composed of anchorages and anchor nuts, which adopts a secondary tensioning process and controls the retraction of prestressing tendons within 1.0mm
4 Product codes and marks
The codes and marks of common anchorage, grip and coupler shall comply with GB/T 14370.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Product codes and marks
5 Technical requirements
6 Inspection methods
7 Inspection rules
8 Marking, packaging, transportation and storage
