Prestressing strand anchorage, grip and coupler for highway bridge
1 Scope
This standard specifies the classification, models, structural forms, specifications, technical requirements, test methods, inspection rules as well as marking, packaging, transportation and storage of prestressing strand anchorage, grip and coupler products for highway bridge.
This standard is applicable to strand anchorage, grip and coupler for post-stressed concrete structures and members of highway bridges, and it is not applicable to cables, stay cables and slings.
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 191 Packaging - Pictorial marking for handling of goods
GB/T 197 General purpose metric screw threads - Tolerances
GB/T 230.1 Metallic materials - Rockwell hardness test - Part 1: Test method (Scales A, B, C, D, E, F, G, H, K, N, T)
GB/T 231.1 Metallic materials - Brinell hardness test - Part 1: Test method
GB/T 700 Carbon structural steels
GB/T 1348 Spheroidal graphite iron castings
GB/T 1804 General tolerances - Tolerances for linear and angular dimensions without individual tolerance indications
GB/T 3274 Hot-rolled plates, sheets and strips of carbon structural steels and high strength low alloy structural steels
GB/T 5224 Steel strand for prestressed concrete
GB/T 9439 Grey iron castings
GB/T 9969 General principles for preparation of instructions for use of industrial products
GB/T 12361 General specification of steel die forgings
GB/T 15822.1 Non-destructive testing - Magnetic particle testing - Part 1: General principles
JB/T 3999 Carburizing or carbonitriding, post-quenching and tempering of steel part
JB/T 5944 Engineering machinery - General technical specifications for heat-treated work pieces
JB/T 5936 Engineering machinery - General technical specifications for mechanical processed parts
JB/T 5947 Engineering machinery - General technical specifications for packaging
JG 225 Corrugated metal ducts for prestressed concrete
JT/T 529 Plastic bellows for prestressed concrete bridge
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purpose of this document, the following terms and definitions apply.
3.1.1
anchorage
permanent anchorage device used to maintain the tensile force of the strand and transfer it to the post-stressed concrete structures or members, which may be classified into stressing anchorage and fixed anchorage
Foreword i
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Classification and models
5 Structural forms and specifications
6 Technical requirements
7 Test methods
8 Inspection rules
9 Marking, packaging, transportation and storage
Annex A (Informative) Structural forms and specifications of anchorage
Annex B (Informative) Structural forms and specifications of coupler
Annex C (Normative) Load transfer test
