This standard specifies the terms and definitions, specifications and markings, technical requirements, test methods, inspection rules, markings and product certificates for pre-tensioned prestressed concrete pipe piles, as well as packaging, transportation and storage. This standard applies to end plates for pre-tensioned prestressed concrete pipe piles. The end plates used for pre-tensioned prestressed centrifugal concrete special-shaped piles can be implemented as a reference.
GB/T 1804-2000 General tolerances Tolerances for linear and angular dimensions without individual tolerance indications
GB/T 20066 Steel and iron.Sampling and preparation of samples for the determination of chemical composition
GB/T 222 Permissible tolerances for chemical composition of steel products
GB/T 223.5 Steel and iron.Determination of acid-soluble silicon and total silicon content.Reduced molybdosilicate spectrophotometric method
GB/T 223.59 Iron,steel and alloy.Determination of phosphorus content.Bismuth phosphomolybdate blue spectrophotometic method and antimony phosphomolybdate blue spectruophotometric method
GB/T 223.64 Iron,steel and alloy.Determination of manganese content.Flame atomic absorption spectrometric method
GB/T 223.72 Iron,steel and alloy.Determination of sulfur content.Gravimetric method
GB/T 223.86 Steel and iron.Determination of total carbon content.Infrared absorption method after combustion in an induction furnace
GB/T 228.1 Metallic materials—Tensile testing—Part 1: Method of test at room temperature*, 2021-12-31 Update
GB/T 229 Metallic materials—Charpy pendulum impact test method*, 2020-09-29 Update
GB/T 2975 Steel and steel products.Location and preparation of samples and test pieces for mechanical testing*, 2018-05-14 Update
GB/T 4336 Determination of multi-element content in carbon steel and medium and low alloy steel Spark discharge atomic emission spectrometry (conventional method) Amendment No. 1