GB/T 37439-2019
ActivePrecast post-tensioned prestressed concrete simply-supported beam of high-speed railway
高速铁路预制后张法预应力混凝土简支梁
Application Summary AI generated
This standard specifies the technical requirements, test methods, inspection rules, and marking for precast post-tensioned prestressed concrete simply-supported beams used in high-speed railway construction. It is applied in the manufacturing and quality control of bridge girders for high-speed rail lines, ensuring structural safety, durability, and performance under dynamic train loads. The standard is primarily used by railway engineering contractors, precast beam manufacturers, and inspection agencies in China.
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