GB/T 31314-2014
ActiveMulti wires of large diameter strand with high-strength and low-relaxation strand for prestressing
多丝大直径高强度低松驰预应力钢绞线
Application Summary AI generated
This standard specifies the technical requirements, test methods, inspection rules, and packaging for multi-wire, large-diameter, high-strength, low-relaxation steel strands used in prestressed concrete structures. It is applied in the manufacturing and quality control of steel strands for large-scale civil engineering projects such as bridges, high-rise buildings, and heavy-load industrial facilities where high tensile strength and minimal relaxation under sustained stress are critical. The standard ensures consistent performance in post-tensioning and pre-tensioning systems, particularly for long-span or high-stress applications.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.