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2026

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Key Points of the Standard | Summary of Key Contents of the General Code for Steel Structures GB 55006-2021


The General Code for Steel Structures (GB 55006-2021) is a fundamental mandatory national standard in China’s steel structure engineering field. It was jointly issued by the Ministry of Housing and Urban–Rural Development and the State Administration for Market Regulation and has been officially implemented since January 1, 2022.

The General Code for Steel Structures (GB 55006-2021) is a fundamental mandatory national standard in China’s steel structure engineering field. It was jointly issued by the Ministry of Housing and Urban–Rural Development and the State Administration for Market Regulation and has been officially implemented since January 1, 2022.

This standard sets forth mandatory requirements covering the entire lifecycle of steel structure projects, from materials and design to construction, inspection, and maintenance, and establishes uniform minimum standards for the safety and reliability of such structures. The key points are summarized as follows:

1. Minimum material performance requirements: The mandatory performance criteria for commonly used steel materials and connection components in steel structures have been clearly defined, ensuring the quality of foundational construction materials and preventing the use of non‑conforming products.

2. Design Safety Mandates: Mandatory requirements have been established for key performance indicators of steel structures, including load-bearing capacity, stability, and seismic resistance, thereby laying a solid foundation for structural safety.

3. Key Control Points for Construction and Acceptance: It stipulates mandatory provisions for the steel structure construction process and acceptance procedures, and specifies quality control standards for critical processes, thereby ensuring that the project quality meets safety requirements.

As a mandatory national standard, the relevant provisions of this code are legally binding, and all steel structure engineering construction activities must be strictly in compliance. It is recommended that relevant enterprises and practitioners, in light of their specific operational contexts, conduct engineering design, construction, and management in accordance with the requirements set forth in this code.

Important Disclaimer: This document provides only a summary of the standard’s key points; it is neither the official text of the standard nor an official interpretation. It is intended solely for industry learning and reference purposes and does not substitute for professional technical judgment. For the complete text of the standard, please refer to the official version published by the Ministry of Housing and Urban–Rural Development and the State Administration for Market Regulation, which can be accessed through authoritative channels such as the National Standards Full-Text Public Access System. The final authority for interpreting the standard rests with the issuing authorities.
 

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