Overview of China’s Steel Structure Codes and Standards System
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摘要: 对我国钢结构规范及标准体系的现状进行了总结,并对国内主要钢结构规范及标准的发展历程和技术内容变迁进行了梳理。我国钢结构标准规范体系的发展历程可分为4个阶段:20世纪50年代参照前苏联钢结构规范的内容制订了我国第一本钢结构设计类规范;60—70年代,结合我国国情和工程经验,对钢结构的设计规范进行了修订,并推出了薄壁型钢结构方面的规范;80—90年代,随着钢结构工程建设的巨大需求,在前期基础上,推出了高层民用建筑、网架结构、网壳结构和门式钢架等方面的相关规范。对钢结构领域重点规范的发展历程进行了总结,介绍了《钢结构设计标准》的编制和修订历程,总结了规范修订的主要内容,从设计理论、钢材本构关系、结构分析、抗震设计、结构稳定和连接件设计等方面与欧洲设计规范进行了比较。总结了《冷弯薄壁型钢结构技术规范》的修订历程和主要修订内容,并与澳大利亚和美国相关方面的规范进行了对比,总结了我国与国外规范在结构力学性能指标计算方面的差异。针对钢结构材料方面的相关标准,介绍了碳素结构钢系列、低合金结构钢系列和建筑结构用钢板系列等方面的规范发展历程,重点总结了各版本规范的增补内容,以及部分材料力学性能指标的概念和定义修正。以上研究表明,我国钢结构规范标准正逐步赶上甚至在一些方面超越了国际标准,但在标准规范的广度、深度、修编频率等方面还可进一步提高。Abstract: The current state of Chinese steel structure codes and standards system is summarized, with a review of the development process and technical content changes in major domestic codes and standards. The development process of Chinese steel structure standard code system is outlined, which can be divided into four stages: in the 1950s, China adopted the former Soviet Union's steel structure code as its first design class code; in the 1960s and 1970s, revisions were made to this code based on Chinese national conditions and engineering experience, including introducing specifications for thin-walled steel structures; In response to high demand for steel construction during the 1980s and 1990s, additional specifications were introduced for high-rise civil buildings, grid structures, reticulated shell structures and portal steel frames. Also, this research provides a comprehensive overview of the development process of key codes in the field of steel structure. The preparation and revision process of the "Standard for design of steel structures" is introduced, along with a summary of the main content revised in the code. A comparative analysis is conducted between design theories, steel constitutive relationships, structural analysis methods, seismic designs, structural stability considerations, and connector designs in relation to European design codes. Furthermore, an examination is made on the revision process and main contents of the "Technical code of cold-formed thin-wall steel structures". Differences between Chinese and foreign codes regarding calculations for structural mechanical properties are compared against relevant Australian and American codes. Additionally, this research focuses on introducing the development process of Carbon structural steel series, Low alloy Structural steel series as well as Steel plate for Building structures series within relevant standards for steel structure materials. Moreover, it summarizes supplementary content from each version of these codes while revising concepts and definitions related to mechanical properties. The aforementioned research demonstrates that Chinese steel structure standards are gradually aligning with and even surpassing international advancements in certain aspects. However, there is room for further improvement in terms of the comprehensiveness, depth, and frequency of standard and specification revisions.
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Key words:
- steel structures /
- standards and specifications /
- development process
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