面向抗震设计的钢结构截面分类

Classifications of Cross-Sections Oriented to Seismic Design of Steel Buildings

Institute of High Performance Structures, Zhejiang University, Hangzhou 310058, China

摘要: 介绍了欧洲、日本、美国和我国结构性能系数取值和截面宽厚比之间的对应关系。考察发现,美国的宽厚比等级划分比较没有规律;欧洲的宽厚比等级是从塑性、弹性分析和截面强度设计准则来划分的,但被用于抗震设计;日本和我国的宽厚比等级与结构性能系数有一一对应的关系。最后基于已有的研究成果提出了面向抗震设计的截面分类建议。
- 截面分类 /
- 抗震设计 /
- 结构性能系数
Abstract: The cross-sectional classification and the related structural performance factors of European, Japan, AISC and China were briefly reviewed and summarized in the paer. Tabulated values revealed that the classifications of AISC specifications were sometimes irregular and confusing; European classification was based on plastic/elastic analysis and cross-sectional moment capacity, but was used in seismic design; Japan and China’s classification was one-to-one correspondent to the system performance factors. Based on results of earlier systematic study, new classifications were proposed.
- cross-section classification /
- seismic design /
- structural performance factor

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