（1 山东大学土建与水利学院  济南 250061；2 同济大学土木工程学院  上海 200092）
【提要】  对现行钢结构设计规范，包括中国规范（GB50017—2003）、美国规范（LRFD）、欧洲规范（EC3）和香港标准（HKC），进行了较详尽的比较，讨论了梁柱设计的各种原理和流程，总结了各规范设计方法的相似性与不同点。LRFD只利用一个验算方程来设计框架柱，而其他三种规范均需进行截面承载力、平面内稳定和平面外稳定承载力验算。比较发现，四种规范或标准各有优缺点，没有哪一种规范在各个方面均比其它规范更为优越。
【关键词】  框架柱  设计规范  一致性  差异
Comparison of Present Design Codes or Standards Using for Columns Design in Steel FramesⅠ: Design Approaches/Hou Hetao1，Li Guoqiang2（1 School of Civil Engineering，Shandong University，Jinan 250061，China；2 School of Civil Engineering，Tongji University，Shanghai 200092，China）
Abstract:A detailed comparison of the approaches for design of beamcolumns in steel frameworks specified in the present Chinese（GB50017—2003），American（LRFD），European（EC3） and HongKong（HKC） is presented. The philosophies and procedures for beamcolumn design are discussed and the key similarities and differences among the current approaches are summarized. The LRFD specification employs only a single equation to assess all the possible modes of failure. In contrast，the other three standards employ separate interaction curves for crosssection strength，member inplane strength，and member lateraltorsional strength. It is concluded that all the standards have distinct advantages as well as limitations，and there is no particular philosophical approach given in standards that is clearly superior in all aspects.
Keywords:frame column；design codes；similarities；differences