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首页> 外文期刊>International journal of structural stability and dynamics >BEAM-COLUMN RESISTANCE OF STEEL MEMBERS: A COMPARATIVE STUDY OF AISC LRFD AND EC3 APPROACHES
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BEAM-COLUMN RESISTANCE OF STEEL MEMBERS: A COMPARATIVE STUDY OF AISC LRFD AND EC3 APPROACHES

机译：钢梁的梁柱抗力：AISC LRFD和EC3方法的比较研究

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摘要

The paper presents a comparative study of a well-established steelwork design standard, the American AISC LRFD, and the new European code for the design of steel structures, Eurocode 3. The study is focused on the resistance capacity of steel members subjected to one of the following load cases: axial compression, bending, and combined axial compression and bending. First, the paper compares the formulation of both codes in order to identify similarities and differences. Particular attention is given to the resistance of beam columns since many steel structural members in building structures fall into this category. In the case of pure bending and combined axial compression and bending, the paper considers two extreme cases of linear moment distribution: equal end moments and opposite end moments. The results are presented graphically in order to make possible their interpretation and to detect significant differences in resistance. The comparative study shows that the resistance capacities given by LRFD and EC3 can differ appreciably for some of the cases considered. Moreover, there are also significant differences between the two methods proposed by the Eurocode when slenderness is high and the beam is subjected to linear moment distribution with opposite end moments. Finally, the paper stresses those points where each standard offers a simpler approach.
机译：本文介绍了比较完善的钢结构设计标准（美国AISC LRFD）和新的欧洲钢结构设计规范（欧洲规范3）的比较研究。该研究的重点是承受以下某一方面的钢构件的抗力以下载荷情况：轴向压缩，弯曲以及轴向压缩和弯曲的组合。首先，本文比较了两种代码的表述方式，以识别异同。由于建筑结构中的许多钢结构构件都属于此类，因此特别要注意梁柱的抗力。在纯弯曲以及轴向压缩和弯曲相结合的情况下，本文考虑了线性矩分布的两种极端情况：相等的端力矩和相反的端力矩。以图形方式显示结果，以便对其进行解释并检测电阻的显着差异。对比研究表明，在某些情况下，LRFD和EC3给出的电阻容量可能会有明显差异。此外，当细长度高且光束受到具有相反端力矩的线性力矩分布时，欧洲规范提出的两种方法之间也存在显着差异。最后，本文强调了每个标准提供更简单方法的那些方面。

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