Axially Loaded Stainless Steel Columns in Case of Fire
Axially Loaded Stainless Steel Columns in Case of Fire
复制标题
发生火灾时的轴向承载不锈钢柱
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
J. Franssen
中科院分区：
文献类型：
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作者：
N. Lopes;P. Real;L. Silva;J. Franssen
用于不锈钢构件耐火性评估的欧洲规范 3 的简单模型是基于用于碳钢结构构件的程序。然而，由于这两种材料的本构定律存在差异，预计在这两种材料中不可能使用欧洲规范 3 中提出的相同的构件稳定性计算公式。本文旨在增加对不锈钢轴向载荷柱在高温下行为的了解。为此，使用几何和材料非线性计算机代码来确定这些元件的屈曲载荷。对欧洲规范公式进行了评估，并提出了一项新提案，该提案可确保与数值模拟相比获得准确且保守的结果。
The simple model of Eurocode 3, for the fire resistance evaluation of stainless steel members, are based on the procedures used for carbon steel structural elements. However, due to the existing differences in the constitutive laws of these two materials, it is expected that it would not be possible to use, in both materials, the same formulae for the member stability calculation, as proposed in Eurocode 3. This paper aims at increasing the knowledge on the behaviour of stainless steel axially loaded columns at elevated temperatures. For this purpose, a geometrical and material non linear computer code has been used to determine the buckling load of these elements. The Eurocode formulae are evaluated and a new proposal, that ensures accurate and conservative results when compared with the numerical simulations, is presented.