This paper presents the details and analysis of a fire test conducted on a stainless steel cellular beam, as well as the development of a finite element model to further study the behavior. Cellular beams are increasingly popular in the construction as they provide a structurally and materially efficient design solution as well as allowing the passage of services. Their behavior in fire can be challenging as the web-post typically reaches higher temperatures than equivalent webs in solid beams. Stainless steel is also increasingly popular for structural applications, mainly due to its excellent corrosion resistance, as well as its other attractive physical and mechanical attributes. The focus in this paper is on the behavior of stainless steel cellular beams, which combine the attractive qualities of stainless steel with the structural efficiency of beams with openings, in fire. A fire test has been conducted which is described and discussed. Then, a finite element analysis model is developed to analyze the thermo-mechanical behavior of unprotected stainless steel cellular beams. The model is validated using the experimental results and then employed to investigate the important parameters which influence the behavior.

本文介绍了在不锈钢蜂窝梁上进行的耐火测试的详细信息和分析，以及为进一步研究其行为而开发的有限元模型。蜂窝梁在结构上越来越受欢迎，因为它们提供了结构上和材料上有效的设计解决方案，并允许服务通过。它们在火中的行为可能具有挑战性，因为腹板柱的温度通常比实心梁中的等效腹板高。不锈钢在结构应用中也越来越受欢迎，这主要归因于其出色的耐腐蚀性以及其他吸引人的物理和机械特性。本文的重点是不锈钢蜂窝梁的性能，结合了不锈钢的诱人品质和带孔的横梁在火灾中的结构效率。已经进行了燃烧测试，对此进行了描述和讨论。然后，建立了一个有限元分析模型来分析未保护的不锈钢蜂窝梁的热机械性能。使用实验结果验证该模型，然后将其用于研究影响行为的重要参数。