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Experimental Analysis of Stability of Aluminium Beams in Case of Fire

机译:火灾下铝梁稳定性的实验分析

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Fire is often the dominant design criterion for aluminium structures. Present design rules for aluminium constructions in fire neglect both the decrease in susceptibility to local buckling and the effects of creep, that are intrinsic to aluminium. They may therefore either overestimate or underestimate the temperature of failure, depending on the load and exposure period. As part of a larger research program aimed at remedying this situation, the present paper reports the results of an experimental study on 28 aluminium SHS members of alloy AA6060-T66 loaded in bending, with different cross-sections, temperatures, and rates of heating. The experimental set-up employs an electric heating tube or 'sock' on the inside of the specimen as well as heated supports and load application point, which give a high degree of control of temperature in time.
机译:火灾通常是铝结构的主要设计标准。火灾中铝结构的现行设计规则既忽略了铝固有的屈曲敏感性降低,又忽略了蠕变的影响。因此,根据负载和暴露时间,它们可能会高估或低估故障温度。作为旨在纠正这种情况的大型研究计划的一部分,本论文报告了对28 AA6060-T66铝合金SHS铝合金SHS构件进行弯曲弯曲,不同横截面,温度和加热速率的实验研究结果。实验装置在样品内部使用电加热管或“袜子”,以及加热的支撑物和载荷施加点,可以对温度进行高度控制。

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