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Experimental Study of Load-Bearing Cold-Formed Steel Walls Exposed to Realistic Design Fires

机译:逼真的设计火灾下承重冷弯型钢墙的试验研究

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This paper presents the details of full scale fire tests of LSF wall panels conducted using realistic fire time-temperature curves. Tests included eight LSF wall specimens of various configurations exposed to both parametric design and natural fire curves. Details of the fire test set-up, test procedure and the results including the measured time-temperature and deformation curves of LSF wall panels are presented along with wall stud failure modes and times. This paper also compares the structural and thermal behavioural characteristics of LSF wall studs with those based on the standard time-temperature curve. Finally, the stud failure times and temperatures are summarized for both standard and realistic design fire curves. This study provides the necessary test data to validate the numerical models of LSF wall panels and to undertake a detailed study into the structural and thermal performance of LSF wall panels exposed to realistic design fire curves.
机译:本文介绍了使用真实的着火时间-温度曲线对LSF墙板进行的全面耐火测试的细节。测试包括暴露于参数设计和自然火灾曲线下的八种不同配置的LSF墙样本。详细介绍了耐火测试设置,测试程序和结果,包括测得的LSF墙板的时间-温度和变形曲线,以及墙钉的破坏模式和时间。本文还根据标准时间-温度曲线比较了LSF墙钉的结构和热行为特征。最后,总结了标准和实际设计火灾曲线的双头螺栓失效时间和温度。这项研究提供必要的测试数据,以验证LSF墙板的数值模型,并对暴露于实际设计火灾曲线的LSF墙板的结构和热性能进行详细研究。

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