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首页> 外文期刊>Journal of structural fire engineering >Performance of fire protective coatings on structural steel member exposed to high temperature
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Performance of fire protective coatings on structural steel member exposed to high temperature

机译：在高温下结构钢构件上的防火涂层的性能

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Purpose - The purpose of this study is to investigate the performance of fire protective materials in protecting steel section. A new indexing system is introduced, named as fire endurance index (FEI), which can be used to evaluate the performance of fire protective materials. Design/methodology/approach - In this study, experiments were carried out using W4 x 13 steel section. Eight samples were prepared; one was a bare steel section without any coating material, and seven were prepared using four types of materials such as vermiculite-gypsum plaster, gypsum plaster, concrete cover and glass wool-concrete cover for fireproofing of the sections. An enclosed electric coiled furnace was used for heating the samples for a certain period. The duration of protection was determined, and the FEI of the materials was calculated. The higher the index value is, the better the performance. Findings - The results demonstrate that the glass-wool-concrete cover offered the best performance at high temperature among the four types of materials. In the experiment with glass-wool-concrete cover, the furnace temperature reached 750°C, whereas the steel temperature reached only 100°C. The FEI of the coatings were calculated. Among the eight samples, glass wool-concrete cover also achieved the highest index value. Research limitations/implications - The experimental work was performed using a limited number of specimens. Furthermore, the robustness of the indexing system needs to be evaluated with other materials and a wide range of heating rate and temperature. This study sets the foundation for future work. Practical implications - The findings of this research may contribute to a better understanding of the performance of the materials used as fire protective coatings. This might be helpful for the researchers and practitioners in their design and implementation of legislation of fire safety codes. Social implications - Understanding the performance of the fire protective coatings will help in evaluating the fire resistance capabilities of the materials to use for the structural steel members, which may protect collapses and disasters of buildings. Originality/value - This paper deals with the performance of four types of materials, that can be used as fire protective coatings for structural steel members. Furthermore, the FEI explicitly indicated their performance with numerical values. In this study, the hearing of the specimens was performed using a non-standard fire curve based on the concept that naturally occurring incidents of fire do not follow the standard fire curves.
机译：目的 - 本研究的目的是探讨防火材料在保护钢部件中的性能。介绍了一种新的索引系统，名为Fire耐用指数（FEI），可用于评估防火材料的性能。设计/方法/方法 - 在本研究中，使用W4×13钢部分进行实验。制备八个样品;一个是没有任何涂层材料的裸钢部，使用vermiCulite-gypsum石膏，石膏石膏，混凝土盖板和玻璃棉羊毛混凝土盖，使用四种材料制备七种材料。封闭的电动卷绕炉用于加热样品一定时期。确定保护持续时间，并计算材料的FEI。索引值越高，性能越好。结果 - 结果表明，玻璃 - 羊毛混凝土罩在四种类型的材料中提供了高温的最佳性能。在玻璃羊毛混凝土盖的实验中，炉温达到750°C，而钢温度仅达到100°C。计算涂层的FEI。在八个样品中，玻璃羊毛混凝土罩也实现了最高指标值。研究限制/影响 - 使用有限数量的标本进行实验工作。此外，需要用其他材料和广泛的加热速率和温度评估索引系统的稳健性。本研究设定了未来工作的基础。实际意义 - 该研究的结果可能有助于更好地理解用作防火涂料的材料的性能。这可能对研究人员和从业者的设计和实施进行了消防安全码的立法有所帮助。社会影响 - 了解防火涂料的性能，有助于评估材料用于结构钢构件的材料的耐火能力，这可能保护建筑物的坍塌和灾难。原创性/价值 - 本文涉及四种材料的性能，可用作结构钢构件的防火涂层。此外，FEI明确地指出了它们的性能，具有数值。在这项研究中，使用基于自然发生的火灾发生的概念来执行标本的听力，该概念不会遵循标准的火曲线。

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