钢结构装配式变电站一体化围护结构抗火性能研究
引用文献：
盛学庆 ，曾聪， 潘胜军， 陈佳慧. 钢结构装配式变电站一体化围护结构抗火性能研究[J]. 建筑结构，2023，48（05）：98-102.
SHENG Xueqing ，ZENG Cong， PAN Shengjun， CHEN Jiahui. Study on fire resistance performance on integrated enclosure structure of steel prefabricated transformer substation[J]. Building Structure，2023,48（05）：98-102.
摘要：当前钢结构装配式变电站仍存在围护结构装配化程度低、主体结构防火构造与围护结构不匹配等技术问题，基于此，提出了一种适用于钢结构装配式变电站的一体化围护结构，一方面实现对梁柱的防火保护，同时也可以实现防火板与墙板的一体化。对单榀钢框架进行了足尺抗火试验，并对不同厚度蒸压轻质混凝土防火板(ALC板)的抗火性能进行了有限元分析。结果表明：由50mm厚ALC板+50mm厚岩棉层+50mm厚ALC板组成的一体化墙板和使用100mm厚ALC板作为梁柱防火板的主体结构均能满足ISO-834标准火灾模拟下的耐火极限要求。
关键词：装配式变电站；钢结构；一体化围护体系；抗火性能；蒸压轻质混凝土板；
基金：国网浙江省电力公司科技项目：装配式变电站模块化建设关键技术研究及应用(188002)。
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Study on fire resistance performance on integrated enclosure structure of steel prefabricated transformer substation
Abstract: The present steel prefabricated transformer substation still have some technical problems, such as low assembling degree of enclosure structure and mismatching of main structure fire prevention structure and enclosure structure. Based on this, an integrated enclosure structure for steel prefabricated transformer substation was proposed. It can realize the fire protection of the beams and columns, and also integrate fire prevention board with wall panel at the same time. A full-scale fire resistance test was carried out on the single-thickness steel frame, and the fire resistance performance of autoclaved lightweight concrete board(ALC board) with different thicknesses was analyzed by finite element method. The results show that the integrated wall board composed of 50mm ALC board +50mm rock wool layer +50mm ALC board and the main structure using 100mm ALC board as the fire prevention board can meet the fire resistance limit requirements under fire simulation in standard ISO-834.
Keywords: prefabricated transformer substation; steel structure; integrated enclosure structure; fire resistance performance; autoclaved lightweight concrete board
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