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(1 杭州市電力設(shè)計(jì)院有限公司, 杭州 310014; 2 東北電力大學(xué)建筑工程學(xué)院, 吉林 132012)

摘要: 當(dāng)前鋼結(jié)構(gòu)裝配式變電站仍存在圍護(hù)結(jié)構(gòu)裝配化程度低、主體結(jié)構(gòu)防火構(gòu)造與圍護(hù)結(jié)構(gòu)不匹配等技術(shù)問(wèn)題,基于此,提出了一種適用于鋼結(jié)構(gòu)裝配式變電站的一體化圍護(hù)結(jié)構(gòu),一方面實(shí)現(xiàn)對(duì)梁柱的防火保護(hù),同時(shí)也可以實(shí)現(xiàn)防火板與墻板的一體化. 對(duì)單榀鋼框架進(jìn)行了足尺抗火試驗(yàn),并對(duì)不同厚度蒸壓輕質(zhì)混凝土防火板(ALC板)的抗火性能進(jìn)行了有限元分析. 結(jié)果表明:由 50mm 厚 ALC 板+50mm 厚巖棉層+50mm 厚 ALC 板組成的一體化墻板和使用 100mm 厚 ALC 板作為梁柱防火板的主體結(jié)構(gòu)均能滿足 ISO-834 標(biāo)準(zhǔn)火災(zāi)模擬下的耐火極限要求.

關(guān)鍵詞: 裝配式變電站; 鋼結(jié)構(gòu); 一體化圍護(hù)體系; 抗火性能; 蒸壓輕質(zhì)混凝土板

中圖分類(lèi)號(hào):TU398. 9 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2023)05-0098-05

DOI:10. 19701 / j. jzjg. LS210277

Study on fire resistance performance on integrated enclosure structure of steel prefabricated transformer substation

SHENG Xueqing1, ZENG Cong2, PAN Shengjun1, CHEN Jiahui1

(1 Hangzhou Electric Power Design Institute Co. , Ltd. , Hangzhou 310014, China;2 School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin 132012, China)

Abstract: The present steel prefabricated transformer substation still have some technical problems, such as low assemblingdegree of enclosure structure and mismatching of main structure fire prevention structure and enclosure structure. Based onthis, an integrated enclosure structure for steel prefabricated transformer substation was proposed. It can realize the fireprotection of the beams and columns, and also integrate fire prevention board with wall panel at the same time. A full-scalefire resistance test was carried out on the single-thickness steel frame, and the fire resistance performance of autoclavedlightweight concrete board (ALC board) with different thicknesses was analyzed by finite element method. The results showthat the integrated wall board composed of 50mm ALC board + 50mm rock wool layer + 50mm ALC board and the mainstructure using 100mm ALC board as the fire prevention board can meet the fire resistance limit requirements under firesimulation in standard ISO-834.

Keywords: prefabricated transformer substation; steel structure; integrated enclosure structure; fire resistanceperformance; autoclaved lightweight concrete board

∗國(guó)網(wǎng)浙江省電力公司科技項(xiàng)目:裝配式變電站模塊化建設(shè)關(guān)鍵技術(shù)研究及應(yīng)用(188002).

第一作者:盛學(xué)慶,碩士,正高級(jí)工程師,主要從事土建設(shè)計(jì)及管理,Email: sxq_ks@ 163. com.

[引用本文] 盛學(xué)慶,曾聰,潘勝軍,等. 鋼結(jié)構(gòu)裝配式變電站一體化圍護(hù)結(jié)構(gòu)抗火性能研究[J]. 建筑結(jié)構(gòu),2023,53(5):98-102. SHENG Xueqing,ZENG Cong ,PAN Shengjun,et al. Study on fire resistance performance on integratedenclosure structure of steel prefabricated transformer substation[J]. Building Structure,2023,53(5):98-102.