| Behavior of steel-concrete composite slabs subjected to standard fire |
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| 作者姓名： | 毛小勇 张耀春 韩林海 |
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| 作者单位： | School of Civil Engineering，Harbin Institute of Technology，Harbin 150001，China |
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| 摘 要： | 0 ＩＮＴＲＯＤＵＣＴＩＯＮＣｏｍｐｏｓｉｔｅｓｌａｂｓｗｉｔｈｐｒｏｆｉｌｅｄｓｔｅｅｌｓｈｅｅｔｉｎｇｈａｖｅｍａｎｙｇｏｏｄｐｒｏｐｅｒｔｉｅｓ,ｓｕｃｈａｓｈｉｇｈｌｏａｄａｂｉｌｉｔｙ ,ｇｏｏｄｐｌａｓｔｉｃｉｔｙａｎｄｅａｓｙｔｏｂｅｂｕｉｌｔｅｔｃ .,ｓｏｔｈｅｙｈａｖｅｂｅｅｎｕｓｅｄｍｏｒｅａｎｄｍｏｒｅｏｆｔｅｎｉｎｒｅｃｅｎｔｙｅａｒｓ ,ｅｓｐｅｃｉａｌｌｙｉｎｈｉｇｈ ｒｉｓｅｂｕｉｌｄｉｎｇｓ .Ａｌｏｔｏｆｒｅｓｅａｒｃｈｗｏｒｋｈａｓｂｅｅｎｄｏｎｅｏｎｔｈｅｍｅ ｃｈａ…
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Behavior of steel-concrete composite slabs subjected to standard fire |
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| MAO Xiao-yong,ZHANG Yao-chun,HAN Lin-hai.Behavior of steel-concrete composite slabs subjected to standard fire[J].Journal of Harbin Institute of Technology,2002,9(2). |
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| Authors: | MAO Xiao-yong ZHANG Yao-chun HAN Lin-hai |
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| Abstract: | Finite element method is employed to calculate the temperature fields for two kinds of steel concrete composite slabs: composite slab with profiled steel sheeting and LJMB composite slab. The calculated results are in good agreement with those of tests. Fire resistance of the two kinds of composite slabs is calculated by using a numeric method. The results show that: due to heat absorbing of concrete, the performance of composite slabs under fire is better than that of unprotected steel structure, and fire resistance of composite slabs mentioned in this paper is at least 30 min subjected to standard fire. Parameters related to the fire resistance are discussed. It was found that with increasing of concrete strength and thickness of slab, fire resistance increases, and with increasing of steel strength and steel ratio, fire resistance decreases. Also thickness of fire proof is calculated by a numeric method. The results obtained in this paper may be referenced for practical engineering. |
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| Keywords: | Composite slab temperature fields valid load under fire failure criteria fire resistance fire proof finite element numeric method |
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