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(1 同濟(jì)大學(xué)建工系 上海 200092；2 上海機(jī)電設(shè)計(jì)研究院 200040)
［提要］利用鋼-混凝土組合樓蓋抗火性能非線性有限元分析程序?qū)Σ煌奢d大小、不同壓型鋼板厚度、不同配筋的壓型鋼板混凝土組合樓板進(jìn)行了抗火性能分析，找出了火災(zāi)影響下組合樓板結(jié)構(gòu)性能的因素，給出了計(jì)算組合樓板耐火時(shí)間的擬合公式，得到了一些適用于壓型鋼板混凝土組合樓板抗火設(shè)計(jì)的結(jié)論和建議。
［關(guān)鍵詞］ 組合樓板 抗火 參數(shù)分析 擬合公式 實(shí)用方法
A Practical Approach for Fire Resistance of Steelconcrete Composite Slabs/Jiang Shouchao1, Li Guoqiang1,Zhou Haosheng1,Lü Yi2(1 Dept. of Structural Engineering, Tongji University, Shanghai  200092, China; 2  Shanghai Institute of Mechanical & Electrical Engineering, Shanghai  200040, China)
Abstract:Employing the FEM analysis program  of the fire resistance of steelconcrete  composite floor, a parameter study is carried out on composite slabs. The effects of factors such as load level, thickness of steel deck and  slab, strength of concrete and reinforcing ratio in negative parts,are studied. A practical approach to obtain the fire resistance of composite slabs is developed by regression of numerical results. Some advices are proposed for the fire resistant design of composite slabs.
Keywords:composite slab;  fire resistance;  parameter study;practical approach;  regression method

*國(guó)家自然科學(xué)基金資助項(xiàng)目(59778032)。