(1 同济大学建工系 上海 200092；2 上海机电设计研究院 200040)
［提要］利用钢-混凝土组合楼盖抗火性能非线性有限元分析程序对不同荷载大小、不同压型钢板厚度、不同配筋的压型钢板混凝土组合楼板进行了抗火性能分析，找出了火灾影响下组合楼板结构性能的因素，给出了计算组合楼板耐火时间的拟合公式，得到了一些适用于压型钢板混凝土组合楼板抗火设计的结论和建议。
［关键词］ 组合楼板 抗火 参数分析 拟合公式 实用方法
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

*国家自然科学基金资助项目(59778032)。