根据已有的钢筋混凝土楼板实验数据,首次提出一种采用假设的非线性均质材料、壳元模型,能够在结构整体分析中模拟钢筋混凝土楼板。首先,提出假设材料的参数化应力-应变关系,然后根据已有实验数据标定公式中参数,进而给出模拟各种强度等级混凝土楼板的材料应力-应变关系。通过计算结果与实验数据对比,证明该模型可以很好地模拟钢筋混凝土楼板的平面内非线性行为,并且在结构整体有限元分析中易于收敛。 Based on the existing experimental data of reinforced concrete floors, a nonlinear homogeneous material and shell element model using hypotheses is proposed for the first time, which can simulate reinforced concrete floors in the overall analysis of the structure. Firstly, the parametric stress-strain relationship of hypothetical materials is proposed. Then the parameters in the formula are calibrated according to the existing experimental data, and then the stress-strain relationship of the concrete slabs with various strength levels is simulated. Comparing the calculated results with the experimental data, it is proved that the model can simulate the in-plane nonlinear behavior of reinforced concrete slabs well, and it is easy to converge in the overall finite element analysis of the structure.