安海玉   凌光容
    （天津大学建筑设计研究院 300072）

[提要]  考虑密肋板双向受力的相关性和钢筋混凝土的非线性特性，采用刚度等效的正交各向异性板单元模型求解密肋板在竖向荷载下的变形，编制了程序WAF;并用试验结果验证其正确性，证明这一方法准确易行，适于工程应用。
[关键词]  密肋板  板单元  开裂弯矩  屈服刚度

Considered relativity of two-way and nonlinear behavior of reinfored concrete, analytical method for the orthotropic rigidities of waffle slab under vertical loads is presented. Software namecl“WAF”is programmed. The experimental  results verify the proposed analytical method.The method is valid for engineering.
Keywords:  waffle slab; slab element; bending moment; cracking; yield stiffness