基于 Reissner- Mindlin一阶剪切变形板理论 ,讨论了四边简支粘钢补强混凝土板的弯曲、屈曲和振动问题 .采用 Navier解和 Rayleigh- Ritz法导出弯曲分析中的挠度、弯矩和剪力以及屈曲和振动问题中的屈曲荷载和自振频率 .数值计算结果表明 ,混凝土板补强后挠度明显减小 ,屈曲荷载和自振频率 ,以及补强域内的弯应力显著增大 Based on Reissner-Mindlin first-order shear deformation plate theory, the bending, buckling and vibration of four-sided simply supported steel-reinforced concrete slabs are discussed. The deflection, bending moment and shear in bending analysis are derived by Navier method and Rayleigh- The buckling load and the natural frequency in the buckling and vibration problems are discussed.The numerical results show that the deflection of the concrete slab after reinforcement is obviously reduced and the buckling load and natural frequency and the bending stress in the reinforcing region increase significantly