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本文对钢筋混凝土井格梁板结构作了整体塑性极限分析，得出极限承载力的实用计算通式及相应的系数供设计选用．文中引用了梁板同时破坏以及各梁内力间比例符合弹性比例的假定，所得结果比未考虑梁板整体作用塑性分析结果［１］更合理可靠。此外，本文可考虑梁的实际交承情况，解决了按弹性法只能简化为简支或固端之不足，所得结果比弹性结果经济合理，更符合实际受力状况。
In this paper, the overall plastic limit analysis of the reinforced concrete grid plate structure is carried out, and the practical calculation formula of the ultimate bearing capacity and the corresponding coefficient are obtained for design selection. This paper quotes the assumption that the simultaneous failure of beams and plates and the proportion of the internal forces of each beam are in line with the elasticity ratio. The results obtained are more reasonable and reliable than the plastic analysis results without considering the overall effect of beam and plate [1]. In addition, this article can consider the actual bearing of the beam and solve the problem that the elasticity method can only be simplified to simple support or fixed end. The result is more economical and reasonable than the elastic result and more in line with the actual stress conditions.