中文摘要：

针对《混凝土结构设计规范》（GB50010—2002）中受弯构件刚度计算公式仅适用于单向受弯这一突出问题，提出用“双向板带叠加法”计算柱支承板板格中心变形的思路和方法。应用有限元分析结果拟合出柱支承板支座控制截面的弯矩最大值Mmax与弯矩平均值劢比值（Mmax/M^-）的计算公式，并据此提出柱支承板裂缝验算建议方法。

英文摘要：

In view of the outstanding problem that the stiffness formula of the flexural member in the current＂ Code for Design of Concrete Structures＂ （GB 50010 - 2002） can only be used for one-way flexural member, the two-way slab strip superposition method for calculating deflection in the panel center of flat plate supported by column（FPSC） is presented. The calculation formulas of ratio Mmax /M^- of the maximum moment（ Mmax ） to the average moment（M^-） at the critical section of support of FPSC is given by finite element analysis and curvefitting. Based on the method and formula, recommendatory method on crack check for FPSC is presented.