板式楼梯变截面挠度计算

针对目前规范中挠度计算公式的局限性,根据材料力学和混凝土规范的公式计算考虑踏步的变板厚的梯板挠度,结果表明：按变截面板计算较容易满足规范规定挠度,相应的板可做薄,达到节约成本的目的。

The cross section deflection calculation of plate stairway

Against to the limit of deflection calculation formula of present standard,according to material mechanics and concrete standard formula,the stairway plate deflection was calculated considered step change plate thickness.The result indicated that calculation according to change cross section plate calculation,the standard deflection can be easy to satisfy,and the corresponding plate can be made thin,which reach the goal of saving cost.