使用状态下钢筋混凝土双向板的挠度研究

摘要

The objective of this article was to analyze the deflection for reinforced concrete Two-way slabs during serviceability states with test in situ,the method proposed in standard and the finite element method, the results showed that the deflection obtained by test in situ is 0.37mm,obtained by the method proposed in standard is 0.57mm and obtained by the finite element method is 0.22mm,is less than the deflection obtained by test in situ. From these results it can be concluded that the method proposed in standard for calculating deflection of reinforced concrete two-way slabs is conservative than test in situ,but for the finite element method,it can reflect the real deflection of reinforced concrete two-way slabs,basically.%通过试验研究、规范公式计算及有限元分析的方法,分析计算了使用阶段相同荷载作用下钢筋混凝土双向板的挠度,试验结果为0.37mm、规范中公式的计算结果为0.57mm、有限元计算结果为0.22mm,表明采用规范中受弯构件挠度计算公式计算钢筋混凝土双向板的挠度相对于试验结果偏于保守,有限元计算结果较试验值偏小,但基本可以反映双向板的挠度值.