[提要]  通过分析双向矩形混凝土板内力的实际分布情况，探讨双向板的合理配筋方案，提出了按弯矩等高线划分板的配筋域的方法，既可达到节省钢材的目的，又可确保安全。
[关键词]  混凝土  双向板  弯矩  弯矩等高线

Based on the analysis of real distribution of moment on the field of slab, an approach about economical reinforcement is investigated. According to the contour map of moment, the divisions for different amount of reinforcement can be achieved. Of course this way is economical as well as ensuring the strength of concrete slab.
Keywords:  two-way-slab; moment; contour map; moment