中密方格网配筋混凝土圆板的极限分析和设计

Limit Analysis and Design of Circular Concrete Slabs with Nonhomogeneous Net Reinforcement

本文建议在混凝土圆板设计中以中密方格钢筋网代替常用的均匀方格钢筋网,可收到节省钢材12～22%的效果。文中用极限平衡法的上限解法(破坏线理论)推导了该种配筋体系的混凝土圆板在均布荷载下的极限承载能力计算公式,并提出了实用的设计建议。

This Paper Proposes a nonhomogeneous two-way steel net for reinforcing circular concrete slabs, instead of homogeneous one used commonly, which results in as many as 12-22% saving in steel. Based on the yield-line theory an upper bound solution for this type of slabs under uniformly distributed loading is obtained, and the design approach is also suggested.