板、梁最小使用表格配筋率

板、梁最小配筋率（最小配箍率取0.45ft/fc与0.2%取较大值）C20C25C30C35C40C45Ⅰ级钢0.236%0.272%0.306%0.336%Ⅱ级钢0.2%0.2%0.215%0.23