矩形板式基础计算书

(b-B)2pxl/8=(5-1.6)2×78.34×5/8=566.02kN·m基础Y向弯矩:MⅡ=(l-B)2pyb/8=(5-1.6)2×78.34×5/8=566.02kN·m2、基础配筋计算(1)、底面长向配筋面积αS1=|MⅡ|/(α1fcbh02)=566.02×106/(1×14.3×5000×9482)=0.009ζ1=1-(1-2αS1)0.5=1-(1-2×0.009)0.5=0.009γS1=1-ζ1/2=1-0.009/2=0.996AS1=|MⅡ|/(γS1h0fy1)=566.02×106/(0.996×948×360)=1666mm2基础底需要配筋:A1=max(1666,ρbh0)=max(1666,0.0015×5000×948)=7110mm2基础底长向实际配筋:As1'=12756mm2≥A1=7110mm2满足要求!(2)、底面短向配筋面积αS2=|MⅠ|/(α1fclh02)=566.02×106/(1×14.3×5000×9482)=0.009ζ2=1-(1-2αS2)0.5=1-(1-2×0.009)0.5=0.009γS2=1-ζ2/2=1-0.009/2=0.996AS2=|MⅠ|/(γS2h0fy2)=566.02×106/(0.996×948×360)=1666mm2基础底需要配筋:A2=max(1666,ρlh0)=max(1666,0.0015×5000×948)=7110mm2基础底短向实际配筋:AS2'=12756mm2≥A2=7110mm2满足要求!(3)、顶面长向配筋面积基础顶长向实际配筋:AS3'=12756mm2≥0.5AS1'=0.5×12756=6378mm2满足要求!(4)、顶面短向配筋面积基础顶短向实际配筋:AS4'=12756mm2≥0.5AS2'=0.5×12756=6378mm2满足要求!