1、20.2521.21kg=18.51kg(7.2-0.0252.47kg75.58kg(7.2-0.0250.888kg=13.59kg(7.2-0.0250.888kg13.59kg(7.2-0.0252)/0.2+1(0.22+0.652-80.03+20.1)0.395kg36.750.851.660.395kg=24.26kg(7.2-0.0252)0.2+1(0.352+0.20.077)0.222kg=36.750.551.0140.222kg=8.33kg2.如图所示,求现浇C25混凝土矩形梁钢筋用量。【解】22:(6.3+0.122)-0.05+3.50.2222.982kg=
2、47.86kg12:0.120.8882kg=13.02kg8:(0.5+0.25)2-0.158+0.160.395kg=8.25kg22:2)-0.025220.414(0.5-0.0252)+22)1kg=23.13kg22:2+23.如图所示,求带型混凝土基础钢筋用量。【解】20:(29.7+0.6-0.0352+0.2)2+(13.2+0.6-0.0353+(9.92+0.6-0.0352+0.2)+(6.6+0.6-0.0352+0.2)2.47kg=130.512.47kg=1289.44kg18 130.5182kg=2088.16kg22 (29.7+0.6-0.03562.98kg2.98kg=2333.52kg6 130.51(1.8-0.0352)0.15+10.395kg=646.1lkg8 (1.8-0.0352+6.250.006(130.510.15+1)0.222kg=349.02kg