钢筋笼内的螺旋型箍筋重量的计算方法N*P2+(D-2b+d0)2*3.142+2个弯勾增加长度 里面部分是根号下N螺旋圈数N=L/P(L为构件长度P为螺距D为构件直径b保护层 d0箍筋直径 每米圆柱螺旋箍筋长度表 单位 米柱径 螺距 0.20.250.30.350.40.450.50.550.0510.1112.6415.7918.932225.1828.3331.430.068.4210.5313.1515.7718.3720.9823.626.190.086.327.959.1211.8913.8415.817.7619.70.15.096.367.939.5110.0712.6414.2115.760.153.394.255.296.347.398.439.4810.51