钢筋弯钩及平直段长度表拉筋R235钢筋180度直钩HRB335钢筋135度弯钩HRB335钢筋90度直钩d(钢筋直径)l(弯钩长度)d(钢筋直径)l(弯钩长度)d(钢筋直径)l(弯钩长度)mmcmmmcmmmcm6810124.55.57.08.581012161820222528327.08.510.513.515.517.018.521.023.527.081012161820222528329.511.514.018.521.023.025.529.032.537.0箍筋单肢箍(环形箍)R235钢筋135度弯钩mm681012cm4.56.07.59.0(抗震)cm7.510.012.515.0HRB335钢筋135度弯钩mm10121620cm8.510.513.517.0(抗震)cm13.516.521.527.0d(钢筋直径)l(弯钩长度)l(弯钩长度)d(钢筋直径)l(弯钩长度)l(弯钩长度)
