已知,箍筋直徑6mm,混凝土保護(hù)層厚度25mm,135°/135°彎鉤增長(zhǎng)值為80mm)計(jì)算箍筋的下料長(zhǎng)度。 外包尺寸=(),下料長(zhǎng)度=()
A.1548mm,1648mm B.1648mm,1772mm C.1748mm,1772mm D.1800mm,1648mm