A.ηe0>0.3h0 B.ηe0≤0.3h0 C.x>ξjgh0 D.x≤ξjgh0
A.截面尺寸過(guò)大,應(yīng)按最小配筋率配筋; B.截面尺寸過(guò)小,宜加大截面尺寸; C.?。ˋg+A′g)=0.03bh D.取Ag=A′g=0.02bh
A.混凝土應(yīng)力增大,鋼筋應(yīng)力增大; B.混凝土應(yīng)力增大,鋼筋應(yīng)力減小; C.混凝土應(yīng)力減小,鋼筋應(yīng)力減??; D.混凝土應(yīng)力減小,鋼筋應(yīng)力增大