A.30m B.40m C.45m D.54m
A.應(yīng)采用現(xiàn)澆樓板,其混凝土強(qiáng)度等級不應(yīng)低于C30,并應(yīng)雙層雙向配筋,且每層每向的配筋率不宜小于0.25% B.應(yīng)采用現(xiàn)澆樓板,其混凝土強(qiáng)度等級不應(yīng)低于C25,并應(yīng)雙層雙向配筋,且每層每向的配筋率不宜小于0.25% C.應(yīng)采用現(xiàn)澆樓板,其混凝土強(qiáng)度等級不應(yīng)低于C30,并應(yīng)雙層雙向配筋,且每層每向的配筋率不宜小于0.20% D.應(yīng)采用現(xiàn)澆樓板,其混凝土強(qiáng)度等級不應(yīng)低于C25,并應(yīng)雙層雙向配筋,且每層每向的配筋率不宜小于0.20%