The invention is a concrete hollow component, comprising hollow forms, and characterized by that at least two hollow forms are arranged separately, their opposite sides compose a cast-in-site concrete ribbed die space, there is at least a spacing support-pull piece in the ribbed die space to connect the two hollow forms into an organic whole, there is no connected infrabasal plates between the hollow forms, and reinforcing ribbed slabs are inserted in slots in the walls of the hollow forms. And it is applied to cast in site reinforced concrete or prestressed reinforced concrete hollow floor system, roof system, sole plates, wall bodies and hollow bridges. |