Prestressed anchor lower base plate with steel strand positioning and force transferring functions

The pre-stressed anchor lower base plate with the steel strand positioning and force transferring functions comprises an anchor base plate body, an anchorage device assembly, a plurality of clamping pieces and a plurality of steel strands, the anchorage device assembly and the anchor base plate body are round cakes with holes, the clamping pieces are assembled cone-shaped bodies with holes, the assembling direction of the clamping pieces is parallel to the axial direction, reinforcing ribs are arranged on the single side of the anchor base plate body in the circumferential direction, and the steel strands are arranged on the reinforcing ribs. The anchorage device is tightly attached to the side, provided with the reinforcing ribs, of the anchor bearing plate, the clamping piece axially fixes one end of the steel strand, the anchor bearing plate corresponds to the through hole of the anchorage device assembly, the steel strand penetrates through the through hole, the clamping piece is installed at the hole dia