Tensioning device for prestressed concrete member

The utility model provides a tensioning device for a prestressed concrete member. The tensioning device for the prestressed concrete member comprises a base; the concave seat is fixedly mounted at the top of the base; the two hydraulic cylinders I are fixedly mounted on the inner wall of the top and the inner wall of the bottom of the concave seat respectively; the two connecting plates are fixedly mounted on output shafts of the two hydraulic cylinders I respectively; the four concave pressing plates are fixedly arranged on the two connecting plates, and the four concave pressing plates are fixedly arranged on the two connecting plates; the two hydraulic jacks are arranged on the two sides of the concave base respectively; and the two positioning anchorage devices are arranged on the two sides of the concave base respectively. The tensioning device for the prestressed concrete member has the advantages that the steel strands on the two sides of the prefabricated member can be tensioned at the same time, and