Prestressed anchorage device for concrete bridge construction

The invention belongs to the technical field of anchorage devices, and particularly relates to a prestressed anchorage device for concrete bridge construction, which comprises an anchor seat, the anchor seat is provided with a communication port and a plurality of steel bar ports, each steel bar port is communicated with the communication port, and the anchor seat is provided with a sprue gate. According to the invention, the socket with the internal thread is in threaded connection fit with the threaded cylinder, so that a user can conveniently detach and replace the socket base as required, the user can conveniently select the corresponding anchorage device socket as required, and the transmission mechanisms can be controlled to synchronously act through the arranged joint control mechanism; according to the reinforcing steel bar clamping device, the threaded seats can be controlled to rotate synchronously, so that the guide rods can drive the corresponding reinforcing steel bar clamping pieces to stretch o