Stay cable steel strand penetrating and tensioning anchoring device and construction method

The invention relates to the technical field of cable-stayed bridge construction, and discloses a stay cable steel strand penetrating and tensioning anchoring device and a construction method.The stay cable steel strand penetrating and tensioning anchoring device comprises traction systems and a tensioning anchoring system, and the traction systems are installed on the two sides of a bridge tower, are connected with the bridge tower and a main beam and comprise fixed cableways, traction ropes and supporting plates; the tensioning anchoring system is installed on the main beam and comprises an anchorage device, a temporary tool anchor, a tensioning pedestal, a temporary anchor hole and a clamping piece. The traction system drags the steel strand to be conveyed between the main beam and the bridge tower through the supporting plate, and the cable penetrating efficiency and precision can be greatly improved through cooperation with the cable penetrating system. The pilot rod and the pilot cable can effectively a