Arch rib section positioning device for tied-arch bridge

The utility model relates to the technical field of buildings, and discloses a tied-arch bridge arch rib section positioning device which comprises a base and supporting legs at the bottom of the base, rubber pads are fixedly connected to the bottoms of the supporting legs, a jack is fixedly connected to the top of the base, a positioning plate is fixedly connected to the top of the jack, and a positioning plate is fixedly connected to the top of the positioning plate. A positioning groove is formed in the top of the positioning plate, a protective pad is arranged on the inner surface of the positioning groove, and an arch rib section is in lap joint with the inner surface of the positioning groove. According to the device, the hydraulic rod extends in the horizontal direction through the hydraulic cylinder, so that the hydraulic rod abuts against the swing rod, and then the swing rod swings at the top of the peripheral sleeve and is in linkage with the abutting rod to move till the limiting arc plates abut a