The invention discloses a prefabricated
box girder prestress advanced positioning device, the prefabricated
box girder prestress advanced positioning device comprises a corrugated
pipe positioning ribwelding positioner, a web
stirrup classifying storage support and a bottom web plate
steel bar binding positioner, a
steel bar positioning pin is arranged on the base steel plate according to the coordinates of the corrugated
pipe positioning rib,
welding the machined corrugated
pipe positioning ribs on the web
stirrup, the corrugated pipe positioning ribs are classified and stored on a profile steel support according to the numbers, the bottom web plate
steel bar is installed and positioned on the bottom web plate steel bar binding positioner, the corresponding corrugated pipe coordinates can be checked in the installation process, and the installation position of the corrugated pipe locating rib is ensured. When the invention is used, after
welding of the corrugated pipe positioning ribis completed, the corrugated pipe positioning ribs are stored in a classified mode on the
stirrup storage support according to corresponding serial numbers, the web stirrup is installed on the binding positioner, the operation personnel sequentially install the web stirrup which are welded with the positioning ribs in advance according to the corresponding serial numbers,
machining, positioning and installation of steel bars in the whole process form digitalization, modularization and
batch production and line production, the installation efficiency, and precision are remarkably improved.