Process method for assembling high-speed rail bridge sections

The invention provides a process method for assembling high-speed rail bridge sections. A large-span bridge fabrication machine is used for splicing high-speed rail bridge sections, and a high-speed rail bridge is divided into multiple sections of precast beams. The process method comprises the following steps: a presetting step: dividing a section of precast beam to be erected into multiple sections according to a preset length in the extending direction of the bridge, and respectively carrying out prefabricated construction to form multiple section beams with preset lengths; a splicing step:splicing the large-span bridge fabrication machine on the erected bridge, and dragging the large-span bridge fabrication machine to the erection position of the precast beam; transporting a pluralityof segmental beams to the tail part of the large-span bridge fabrication machine, hoisting the plurality of segmental beams to a preset position by using the large-span bridge fabrication machine, and splicing the segmental b