Introduction to the bridge: The bridge has created four firsts in the world, namely: the main span of the bridge is 1176 meters, and the suspension bridge across the canyon is the first in the world; it is the first time to adopt a structural design scheme in which towers and beams are completely separated, which is the first in the world; The "rail cable sliding method" is used to erect steel truss beams, which is the first in the world; the rock anchor sling structure is used for the first time, and carbon fiber is used as prestressed reinforcement, which is the first in the world.