Anchorage device for tensioning arch bridge sling

The invention relates to the technical field of arch bridge sling tensioning anchorage devices, in particular to an anchorage device for arch bridge sling tensioning, which comprises a first tensioning groove, a first anti-skid groove, a clamping piece, a stranded wire hole, a second anti-skid groove and a tensioning reinforcing piece, the bulletproof fixing device has the beneficial effects that a limiting block is jacked by a jacking spring to enter a limiting groove to limit a fixing rod, an anti-disengaging rod prevents the limiting block from disengaging from the jacking groove, and after the bulletproof fixing rod enters a bulletproof outer plate and a bulletproof inner plate, the bulletproof limiting block is pressed into the bulletproof limiting groove through an inclined face formed in the bulletproof limiting block, so that the bulletproof fixing rod enters the lower end of the bulletproof limiting block; the bulletproof limiting spring abuts against the bulletproof limiting block to limit the bulle