The invention discloses a hoop type tool suspender device for changing a steel
pipe truss concrete
arch bridge suspender. The device comprises an upper cross beam, a tensioning-end anchorage, upper and lower temporary ropes, a conversion beam, a fixing-end anchorage, a lower
joist and a hoop type arch crown anchoring antiskid
system consisting of a bolt, a lifting belt, an anchoring hoop, a leveling steel box, an upper cross beam, an antiskid
rope and an antiskid hoop, wherein one end of the anchoring hoop is anchored on a steel
pipe truss arch ring by the bolt and the lifting belt through a winding way; one end of the antiskid
rope is fixedly connected with the bottom of the anchoring hoop, and the other end is fixedly connected with the bottom of the antiskid hoop; and the antiskid hoop and the anchoring hoop are connected through a steel strand or a rigid pull rod. When the device is used for changing the suspender, with the hoop type anchoring antiskid
system arranged on the arch, the upper temporary
rope is connected with a bridge floor conversion beam, the lower
joist is arranged below the lifting rod cross beam, the lower temporary rope is connected with the bridge floor conversion beam, and a jack on the bridge floor conversion beam is tensioned to realize conversion of the suspender force; and moreover, the structure is simple, and the manufacturing and construction cost is low.