Application of Jack in Bridge Steel Jacking

The General Construction Works Are Carried out from Top to Bottom, but the Upper Part of the Bridge is Built First, and then the Supporting Parts Such As Piers Are Built. Therefore, Before the Construction of Piers, the Support Work Needs to Be Carried out with the Help of Jacks. Screw Jacks Are Equipped with Self-locking Devices, Which Can Support Heavy Objects for a Long Time and Prevent the Risk of Heavy Objects Falling. Therefore, the Bridge Jack Plays an Important Role in the Bridge Erection Project.