What is segment assembly construction for launching crane?

Segment assembly construction is one of typical construction conditions for HZP1600 segmental assembly launching crane.

steel strands tension for precast girder

Segment assembly construction technology of the bridge is complete span segments suspension assembly. As feeding girders, segments are carried by girder carrier to designated position, and then lift them. Below are construction steps:

1.Carry segments to proper position

2.Segments suspension assembly

3.Last segments assembly

4.Initial positioning

5.Application of adhesive

6.Accurate positioning

7.Temporary tension

8.Add steel strand

steel strands tension for precast girder

9.Permanent pre-stress tensioning

10.Mud-jack, seal

11.Remove suspender

12.Longitudinal moving to cross span