Synchronous Lifting Project for the Old Bridge Reconstruction on Harbin East Third Ring Expressway
Publication date: 2022-09-24
  • Apps: Building
  • Used: Synchronous Bridge Jacking Equipment
Synchronous Lifting Project for the Old Bridge Reconstruction on Harbin East Third Ring Expressway
Synchronous Lifting Project for the Old Bridge Reconstruction on Harbin East Third Ring Expressway

In late September 2022, KET successfully completed the commissioning and delivery of the synchronous bridge lifting system for the reconstruction project of the old bridge on Harbin East Third Ring Expressway. This project involved the overall synchronous lifting of the bridge, reaching a maximum elevation height of 6.897 meters—the highest recorded bridge lifting height in the Harbin area.

During the lifting process, the project team faced several technical challenges, including controlling both lateral and longitudinal displacements, managing the complexity of nearly 7-meter-high jacking operations, adapting to changes in span and beam forces, and lifting the massive weight of the superstructure, including piers, caps, and the bridge deck. Leveraging its expertise and extensive industry experience, KET provided the most suitable intelligent synchronous lifting system to the jobsite, ensuring safe and efficient operations throughout the project.

Harbin East 3rd Ring Expressway Old Bridge Jacking Preparations
Harbin East 3rd Ring Expressway Old Bridge Jacking Preparations

The entire bridge adopts a simply supported to continuous prestressed concrete small box girder structure, with the deck divided into two sections, each 23 meters wide.

West section spans: 4×30m (simply supported to continuous small box girders) + 3×40m (small box girders, railway section) + 3×30m + 3×30m (simply supported to continuous small box girders)

East section spans: 4×30m + 4×30m (railway section) + 3×30m + 3×30m (all small box girders)

General Bridge Layout Plan for Jacking
General Bridge Layout Plan for Jacking

The bridge starts 400 meters north of Xianfeng Road, crosses Xianghua Street and a dedicated railway line, and ends at stake K40+812.5. The total length is 420 meters, including a 120-meter railway crossing from K40+512.5 to K40+632.5. The bridge is designed for City-A load class and complies with seismic intensity 7, completed in 2012.

Utilizing advanced computer control technology, KET has been dedicated to offering lifting, pushing, and jacking solutions, widely applied in multi-point synchronous lifting, jacking, sliding, hoisting, tensioning, asymmetric weighing of large components, spatial attitude adjustment, and intelligent transportation of heavy structures. The company delivers safe, efficient bridge synchronous lifting equipment and services for complex engineering demands.

Working Drawings for This Project :

Hydraulic Jack Layout Diagram
Hydraulic Jack Layout Diagram
Hydraulic Jack Layout Diagram
Hydraulic Jack Layout Diagram
Hydraulic Jack Layout Diagram
Hydraulic Jack Layout Diagram
Hydraulic Jack Layout Diagram
Hydraulic Jack Layout Diagram
Hydraulic Jack Installation On-Site
Hydraulic Jack Installation On-Site
PLC Synchronous Lifting System
PLC Synchronous Lifting System
Bridge Lifting Control Center
Bridge Lifting Control Center

Synchronous Bridge Lifting Equipment Specifications:

Synchronous Bridge Lifting Equipment
Synchronous Bridge Lifting Equipment

PLC Multi-Point Synchronous Lifting Hydraulic System

Model: KET-DBTB-48

System Pressure: 70 MPa

Rated Voltage: 380V 50Hz

Synchronous Accuracy: ±0.2 mm

System Power: 9 kW

Motor Power: 2.2 kW × 4

System Flow: 1.8 L/min × 4

Oil Tank Volume: 400 L

Double-Acting Outer Ring Mechanical Self-Locking Jack

Model: KET-CLLRS-300T-140

Working Pressure: 70 MPa

Load Capacity: 300 T

Body Height: 320 mm

Stroke: 140 mm