This is China’s first rotary adjustment lifting, first of pre-stressed cap beam lifting, and the highest lifted height of the double crane frame girder in the alpine area were successful. The Harbin East Third Ring Highway Project, which has set a number of records, was officially opened to traffic. In line with the principles of saving project funds, promoting green development and meeting the linear requirements of the overall planning of the project, the headquarters of the project construction adopted the overall synchronous lifting design to lift the original old bridge, to allow it connect with the new bridge.
After day after day’s work and talking, with rich experience in bridge synchronous lifting, the company decided to adopt a suitable method by using synchronous system and hydraulic cylinders, and finally meet the construction requirements.
The team decided to adopt rotary adjustment lifting, at the beginning, the team faced with a series of technical challenges, with the height of 6.897 meters, the change of the force of the span and beam plate, the overall lifting weight of the pier column, cap beam and bridge deck system are reaching 32,000 tons, and the overall implementation difficulty was not to be second in the country. However, Canete took the challenge and set up a technical public relations team, using its own professional technical advantages and rich industry experience over years, and finally customized a multi-point synchronous lifting system to meet with the project specifications, a system can adapt to the angle changes in different lifting heights and carry out real-time control of the whole digital process. To make sure the safety of on-site construction and the smooth development of lifting tasks.
The project selected Jiangsu Canete’s four-point frequency conversion synchronous lifting hydraulic system, as well as 230 sets of 320T large-tonnage hydraulic cylinders with stroke of 140mm. It meets the technical requirements of on-site multi-span joint roofing, transverse and longitudinal displacement control, proportional synchronous movement, finally it allows the possibility of realizing multi-point synchronous control of the bridges.
Post time: Nov-01-2023