Successful lifting of the central steel roof at Long Thanh Airport Terminal: A remarkable milestone in project progress

The central steel roof, weighing over 5,300 tons, of the Long Thanh Airport terminal was successfully lifted, with workers and engineers continuing to ensure seamless integration with other project components. Experienced experts and engineers from the JAC-CONINCO joint venture continuously monitored and supported the process to ensure the roof lifting was executed with precision and safety.

In late April, thousands of engineers and workers were diligently working to accelerate the completion of the terminal’s steel roof. Once successfully lifted, the steel structure will be reinforced and connected to other project elements.

The central domed roof, weighing over 5,300 tons and spanning nearly 20,000 square meters with a curved design, creates a distinctive architectural highlight. This is considered one of the most critical and complex components of Phase 1.

To lift the thousands-of-ton structure, engineers utilized 56 specialized hydraulic jacks, each capable of handling loads from 40 to 330 tons. The structure was assembled from 256 connection points, adhering to stringent European standards.
The lifting method employed state-of-the-art global technology, representing one of the most advanced techniques in modern construction engineering. The central steel roof structure of the terminal is one of the most complex and challenging lifting modules in the history of construction and the largest of its kind for an airport passenger terminal worldwide.

The domed roof structure features a cantilever extending up to 41 meters, requiring absolute precision in assembly to ensure both safety and architectural aesthetics.
The engineering team and project management dedicated a year to researching, designing, and testing lifting solutions.

The trial lifting process was simulated using specialized software, combined with load monitoring and 3D scanning technology to ensure precise control. The management of connection dimensions, deformation tolerances, and thermal expansion of the steel structure was executed with absolute accuracy using specialized equipment. This ensured that when the module was lifted, the connections aligned perfectly with the previously installed structure, forming a seamless whole. The lifting process also utilized wind and deviation control devices to optimize construction.

Mr. Nguyen Luong Binh, Deputy General Director of the Consultant and Inspection Joint Stock Company of Construction Technology and Equipment, stated that the 5,300-ton steel roof was lifted to a height of over 15 meters under favorable weather conditions, with wind speeds not exceeding 48 km/h.
“When the roof reached the designated height, everyone on-site shook hands and embraced, celebrating the success after countless days and nights of effort. This is the most complex steel structure in Vietnam, requiring precise technology and coordination to lift a large spatial framework with numerous lifting points”, Mr. Binh shared.

The successful lifting of the central steel roof marks a significant step forward in the construction of the Long Thanh Airport passenger terminal. The completion of this component paves the way for subsequent tasks, such as installing mechanical and electrical systems, interior finishing, and other supporting systems.

Source: Vietnamnet.vn