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The China Shipbuilding Beihai Shipyard’s Section-Construction Capacity Enhancement Project Has Been Successfully Topped Out.
Release Date:
2026-05-14 08:14
Source:
On May 12, with the final roof‑truss unit precisely positioned, the expansion project of the curved‑section fabrication workshop—part of China Shipbuilding Group’s Qingdao Beihai Shipbuilding Co., Ltd. initiative to enhance segment‑construction capabilities and implement intelligent upgrades—was successfully topped out.
The project is located in Qingdao, Shandong Province. To meet the production and development needs of the plant, a two‑bay extension has been constructed on the south side of the existing curved‑section workshop, with a total width of 90 meters and a longitudinal length of 240 meters, adding 22,794.32 square meters of floor space. Upon completion, the project will effectively address capacity gaps and enhance the plant’s manufacturing capabilities, leading to a significant improvement in both production capacity and operational efficiency.
During the project’s construction, numerous technical challenges were encountered; however, through meticulous planning and precise execution, the project team successfully overcame each one.
I. Fabrication and Installation of Complex Steel Structures
Faced with tight fabrication timelines and heavy workloads for steel columns, the team implemented efficient production scheduling to ensure timely delivery of components. At the same time, to address the logistical challenges of transporting ultra-wide and ultra‑tall members, they meticulously planned routes and optimized shipment logistics. On site, a 110‑ton crawler crane was used for segmented lifting and high‑altitude splicing, with strict control over installation accuracy. In addition, in close alignment with the coastal region’s strong winds and high humidity, rigorous welding protection measures were developed and rigorously enforced, guaranteeing first‑time‑pass weld quality.
II. Integral Lifting of Large-Span Space Frames and High-Altitude Erection by Loose Assembly
For the large‑span space trusses in Blocks 1 and 2, a “ground assembly plus full‑span lifting” approach was adopted: the trusses were first assembled on the ground, then lifted into place as a single unit using a 400‑ton truck crane to join the north–south spans. Subsequently, the roof truss system was progressively erected through an overhead loose‑assembly method. This scheme placed extremely stringent demands on assembly accuracy, hoisting point layout, and synchronized control, fully demonstrating the project team’s technical integration and collaborative capabilities.
III. Construction of Color-Coated Steel Sheets for Large-Span Roofs
During the installation of large‑span color‑steel roofing panels, a lift‑type press‑forming machine is used to deliver the panels directly to the roof, enabling on‑site forming and simultaneous installation as they are conveyed. In the face of numerous installation steps and intricate interconnections among processes, the project team rigorously controlled panel dimensions and waterproofing details, thereby effectively ensuring the overall quality and long‑term durability of the roofing system.
Going forward, the project will fully advance the installation of the roof envelope system, roof panels, and wall panels, while also completing the demolition of the existing factory buildings, thereby laying the groundwork for a smooth transition between the old and new plant areas and for an overall increase in production capacity. The project team will continue to leverage its professional expertise, rigorously manage construction quality and safety, ensure efficient coordination and steady progress in subsequent phases, and help Qingdao Beihai Shipbuilding achieve its goals of capacity upgrading and intelligent transformation at an early date.
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Email:dadi@cnzjdd.com
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