News & InsightsFeatured
2026年1月20日
Engineering for the Ocean: How to Select the Right Steel Formwork for Cross-Sea Bridges
The Challenge of the Marine Environment Cross-sea bridge projects represent the pinnacle of civil engineering, but they also present the harshest working conditions. High salinity, extreme wind loads
The Challenge of the Marine Environment
Cross-sea bridge projects represent the pinnacle of civil engineering, but they also present the harshest working conditions. High salinity, extreme wind loads, and unpredictable waves demand more than just standard equipment. For project managers and engineers, selecting the right steel formwork system is not just about shaping concrete—it’s about ensuring durability, safety, and efficiency amidst the elements.
Key Criteria for Selection
- Corrosion Resistance & Material Grade
In marine environments, the chloride ion penetration rate is the enemy. Hyson Industry recommends utilizing high-grade Q235 or Q345 steel with specialized surface treatments. Our manufacturing process in Nantong includes shot blasting and marine-grade epoxy coating to prevent rust contamination on the concrete surface, ensuring the longevity of the bridge structure.
- Structural Integrity Against Wind & Wave Loads
Unlike inland bridges, cross-sea formwork (especially for high piers and box girders) must withstand significant lateral pressure. At Hyson, we employ Finite Element Analysis (FEA) to simulate typhoon-level conditions. Our heavy-duty formwork features reinforced rib arrangements and high-strength bolts (Grade 8.8 or 10.9) to ensure zero deformation during pouring.
- Precision & Trial Assembly
Offshore logistics are costly. A misalignment of just a few millimeters can cause massive delays. This is why Hyson Industry enforces a strict Trial Assembly Policy before shipment. We use CNC machining to ensure joint precision, guaranteeing that segments fit perfectly on the barge or platform.
The Hyson Advantage: Proven in Major Projects
As a long-term strategic partner of CCCC and CRCC, Hyson Industry understands the rigorous standards of national-level infrastructure. Our experience with projects like the Sutong Bridge (Box Girder Formwork) and Taizhou Bridge has refined our capability to deliver large-scale customized solutions.
Design to Delivery: Integrated 3D design, fabrication, and on-site technical guidance.
Capacity: Equipped with 2,000-ton hydraulic presses and robotic welding arms for mass production consistency.
The success of a cross-sea bridge starts with the formwork design phase. Don't wait until construction begins. Engage with Hyson’s engineering team to optimize your formwork scheme for safety and cost-effectiveness.