Project Background
This case involves the renovation of the expansion joint system on a river-crossing bridge. The original design used steel plates combined with rubber seals, which posed several issues, including excessive weight, susceptibility to corrosion, and high maintenance difficulty.
To solve these problems, the project team selected a custom aluminum profile solution for the cover plates and guide rail components of the expansion joint system.
Key Advantages of Aluminum Profiles
1. Lightweight with High Strength
Aluminum has a density about one-third that of steel, significantly reducing the load on the bridge deck while maintaining excellent structural strength and rigidity.
2. Excellent Corrosion Resistance
After surface treatment such as anodizing or powder coating, aluminum profiles offer strong resistance to oxidation, salt spray, and acid/alkaline environments—making them ideal for outdoor infrastructure use.
3. Easy Fabrication and Installation
Aluminum profiles can be precisely cut, drilled, and assembled based on project requirements. Combined with rubber seals and bolt anchoring systems, installation is fast and efficient, with low long-term maintenance costs.
4. Aesthetic Finish and Long Service Life
With stable color and strong surface durability after finishing, aluminum profiles contribute to both the appearance and the longevity of the expansion joint structure.
On-site Installation
For this project, the aluminum profiles were extruded into standard cavity shapes that fit tightly with rubber expansion strips. On-site installation was completed using bolt anchoring and groove slot connections, ensuring a high-strength and well-sealed final structure.
Client Feedback
After delivery and installation, the client reported excellent performance. The aluminum solution successfully addressed the corrosion problems of the previous structure while improving construction efficiency and reducing long-term maintenance costs.
Conclusion
As infrastructure maintenance and upgrade needs continue to grow, aluminum profiles are becoming increasingly popular in municipal engineering applications. We offer custom design, technical support, and mass production services tailored to bridge expansion joint systems and other structural projects.
If you need drawings, samples, or technical consultation, feel free to contact our team—we are ready to support your next project.
