Bridge Wind Barrier Project-Guangdong
The Rongjiang Grand Bridge in Guangdong Province is a major bridge infrastructure project designed to operate safely under complex bridge wind environments and long-term outdoor exposure conditions.
To optimize the bridge deck wind environment and improve vehicle operational safety, the project carried out dedicated wind engineering studies to determine the key aerodynamic parameters of the bridge wind barrier system, including barrier geometry, wind shielding performance, and spatial arrangement.
The project adopted a curved-slot wind barrier configuration with a wind shielding ratio of 54%. Based on the arrangement of the bridge tower guardrail columns, the final wind barrier layout was installed on one side of the bridge tower zone. The system incorporated progressive transition sections consisting of six-row, four-row, and two-row wind barrier arrangements beginning from the second anti-collision guardrail column adjacent to the bridge tower centerline.
Installation completed in December 2020. The project adopted a curved-slot wind barrier system, covering approximately 805.6 meters of bridge infrastructure.
Products
PC Wind Barrier
Sector
Bridge infrastructure
The Challenge
The Rongjiang Grand Bridge project presented demanding aerodynamic and structural engineering challenges due to bridge tower airflow interference, varying bridge deck wind conditions, and long-term outdoor environmental exposure.
To improve driving safety and aerodynamic stability around the bridge tower sections, the project required an optimized wind barrier configuration capable of reducing wind impact while maintaining smooth airflow transitions across different bridge zones.
The wind barrier system was specifically engineered to provide:
- Stable aerodynamic wind protection around bridge tower sections
- Optimized airflow management under varying bridge wind environments
- Progressive aerodynamic transition between different wind barrier regions
- Reliable structural stability under bridge wind loading conditions
- Long-term resistance to UV radiation, environmental aging, and atmospheric exposure
- High impact resistance and long-term operational durability
- Minimum service life of 20 years
- UV protective coating thickness not less than 70 μm
The project adopted a curved-slot polycarbonate (PC) wind barrier system with a wind shielding ratio of 54%, optimized for bridge aerodynamic performance and long-term infrastructure reliability.
Technical Features
Aerodynamic Wind Barrier Optimization – The project incorporated wind engineering analysis to determine the optimal wind shielding ratio, barrier geometry, and spatial arrangement for bridge deck wind control performance.
Progressive Wind Barrier Transition Design – The six-row, four-row, and two-row wind barrier configurations provided smooth aerodynamic transitions and improved airflow stability around the bridge tower influence zones.
Bridge Tower Wind Environment Management – The single-side bridge tower wind barrier arrangement was specifically optimized according to the structural guardrail column layout and local aerodynamic conditions.
Long-Term Environmental Durability – The polycarbonate wind barrier system delivered excellent resistance against UV exposure, atmospheric aging, and long-term outdoor environmental conditions.
Execution and Outcomes
The successful completion of the Rongjiang Grand Bridge Wind Barrier Project demonstrated the effectiveness of aerodynamically optimized polycarbonate wind barrier systems in improving bridge operational safety and airflow stability around bridge tower sections.
The project further validated the application of progressive wind barrier transition layouts and curved-slot PC wind barrier technology in modern bridge infrastructure operating under complex wind environments.