Heavy-Duty Girder Carrier: How Pro Teams Transport Precast Bridge Girders For Highway Construction

Описание: Heavy-Duty Girder Carrier: How Professional Engineering Teams Transport Precast Bridge Girders For Highway Construction

This video showcases a critical heavy transport operation at a professional bridge construction site in China, carried out by an experienced bridge engineering team.

The core of the video is a massive precast steel-concrete box girder — the main load-bearing component for a highway or high-speed railway bridge — being transported by a specialized super heavy-duty girder carrier. This custom-built transporter is fitted with up to 128 heavy-load tires, designed exclusively for moving ultra-heavy bridge girders that can weigh hundreds of tons.

Its multi-axle design is the key to its incredible performance: each axle is equipped with an independent hydraulic suspension and steering system. This distributes the girder’s enormous weight evenly across all tires, ensuring stable travel even on the uneven, muddy temporary construction roadbed, while also allowing the vehicle to flexibly adjust its height and driving direction for precise positioning.

Unlike cast-in-place bridge building, this prefabricated construction method manufactures the entire bridge girder in a controlled precast yard first, then transports it to the site for installation. This greatly improves construction efficiency, shortens on-site work time, and ensures consistent, high-quality structural performance of the bridge.

On-site, all workers wear standard safety helmets and high-visibility vests, strictly following safety protocols. Clear warning signs on the transporter remind all personnel and vehicles to keep a safe distance, as this ultra-heavy transport work requires extreme precision and uncompromising safety control at all times.