Temporary Steel Trestle Bridge For Fast Cross-Sea Bridge Construction S355/ S460/Gr 55c/Gr350/Gr50/Gr65/GB355/460

Introduction of Bailey Type Trestle Bridge 

The Bailey trestle bridge,also known as a temporary access bridge or a trestle bridge, is a structure built to provide access for construction activities. It is mainly used during the construction of large - scale infrastructure projects such as bridges, ports, and dams. For example, when building a long - span sea - crossing bridge, the trestle bridge allows construction vehicles and equipment to transport materials and workers to the construction site over water or difficult terrains.

Advatages of Bailey Type Trestle Bridge 

High Strength and Load - bearing Capacity

Trestle bridges are designed with a robust structure. The use of vertical piles and horizontal beams/trusses provides excellent load - bearing capacity. They can support heavy construction equipment such as cranes, bulldozers, and large - tonnage trucks.

Versatility and Adaptability

Trestle bridges can be constructed in various environments. They are suitable for crossing water bodies like rivers, lakes, and even inshore areas of the sea. The height of the bridge can be adjusted according to the water level and the requirements of flood - proofing.

Applications of Bailey Type Trestle Bridge 

Facilitating Loading and Unloading during Construction

The trestle bridge can also serve as a temporary loading and unloading platform. Barges and small ships can bring construction materials to the construction site and unload them directly onto the trestle bridge. From there, the materials can be further transported to the exact construction locations within the port area.

Cross - Valley or River Access

For the construction of dams and other hydraulic structures that are often located in valleys or across rivers, a trestle bridge is necessary. It provides access for transporting earth - moving equipment to excavate the foundation of the dam and to transport the fill materials such as rocks and soil for the dam body.

In the case of a hydro - electric power plant construction, the trestle bridge allows for the transportation of heavy turbine components and generators to the powerhouse site. It also provides access for workers to install penstocks and other water - conveyance systems.

Temporary Support for Heavy Equipment Installation

When installing heavy industrial equipment such as large - scale reactors, boilers, or industrial furnaces, the trestle bridge can serve as a support structure for lifting and positioning the equipment. It can bear the weight of the lifting cranes and the equipment during the installation process.

Features of Bailey Type Trestle Bridge 

Adaptability to Different Terrains and Environments

These bridges can be adapted to various terrains and environments. They can be built over water (rivers, lakes, seas), across valleys, or on soft or uneven ground. In water - crossing applications, the height of the bridge can be adjusted according to the water level and flood - prone characteristics of the area. In areas with soft soil, the piles can be driven deeper to reach more stable soil layers. Trestle bridges can also be designed to withstand different environmental conditions such as corrosion - prone coastal areas (by using anti - corrosion coatings on steel components) or areas with extreme temperatures.

Good Load - Bearing Capacity

Trestle bridges are designed to bear heavy loads. The combination of strong vertical supports (piles) and well - designed horizontal members (beams and trusses) enables them to support the weight of heavy vehicles, construction machinery, and large - volume materials. The load - bearing capacity can be adjusted during the design phase according to the specific requirements of the project. For example, a trestle bridge in a port can be designed to support the weight of container cranes and the heavy containers they handle.