The steel truss bridge is a structural system between beams and arches. It is a structure in which a bent upper beam structure and a pressure-bearing lower column are integrated together. Due to the rigid connection between the beam and the column, the beam is unloaded due to the flexural rigidity of the column. The entire system is a compression-bending structure as well as a thrust structure.

According to the different position of the bridge floor, it is divided into:

• Upper bearing steel truss bridge where the bridge floor is located in the upper part of the main truss
• Lower bearing steel truss bridge where the bridge floor is located in the lower part of the main truss

Main girder: The main load-bearing structure that bears vertical loads. Composed of upper chord, lower chord and belly rod (divided into diagonal bar and vertical bar).

Bracing:

• Classification: longitudinal connection and horizontal connection
• Function: Connects the main truss to form a stable space structure
• Withstands transverse horizontal loads, wind, lateral rocking force and centrifugal force

Bridge deck system: Composed of longitudinal beam, beam and their connections. Force transmission: load → longitudinal beam → beam → main truss.

Bridge deck: The part for vehicles and pedestrians.

Triangular truss: Simple structure, easy to install and manufacture.

Diagonal bar truss: Many bar specifications and large internal force of the vertical rod.

K-shaped truss: Shear force borne by two diagonal rods, suitable for mounting and dismounting bridges.

Double-vented bar truss: Used for large spans, with short compression inclined rods favorable for buckling stability.

• Truss Configuration
• Versatile Span Lengths
• High Strength-to-Weight Ratio
• Sustainable Material (recyclable steel)
• Ease of Inspection and Maintenance

Used for urban bridges, highway viaducts, overpasses with small spans, medium and small span reinforced concrete, long span prestressed reinforced concrete, and various rigid frame structures.