Introduction to the Assembly and Dismantling of Bailey Steel Bridges

Bailey panels have characteristics such as simple structure, convenient transportation, quick installation, large load capacity, good interchangeability, and strong adaptability. The '321' steel bridge was developed based on national defense, originating from the existing truss bridge in the UK, and adapted to China's national conditions and practical situations to create a rapidly assembled bridge.

It was formed and produced in 1965 and has been widely developed in China. It is widely used for dual-lane combat readiness, traffic engineering, and municipal water conservancy projects, and is well-assembled in Z country. This utility model has a simple structure, convenient transportation, quick installation, large load capacity, good interchangeability, and strong adaptability.

Bailey panels can be used for highway bridges, assembling gantry cranes, guide beams, bridge erecting machines, and hanging baskets. The assembled gantry frame and assembled highway steel bridge components can adjust their span and column height to adapt to different construction sites. They are widely used in highway, railway, municipal, construction, and water conservancy engineering, as well as for hoisting and transporting prefabricated components in bridge construction prefabrication yards, bridge piers, and transportation beams for on-site construction operations.

Bailey panels are welded from upper and lower chord rods, vertical rods, and diagonal rods. The ends of the upper and lower chord rods have male and female joints, and the truss connects with pin holes. The Bailey chord is composed of two 10# channel steels (back-to-back). There are several steel plates with round holes on the lower chord rod, and both the upper and lower chord rods have reinforced chord rods and double trusses.

There are bolt holes, with four bolt holes on the upper chord for connecting the support frame. The two middle holes are used to connect two or more rows of trusses at the same node. The two end holes are for connecting different parts. When multiple rows of sleeves are used as beams or columns, the connection points of the upper and lower Bailey panels must be reinforced with support frames.

Currently, there are many bridges and some elevated bridges in buildings, but when constructing these structures, it is important to consider how to build them better and more quickly. What should be done? At this time, the emergence of Bailey panel steel bridges becomes even more important.

There is a lot of knowledge about Bailey panel steel bridges. Due to their simple structure, convenient transportation, quick assembly, large load capacity, good interchangeability, and strong applicability, Bailey panel steel bridges improve truss height and load capacity, while Bailey pins enhance stability, extend fatigue life, and improve reliability.

The wind-resistant tie rods have elastic screws that can adjust the lever length. The spiral buckle has a length indicator block. When the screw reaches the end of the lever and contacts the length indicator block, the lever length is correct. To prevent the lever from loosening, a locking nut is installed on one end of the screw. Each truss is equipped with two wind-resistant rods to withstand lateral winds perpendicular to the bridge.

Applying Bailey panels in various aspects of industrial production and life plays a very important role in life and work, serving as the driving force for technological development. However, most metals can be corroded and damaged to a certain extent under certain conditions, even failing completely. The losses caused by metal corrosion are enormous.