The Type 200 bailey bridge and the Type 321 bailey bridge are a detachable and quickly erected bridge system. It is based on the British Compact-100 Bailey Bridge. The whole bridge is welded from high tensile strength steel. The main beam is a lightweight composite plate, and the panels are connected by panel connecting pins.

The conversion between parts is easy, and they are very light. Easy to assemble or disassemble and transport. It can also be assembled into different forms of plate Bridges according to its span length and transportation requirements. Therefore, as a more developed and secure emergency transport bridge, it has been widely used.

ALLOWABLE STRESS OF PANEL

Material yield strength of panel σS=345MPa

Material allowable stress [σ]=0.8×σS=276 MPa

Allowable bearing stress [N]= [σ]×F×φ=276×2548×0.751=528kN=54t

Stability factor of chord SSφSS=0.751；DS φDS=0.897

Allowable moment of panel [M]= [N]×h=528×2.134=1127kN·m=115t·m

Bailey Bridge is a standard bridge equipment, adopted extensively and the most popular in the world.

• Heavy loading capacity
• Great stability
• Long fatigue life
• Light weight
• Low cost
• Easy and fast erection

• Possessing the features of simple structure
• Convenient transport, speedy erection
• Easy disassembling
• Heavy loading capacity
• Great stability and long fatigue life

• High strength and big stiffness, relative to the concrete bridge can be reduced trabecular high and self-respect
• Due to the steel isotropic, quality of a material is uniform and modulus of elasticity, that make steel bridge in the working condition and calculation compared with the assumption
• Bailey bridge generally prefabricated in factory, site assembled by pins and bolts; the construction period is short, processing convenient and not affected by seasonal effect
• Bailey bridge is suitable for industrialized manufacture and very convenient to transport
• Bailey bridge is easy to repair and replace, long lifetime, material can be recycled

The compact 100 Bailey bridge (HZCB100) is a steel truss bridge that can be used as a temporary bridge or a semi-permanent bridge. Due to the modular design of the compact 100 Bailey bridge, the components have good interchangeability, reusable, simple structure, convenient transportation, and rapid erection period. It is widely used in various construction trestle bridges, suspension bridges, construction platforms, and cast-in-place construction formwork support, large tonnage gantry crane, bridge erecting machines, etc.

Beam bridge, arch bridge, rigid frame bridge, cable-stayed bridge, suspension bridge. passenger foot-bridge

Temporary Bridges, Emergency Bridges and Fixed Bridges.

Using the bridge equipment, the suspension bridges of varied span can be erected.

The bridge has the advantages of few components, light weight and low cost.

Bailey Bridge requires no special tools or heavy equipment for construction, the bridge elements are small enough to be carried in, and the bridge is strong enough to carry. It is considered a great example of military engineering.