Traditional Prefabricated Steel Bridge Steel Cable Suspension Bridge

Prefabricated Steel Bridge/steel Cable Suspension Bridge

The rapid deployment feature of Bailey bridges is a critical aspect of their design, allowing them to be assembled and installed quickly in various conditions. Here’s how this feature works:

Modular Design
Bailey bridges are composed of prefabricated steel components that can be easily transported and assembled on-site. The primary components include:
- **Panels**: These are the main load-bearing elements, designed to interlock and form a strong truss system.
- **Transoms**: These provide horizontal support, connecting the panels and distributing the load evenly.
- **Decking**: This forms the surface of the bridge, providing a stable path for vehicles and pedestrians.

Assembly Process
1. **Site Assessment**: Engineers first assess the terrain, river width, depth, and load requirements to determine the optimal bridge configuration.
2. **Transportation**: Prefabricated components are transported to the site using available vehicles or aircraft, making the process adaptable to remote or isolated areas.
3. **On-Site Assembly**: The modular design allows for quick assembly using simple pin connections. Panels are interlocked, transoms are installed, and decking is laid on top. This process can often be completed in a matter of hours or days.
4. **Final Inspection**: Once assembled, the bridge undergoes safety and structural integrity checks to ensure it can support the intended load.

Launching Mechanism
One unique feature of Bailey bridges is their ability to be launched from one side of a gap without requiring equipment or personnel on the far bank. The bridge is placed on rollers and pushed across the gap, with the roadbed and additional components installed after the bridge is in place.

Real-World Applications
This rapid deployment capability has been crucial in various scenarios:
- **Emergency Situations**: After natural disasters like earthquakes or floods, Bailey bridges can quickly restore access to affected areas, facilitating the delivery of aid and evacuation efforts.
- **Military Operations**: In combat zones, Bailey bridges enable rapid troop and supply movements, maintaining operational momentum.

Overall, the modular design and quick assembly process of Bailey bridges make them an invaluable solution for providing rapid connectivity in challenging environments.

Specifications:

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CB321(100) Truss Press Limited Table
No.	Lnternal Force	Structure Form
		Not Reinforced Model				Reinforced Model
		SS	DS	TS	DDR	SSR	DSR	TSR	DDR
321(100)	Standard Truss Moment(kN.m)	788.2	1576.4	2246.4	3265.4	1687.5	3375	4809.4	6750
321(100)	Standard Truss Shear (kN)	245.2	490.5	698.9	490.5	245.2	490.5	698.9	490.5
321 (100) Table of geometric characteristics of truss bridge(Half bridge)
Type No.	Geometric Characteristics	Structure Form
		Not Reinforced Model				Reinforced Model
		SS	DS	TS	DDR	SSR	DSR	TSR	DDR
321(100)	Section properties(cm3)	3578.5	7157.1	10735.6	14817.9	7699.1	15398.3	23097.4	30641.7
321(100)	Moment of inertia(cm4)	250497.2	500994.4	751491.6	2148588.8	577434.4	1154868.8	1732303.2	4596255.2

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CB200 Truss Press Limited Table
NO.	Internal Force	Structure Form
		Not Reinforced Model				Reinforced Model
		SS	DS	TS	QS	SSR	DSR	TSR	QSR
200	Standard Truss Moment(kN.m)	1034.3	2027.2	2978.8	3930.3	2165.4	4244.2	6236.4	8228.6
200	Standard Truss Shear (kN)	222.1	435.3	639.6	843.9	222.1	435.3	639.6	843.9
201	High Bending Truss Moment(kN.m)	1593.2	3122.8	4585.5	6054.3	3335.8	6538.2	9607.1	12676.1
202	High Bending Truss Shear(kN)	348	696	1044	1392	348	696	1044	1392
203	Shear Force of Super High Shear Truss(kN)	509.8	999.2	1468.2	1937.2	509.8	999.2	1468.2	1937.2

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CB200 Table of Geometric Characteristics of Truss Bridge(Half Bridge)
Structure	Geometric Characteristics
	Geometric Characteristics	Chord Area(cm2)	Section Properties(cm3)	Moment of Inertia(cm4)
ss	SS	25.48	5437	580174
	SSR	50.96	10875	1160348
DS	DS	50.96	10875	1160348
	DSR1	76.44	16312	1740522
	DSR2	101.92	21750	2320696
TS	TS	76.44	16312	1740522
	TSR2	127.4	27185	2900870
	TSR3	152.88	32625	3481044
QS	QS	101.92	21750	2320696
	QSR3	178.36	38059	4061218
	QSR4	203.84	43500	4641392

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Advantage

Possessing the features of simple structure,
convenient transport, speedy erection
easy disassembling,
heavy loading capacity,
great stability and long fatigue life
being capable of an alternative span, loading capacity