Galvanized Quality Assurance Bailey Bridge / Black Metal Pedestrian Bridge

Used Bailey Bridge For Sale/quality Assurance Bailey Bridge

Bailey steel bridges can be built quickly in emergency situations, and the speed depends on the span, complexity and on-site construction conditions of the bridge. The following is a reference for the construction speed in different situations:

1. **Shorter single-layer Bailey bridge**: Under ideal conditions, a shorter single-layer Bailey bridge (such as a span of about 10 meters) can usually be built in **3 to 4 hours**. This rapid construction capability makes it extremely efficient in emergency rescue, and can quickly restore traffic and ensure the passage of rescue materials and personnel.

2. **Medium span bridge**: For Bailey bridges with medium spans (such as about 20 meters), the construction time is generally around **6 to 8 hours**. In practical applications, such as in the emergency repair of the Qinghai-Tibet Railway construction road, the construction speed of Bailey bridges also reflects its efficiency. It took only 4 days to successfully build two long-span temporary bridges.

3. **Complex or long-span bridges**: For more complex or long-span Bailey bridges, the construction time will increase accordingly. For example, during World War II, British engineers built the longest Bailey bridge (span 1,051 feet) in Italy, which took about **5 days** to complete. However, this extreme situation is relatively rare and is affected by many factors, including the construction environment, the number of personnel, and the condition of the equipment.

The rapid construction capability of Bailey steel bridges is mainly due to their modular design. All parts can be prefabricated in the factory and only simple assembly is required on site. In addition, its components are lightweight and can be quickly installed without heavy equipment. In emergency situations, such as road repairs after natural disasters, Bailey steel bridges can be put into use quickly, buying valuable time for rescue work.

Specifications:

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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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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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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