Temporary Emergency Bridge / Hot dipped Prefabricated Structural Steel Bridge

Steel Structure Emergency Bridge/prefabricated Structural Steel Bridge

Advantages of Type 450 Bailey Bridge in Earthquake Rescue

Type 450 Bailey Bridge has significant advantages in earthquake rescue, which makes it an ideal choice for dealing with earthquake disasters:

1. **Quick Construction**
Type 450 Bailey Bridge adopts modular design, and each component can be prefabricated in the factory and then transported to the construction site for rapid assembly. This method greatly shortens the construction period, allowing the Bailey Bridge to be built in a short time to ensure the rapid passage of rescue materials and personnel.

2. **High Load Capacity**
Type 450 Bailey Bridge is designed to carry heavy loads and can meet the needs of various vehicles with a crawler load of 500 kN and a tire load of 300 kN (axle pressure of 130 kN). This high load capacity makes it have important application value in projects that require the transportation of heavy equipment and materials.

3. **Strong Adaptability**
Type 450 Bailey Bridge can adapt to different terrain and environmental requirements, whether it is crossing rivers, canyons or other obstacles, it can provide a reliable solution. The flexibility of its design enables it to be adjusted according to actual needs to meet different engineering requirements.

4. **Temporary bridge solution**
In the event that an earthquake causes the destruction of an existing bridge or interruption of a road, the 450-type Bailey Bridge can be used as a temporary bridge. It can be quickly erected to ensure the continuity of traffic until the permanent bridge is repaired or rebuilt.

5. **International standard certification**
The 450-type Bailey Bridge has simultaneously applied for three sets of Chinese, American and European standard certifications, with the goal of further expanding the global market. This shows that its design and manufacturing meet high international standards and can meet the engineering needs of different countries and regions.

6. **Seismic performance**
The Bailey Bridge is designed with good seismic performance and can adapt to the complex terrain and environment after an earthquake. Its simple structure, strong adaptability, good interchangeability, easy disassembly and assembly, fast erection speed and large load capacity make it perform well in earthquake rescue.

7. **Reuse**
The components of the 450-type Bailey Bridge can be reused, reducing long-term engineering costs. This economy gives it a significant advantage in projects that require temporary or semi-permanent bridge solutions.

In summary, the 450-type Bailey Bridge has played an important role in earthquake rescue and provided strong support for rescue work due to its advantages such as rapid construction, high load-bearing capacity, strong adaptability, temporary bridge solution, international standard certification, seismic performance and economy.

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