Bailey Prefabricated Steel Bridge/small Steel Prefabricated Bridge

Reputation of Jiangsu Zhonghai Bridge Equipment Co., Ltd. in China

Jiangsu Zhonghai Bridge Equipment Co., Ltd. (hereinafter referred to as "Zhonghai Bridge") enjoys a high reputation in the field of domestic bridge equipment manufacturing. With its technological innovation, high-quality products and extensive application cases, it has won high recognition in the market.

Technological Innovation and Quality Control
Zhonghai Bridge is the first company in China to achieve fully automatic welding of Bailey bridges. The company introduces advanced automatic welding robot technology to ensure that the connection of each welding part is accurate and correct, and the welding accuracy is controlled within 0.3 mm. All major welds must pass ultrasonic flaw detection, and each batch of products must undergo strict inspection to ensure that they fully meet the welding standards. This strict control of quality makes Zhonghai Bridge's products stand out in the industry.

Product Standards and Certification
Zhonghai Bridge's products not only meet domestic standards, but also pass international certification. The company successfully passed the ISO9001:2000 international quality system certification and was awarded the honorary title of quality system management demonstration unit by the China Quality Observation Station. In addition, the company has successfully applied to the State Intellectual Property Office for the invention patent of the production process of prefabricated highway steel bridges and the utility model patent of its products.

Extensive Application and Cooperation
The core product of China Ocean Bridge, the prefabricated highway steel bridge (Bailey bridge), is widely used in domestic and foreign infrastructure construction, national defense preparedness, emergency rescue and other fields. The company has successfully cooperated with many well-known enterprises and units, including the Maldives Steel Bridge of CCCC Second Navigation Bureau, the Shenzhen-Zhongshan Expressway of CCCC Second Highway Bureau, the China Construction Hangzhou Expo Center, and the new Sichuan-Tibet Railway of China Railway 11th Bureau. These successful cooperation cases fully demonstrate the professional strength and profound experience of China Ocean Bridge in the field of bridge manufacturing and engineering construction.

Market Performance and Growth
In recent years, China Ocean Bridge has performed very well in the market. In 2022, the company's annual output value was only 30 million yuan, and it exceeded 150 million yuan in 2024, a 5-fold increase. The company also plans to increase the proportion of foreign trade business to 50% in the future to further expand the international market.

Social Responsibility and Honor
China Ocean Bridge has not only made remarkable achievements in technological innovation and market performance, but also actively fulfilled its social responsibilities. The company has participated in a number of social welfare activities, such as the "Anti-fraud and Anti-rumor Enterprise" publicity campaign, which has enhanced employees' legal awareness and social responsibility.

In summary, Jiangsu Zhonghai Bridge Equipment Co., Ltd. has established a good reputation in the field of domestic bridge equipment manufacturing with its technological innovation, high-quality products, extensive application cases and good market performance. The company has not only achieved remarkable achievements in the domestic market, but also demonstrated the strength of Chinese standards and Chinese manufacturing in the international market.

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