Jiangsu Zhonghai Bridge Equipment Co.,LTD
| Payment Terms | L/C,D/P,T/T |
| Supply Ability | 60000ton/year |
| Delivery Time | 8-10 work days |
| Packaging Details | Naked |
| Standard | ASTM,GB,BS,BV |
| Packing | Packing in Containers or Bulk |
| OEM | Specialized |
| Dimensions | Standard or Customized |
| Type | Truss Bridge |
| Application | Permanent Steel Structure Bridge |
| Design | Structural |
| Usage | Transportation |
| Brand Name | Zhonghai Bailey Bridge |
| Model Number | CB200/CB321 |
| Certification | IS09001, CE |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,D/P,T/T | Supply Ability | 60000ton/year |
| Delivery Time | 8-10 work days | Packaging Details | Naked |
| Standard | ASTM,GB,BS,BV | Packing | Packing in Containers or Bulk |
| OEM | Specialized | Dimensions | Standard or Customized |
| Type | Truss Bridge | Application | Permanent Steel Structure Bridge |
| Design | Structural | Usage | Transportation |
| Brand Name | Zhonghai Bailey Bridge | Model Number | CB200/CB321 |
| Certification | IS09001, CE | Place of Origin | China |
| High Light | military steel bridges ，various span temporary walking bridge ，military temporary walking bridge | ||
Small Military Steel Bridges/various Span Steel Bridge
One notable example of a bridge that has been in use for a long time with galvanized steel is the **Stearns Bayou Bridge** in Ottawa County, Michigan. Constructed in 1966, this bridge was the first hot-dip galvanized steel bridge in the United States. The bridge has stood the test of time, demonstrating the durability and low maintenance requirements of galvanized steel.
Stearns Bayou Bridge
- **Construction Year**: 1966
- **Length**: 420 feet (128 meters)
- **Location**: Ottawa County, Michigan, USA
- **Design**: The bridge consists of eight spans, with two 60-foot and six 50-foot sections of 30-inch, 108-pound rolled steel beams.
- **Galvanizing**: All fasteners, handrails, diaphragms, shear connectors, and fittings were hot-dip galvanized.
Performance Over Time
- **Initial Inspection (1991)**: After 25 years, the bridge showed no signs of corrosion or staining. The galvanized coating was particularly effective at splice joints and bolted connections.
- **Coating Thickness**: In 1991, the main structural beams had an average zinc coating thickness of 6.2 mils, with a minimum of 4 mils and a maximum of 10.5 mils.
- **Long-term Projections**: Based on the 1991 inspection, estimates suggested that the bridge beams would not need maintenance for another 90 years.
- **Recent Inspection (2017)**: After 51 years, the bridge still showed no signs of corrosion on the superstructure beams or underside. The galvanized steel maintained a spangled appearance, indicating minimal wear.
Impact and Legacy
The Stearns Bayou Bridge has set a precedent for the use of galvanized steel in bridge construction. Its performance has influenced subsequent projects, such as the reconstruction of the nearby Fruitport Road Bridge in 2008, which also utilized hot-dip galvanizing. The bridge's longevity and maintenance-free service highlight the economic and environmental benefits of using galvanized steel in infrastructure projects.
The Stearns Bayou Bridge stands as a testament to the durability and sustainability of hot-dip galvanized steel, proving its effectiveness in providing long-term corrosion protection with minimal maintenance.
Specifications:
| 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 |
| 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 | |
| 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 |
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
Company Details
Business Type:
Manufacturer
Year Established:
2014
Total Annual:
20753202.90-27670940.00
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Introduction to Jiangsu Zhonghai Bridge Equipment Co., Ltd. Jiangsu Zhonghai Bridge Equipment Co., Ltd., established in 2010, is a high-tech enterprise specializing in the research, development, manufacturing, and sales of bridge equipment. With a registered capital of 55 million yuan, the company ... Introduction to Jiangsu Zhonghai Bridge Equipment Co., Ltd. Jiangsu Zhonghai Bridge Equipment Co., Ltd., established in 2010, is a high-tech enterprise specializing in the research, development, manufacturing, and sales of bridge equipment. With a registered capital of 55 million yuan, the company ...
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