Painted Light Gray Steel Structure Bridge/multi-span Steel Bridge
Using galvanized steel in bridges offers several significant benefits that enhance durability, reduce maintenance, and promote sustainability:
1. **Durability and Longevity**
Galvanized steel provides excellent protection against rust and corrosion, leading to a longer lifespan compared to untreated steel. This results in lower maintenance costs over the life of the structure. For example, the Stearns Bayou Bridge in Ottawa County, Michigan, which was galvanized in 1966, remains in excellent condition with no signs of rusting.
2. **Low Maintenance**
Galvanized steel requires minimal maintenance due to its self-healing properties. The zinc coating can repair itself even if it gets corroded, and it rusts at a slower rate than unprotected steel. This reduces the need for frequent inspections and repairs, lowering overall lifecycle costs.
3. **Full Surface Protection**
The galvanizing process ensures that even hard-to-reach areas and sharp edges are protected. This comprehensive coverage helps maintain the structural integrity of the bridge.
4. **Sustainability**
Galvanized steel is environmentally friendly. Both zinc and steel are 100% recyclable, and the galvanizing process produces minimal waste. Additionally, the extended lifespan of galvanized steel reduces the need for frequent replacements, conserving resources and reducing waste.
5. **Economic Advantages**
While the initial cost of galvanized steel may be slightly higher than untreated steel, its long-term durability and low maintenance requirements lead to significant cost savings over time. The prevention of rust and corrosion not only avoids costly repairs but also prolongs the life of the structure.
6. **Versatility and Strength**
Galvanized steel retains the strength of steel while providing enhanced corrosion protection. This makes it suitable for structural applications where strength and durability are critical, such as in bridges. It can be easily formed, welded, and fabricated, allowing for flexibility in design and construction.
Conclusion
Galvanized steel is an ideal choice for bridge construction due to its durability, low maintenance requirements, sustainability, and economic benefits. It provides long-term protection against corrosion, ensuring that bridges remain functional and safe for decades with minimal intervention.
Specifications:
| 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 |
| 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 |
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
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Painted Light Gray Steel Structure Bridge / Multi Span Temporary Road Bridge Images
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