Steel Girder Bridge Introduction
Here's a clear comparison of steel girder bridge types and their key differences:
Load Capacity:
Rolled I-beams: Simplest, for light loads
Plate girders: Customizable for heavy rail/road loads
Box girders: Best for combined bending+torsion (e.g., curved bridges)
Span Capability:
Short (<30m): Rolled beams
Medium (30-100m): Plate/box girders
Long (>100m): Box girders dominate
Fabrication Complexity:
Rolled beams: Ready-to-use
Plate girders: Field welding/bolting required
Box girders: Precision welding of closed sections
Economic Factors:
Rolled beams: Cheapest upfront
Box girders: Higher initial cost but lower life-cycle maintenance
Aerodynamics:
Open I-girders: Prone to wind vibrations
Closed box sections: Better for high-wind areas
Variable Depth Girders: Deeper at supports (optimizes material usage)
Launching Nose Girders: Tapered front for incremental construction
Orthotropic Decks: Integrated steel decking (common in box girders)
Highway Overpass: Plate girder (cost-effective for 40-60m spans)
Mountainous Terrain: Box girder (handles curves and torsion)
Urban Aesthetics: Tub girder (sleek appearance)
Railway Bridge: Heavy plate girder (fatigue-resistant details)
Here's a clear comparison of steel girder bridge types and their key differences:
Load Capacity:
Rolled I-beams: Simplest, for light loads
Plate girders: Customizable for heavy rail/road loads
Box girders: Best for combined bending+torsion (e.g., curved bridges)
Span Capability:
Short (<30m): Rolled beams
Medium (30-100m): Plate/box girders
Long (>100m): Box girders dominate
Fabrication Complexity:
Rolled beams: Ready-to-use
Plate girders: Field welding/bolting required
Box girders: Precision welding of closed sections
Economic Factors:
Rolled beams: Cheapest upfront
Box girders: Higher initial cost but lower life-cycle maintenance
Aerodynamics:
Open I-girders: Prone to wind vibrations
Closed box sections: Better for high-wind areas
Variable Depth Girders: Deeper at supports (optimizes material usage)
Launching Nose Girders: Tapered front for incremental construction
Orthotropic Decks: Integrated steel decking (common in box girders)
Highway Overpass: Plate girder (cost-effective for 40-60m spans)
Mountainous Terrain: Box girder (handles curves and torsion)
Urban Aesthetics: Tub girder (sleek appearance)
Railway Bridge: Heavy plate girder (fatigue-resistant details)
Q: How can I get a quote for my project?
A: You can contact me anytime, via WeChat, WhatsApp, Email, or phone. I will get back to you as soon as possible.
Email: jack@xingyasteel.com
Phone: +86 17305413116
WeChat: 17305413116
WhatsApp: +86 17305413116
Q: How long can I get the price?
A: If possible, please provide project CAD drawings, pictures or specific requirements. We usually quote within 6 hours. If you want to get a quote as soon as possible, please let us know via WeChat, WhatsApp or email so that we can prioritize your inquiry.
Q: Can we visit your factory?
A: Of course, we welcome you to visit our factory or production line on site to understand our strength and quality. We will arrange a professional team to serve you. You just need to send your itinerary and leave the rest to us.
Q: Do you provide customized product services?
A: Of course, our professional R&D team can design and produce the products you need according to your specifications and drawings. For example: special size, special control, OEM, etc.
Q: Where is the loading port?
A: Normally, we ship from Tianjin Port, Qingdao Port and Shanghai Port. Of course, we can also accept the port you specify.