This type of steel beam is widely used when standard off-the-shelf beams cannot meet specific load capacity, span length, or dimensional requirements. It offers engineers and contractors greater flexibility in structural design, especially for large-scale buildings, bridges, industrial facilities, and heavy-load platforms.
Each built-up steel beam can be customized according to project drawings, including flange thickness, web height, stiffener arrangement, bolt holes, welding details, and surface protection.
Application Fields
Commercial building construction
Industrial factory structures
Bridge and overpass projects
Warehouse and logistics centers
High-rise building frames
Heavy-duty equipment platforms
Steel structure workshops
Parking garage structures
Roof truss systems
Temporary construction supports
Advantages
-
High Load CapacityDesigned to support heavy vertical loads and large-span requirements.
-
Customizable Size and ShapeCan be fabricated according to specific project dimensions and structural drawings.
-
Cost-Effective for Large SpansOften more economical than using multiple standard beams for long-span structures.
-
Stable Structural PerformanceWelded or bolted connections provide strong rigidity and load transfer.
-
Material EfficiencySteel plates can be arranged to optimize strength while reducing unnecessary weight.
-
Fast PrefabricationCan be prefabricated in the factory and delivered to the site for quick installation.
-
Suitable for Complex ProjectsIdeal for bridges, industrial buildings, and heavy-load platforms.
-
Controllable QualityProduction process can include dimension checking, welding inspection, and surface treatment testing.
-
Flexible Connection DesignSupports bolted, welded, or hybrid connection methods.
-
Durable with Proper ProtectionCan be treated with anti-rust primer, galvanizing, or coating systems for long-term outdoor use.
| Parameter | Details |
| Material Grade | Q235, Q355, or equivalent |
| Cross-Section Type | I-shape, box-shape, or custom built-up section |
| Flange Thickness | Customizable according to design load |
| Web Thickness | Customizable according to shear force requirement |
| Beam Height | Customizable, e.g., 300mm–1200mm+ |
| Length | Customizable up to transportable maximum length |
| Connection Method | Welded, bolted, or hybrid |
| Surface Treatment | Anti-rust primer, painted, galvanized, or as specified |
| Standard | Designed according to common steel structure design standards |
| Load Capacity | Based on project design and engineering calculation |
| Packaging | Bare packing, steel frame support, or export packing |
FAQ
Q1: What is a built-up steel beam?
A built-up steel beam is a structural steel member fabricated from steel plates rather than produced as a standard rolled beam. It is commonly used when custom dimensions or higher load capacity are required.
Q2: What are the main materials used?
It is usually made of high-strength structural steel such as Q235 or Q355, depending on load requirements and project specifications.
Q3: Can you customize the size?
Yes. Built-up steel beams are highly customizable in terms of height, length, plate thickness, hole positions, and connection details.
Q4: What surface treatments are available?
Common options include anti-rust primer, painting, galvanizing, and other custom coating systems.
Q5: How are built-up steel beams installed?
They can be connected by welding, bolts, or a combination of both, depending on the project’s structural design and site conditions.
Q6: What information do I need to provide for a quotation?
You should provide beam dimensions, load requirements, material grade, connection details, surface treatment, quantity, and project drawings if available.
Q7: Are these steel beams suitable for bridge construction?
Yes. Built-up steel beams are commonly used in bridge superstructures, overpasses, and other heavy-load infrastructure projects.
