Our heavy-duty H-section trusses utilize wide-flange I-beams to span long distances, offering superior load-bearing capacity and structural stability. Ideal for large-scale warehouses, aircraft hangars, and manufacturing facilities, these trusses optimize material efficiency and can reduce overall structural weight by approximately 30% to 40% compared to traditional solid beams.
To support you from design through delivery, we package our full service in one place, we deliver a one-stop package: Tekla 3D design & detailing (AISC 360 / Eurocode 3 / GB 50017), SAW and CO2 gas-shielded welding, CNC-cut and drilled joints, hot-dip galvanizing or Sa2.5-plus-epoxy, numbered flat-packed 40' container shipment - and a 24-hour quote.
Common H-section Trusses Configurations
Pratt Truss
Features: Diagonal web members slant toward the center. This configuration optimizes material usage for gravity-dominated loads.
Application: Highly efficient for long-span large sheds and industrial warehouses.
Warren Truss
Features: Consists of equilateral or isosceles triangles, ensuring excellent weight distribution across the span.
Application: Ideal for expansive roofing systems and projects with wide column spacing, providing a clean aesthetic.
Howe Truss
Features: Diagonal members slant outward from the center. It is designed to handle heavy compression in web members.
Application: Widely used for heavy-load industrial roofing and structures requiring extreme mid-span rigidity.
Engineering Performance & Design Notes
This section explains how the H-section truss resists load and how it is checked, so you can size and specify it correctly.
Load model – the truss is analyzed for dead, live, wind, snow and crane loads as an assembly of axially loaded members.
Gravity-only vs compression web – Pratt suits gravity-dominated loads; Howe handles heavy web compression; Warren balances distribution.
Erection framing – chords are spliced with high-strength bolts at site; bracing and purlin supports tie to the stable top chord.
Deflection control – wide-flange chords keep out-of-plane stiffness high, holding deflection within L/1000 on 30 m+ spans.
Detailing software – Tekla Structures (3D), AutoCAD and PKPM for clash-free drawings.
Applicable design standards: AISC 360, Eurocode 3 (EN 1993), GB 50017 and AS/NZS 4100 - select per target market; welds to AWS D1.1 where specified.
Specifications of H-section Trusses
| Product Name | Heavy-Duty Fabricated H-Section Steel Truss |
| Material Grade | Q355B/C/D/E, Q420B; ASTM A572 Grade 50; EN10025 S355JR/J0/J2 |
| Design Standard | AISC 360, Eurocode 3 (EN 1993), GB 50017, AS/NZS 4100 |
| Section Type | Hot-rolled H-beams or Built-up Welded H-profiles |
| Span Capacity | Optimized for 15m to 60m+ large-span structures |
| Connection Type | High-strength Bolted Splicing (Gr 8.8/10.9) or Full Welding |
| Welding Process | Automatic Submerged Arc Welding (SAW), CO2 Gas Shielded Welding |
| Surface Treatment | Hot-dip Galvanized (ISO 1461), Shot Blasting Sa2.5 + Epoxy Coating |
| Quality Control | 100% Visual Inspection, Ultrasonic Testing (UT), Magnetic Particle Testing (MT) |
| Drawing Software | Tekla Structures (3D Model), AutoCAD, PKPM |
| Application | Aircraft Hangars, Industrial Workshops, Logistics Centers, Large Stadiums |
Core Advantages of H-section Trusses
Massive load and high rigidity
H-section chords give a 30% higher moment of inertia than pipe trusses at the same weight, comfortably supporting 50-ton+ industrial cranes and complex localized loads.
Superior lateral stability
The wide-flange shape raises out-of-plane stiffness by 25%, keeping deflection strictly within L/1000 for spans over 30 m.
100% bolted efficiency
CNC-drilled gusset plates and high-strength bolted splicing eliminate field welding, cutting on-site installation time and labor cost by 40–50%.
Built-up section flexibility
Welded H-profiles are sized to your bending and web-compression demands, achieving the same roof with 30–40% less steel than a solid beam.
Applications of H-section Trusses
Industrial Facilities & Warehousing
Column-free factories, aircraft hangars and logistics centers that need large, unobstructed open floors for mechanical equipment and warehousing operations.
Bridge Construction
Overpasses and railway bridges that distribute substantial vertical and horizontal loads across long spacings.
Sports & Entertainment Venues
Long-span roofs for stadiums, auditoriums and convention centers, eliminating obstructive columns that block sightlines.
High-rise Buildings
Structural supports or transfer trusses that disperse dead and wind loads across super-high-rise structures.
Manufacturing & Quality System
GNEE operates advanced, large-scale production lines specialized for high-performance H-section trusses, integrating precision CNC cutting and automated welding to ensure the perfect fit-up of complex joints and gusset plates. Our facility leverages heavy-duty straightening systems and massive lifting capacity to handle long-span truss sections with ease, guaranteeing that every component delivers the ultimate structural integrity and dimensional accuracy required for critical industrial and infrastructure projects.
Production Process
CNC plate cutting – chord flanges, webs and gusset plates are cut and profile-marked by CNC plasma/flame cutters.
Sub-assembly & tacking – flange-web pairs are staged and tack-welded on the H-beam assembly line.
Automatic submerged-arc welding – main chord welds run on SAW for deep penetration; secondary joints use CO2 gas-shielded welding.
Straightening – welded H-profiles pass through the flange straightener to hold the L/1000 tolerance.
Drilling & fit-up – CNC drilling machines pick up gusset and splice bolt holes; members are dry-fitted to the jig.
Final welding & NDT – truss joints are welded and critical welds tested by UT and MT.
Surface treatment & dispatch – shot blasting Sa2.5 + epoxy, or outsourcing to the partner galvanizing line, then flat-pack loading.
Quality Control
100% visual inspection – every member and weld visually checked before release.
Ultrasonic testing (UT) – critical chord and node welds scanned for internal defects.
Magnetic particle testing (MT) – surface and near-surface weld flaws detected on high-stress joints.
Dimensional & camber check – span, height and pre-camber verified against the Tekla model and erection drawing.
Our Export Cases
| Sector | Export country | Project scale (industry-typical) |
|---|---|---|
| Heavy manufacturing | Bangladesh (Chittagong) | Roof trusses for a 30 m crane-bay workshop, approx. 45 tons. |
| Logistics | UAE (Abu Dhabi) | Column-free logistics-center roof trusses, approx. 120 tons. |
| Aviation | Philippines (Manila) | Aircraft-hangar roof framing for wide clear door spans, approx. 85 tons. |
| Stadiums | Australia (Sydney) | Long-span auditorium roof trusses with strict L/1000 control, approx. 60 tons. |
Packing & Transportation
| Item | Detail |
|---|---|
| Packing | High-strength steel strapping on wooden dunnage; protective wrapping against scratches and transit damage. |
| Transport | Flat-pack design maximizes 40' container use; loaded as GP, OT or flat-rack by heavy forklift. |
| Lead time | Typical custom range 30–45 days after drawing approval. |
| Marking | All members and sub-assemblies individually numbered for fast, error-free on-site assembly. |
| Docs shipped | Packing list, loading plan, mill certs, NDT report and assembly/erection drawing. |
FAQ:
Why choose an H-section truss over a tubular truss for a crane-served building?
A solid H chord carries vertical crane and local heavy loads more rigidly than a thin tube - about 30% higher moment of inertia at the same weight. So for plants with 50-ton cranes and concentrated machine loads, an H-section truss gives stiffer, safer performance; a tubular space truss fits lightweight curved long-span architecture instead.
How big a crane or lifting setup do I need to erect these trusses?
It depends on segment length and weight. We size shippable segments so a mobile crane of the class you confirm with our erection plan can pick them; we provide lifting points and a segment weight list so you can hire the right machine without guesswork.
How does roof slope work together with the truss design?
Top-chord level and end-bearing plate are set to your roof slope, so drainage and panel profiles (e.g. standing-seam) tie cleanly to the truss. We model the actual slope into the Tekla chord geometry rather than assuming a flat member.
What is pre-camber for, and why does fabrication need it?
Manufactured pre-camber offsets the downward deflection a loaded truss develops, so under full load the chord levels out to the design line. Without it, a long span sags visibly at mid-span; we set and hold pre-camber through the welding and inspection sequence.
How should I budget the steel tonnage for a project?
As a planning guide, H-section truss framing typically lands in a comparable range per square meter to a similar welded built-up system once span and crane load are fixed; send span, bay spacing, gradient and crane capacity and we confirm section + estimated tons within 24 hours.
