Steel Truss: Specifications, Weight & Applications

This is a standard circular-tube steel roof truss, widely used in industrial plants, warehouses and public buildings. Below are its actual fabrication data from the component detail sheet.

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Specifications

Item	Value
Truss ID	HL2-2
Unit quantity	10 pcs
Unit weight	2,041.4 kg
Total weight	~20,414 kg (20.4 t)
Main chord	PD83×6 circular tube
Web member	PD54×4 circular tube
Max chord length	17,721 mm

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Main Chords

Three main tubes make up the primary span:

· PD13: 17,721 mm, 196.8 kg × 1 pc

· PD14: 17,721 mm, 196.8 kg × 1 pc

· PD15: 16,988 mm, 188.4 kg × 1 pc

Combined chord length: 52.4 m. The 17.7 m chord supports a practical roof span of roughly 18–24 m.

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Web Members

Web members use PD54×4 tube. Total web count:

· PD7: 68 pcs × 607 mm

· PD8: 35 pcs × 488 mm

· PD9: 34 pcs × 603 mm

Total web members: 137 pcs, weighing over 419 kg. The triangular web arrangement transfers loads axially, reducing overall steel consumption by 30–50% compared to solid-web girders.

 

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Gusset Plates

Over 20 plate specifications are used, including:

· PL5 series: P1–P5, P26, P31, P32 (thickness 5 mm)

· PL8×83: 54 pcs (node stiffeners)

· PL12 series: P13, P14, P27 (thickness 12 mm, critical nodes)

Heaviest plate: P5 (PL5×3350) at 129.5 kg each. Lightest: P12 at 0.9 kg each.

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Typical Applications

1. Single-story industrial plants — 18–24 m bay, 8–16 t truck crane erection, 10 units cover a 60–120 m long building.Logistics warehouses & sorting centers — column-free interior for racking; bottom chord supports 1–3 t cranes.Exhibition halls, canteens, auditoriums — exposed tube frame fits open-ceiling design, no suspended ceiling needed.Agricultural facilities — corrosion-resistant finish suits high-humidity livestock and greenhouse environments; service life 25+ years.农Building retrofits & rooftop additions — 2-ton unit weight minimizes load on existing structures and requires small cranes.

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Limits to Note

· Spans over 30 m require rechecking the PD83×6 chord capacity. Heavy crane loads (>10 t) need structural review.

· Long mountainous transport may limit the 2-ton unit shipping radius.

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HL2-2 steel truss — 2,041 kg per unit, 17.7 m main chord, 137 web members. Standardized, prefabricated, ready for erection.