Product Overview
This is a heavy duty steel structure workshop designed around the crane and the process inside it rather than a standard shed. The portal frame is built from hot rolled H beam columns and rafters sized for the span and for the crane load, and where the crane runs the columns carry a stepped bracket supporting a runway beam of H beam or a built up plate girder. All field connections are grade 10.9 high strength bolted, and the columns land on anchor bolts set from our foundation drawing, so erection proceeds without site welding. Roof and wall can be single skin colour sheet or sandwich panel, with translucent sheets or ridge ventilators for daylight and airflow.
Specifications
| Parameter | Value |
|---|---|
| Span | 15 – 36 m (single or multi span) |
| Eave height | 6 – 18 m |
| Building length | 40 – 200 m at 6 – 9 m bay spacing |
| Crane capacity | 3 – 32 tons (single or double girder) |
| Crane rail height | 4 – 14 m |
| Main frame | Hot rolled H beam Q345B / Q235B |
| Runway beam | H beam / welded plate girder |
| Column base | Pinned or fixed / cast in anchor bolts |
| Purlins | C or Z cold formed galvanized |
| Bracing | Round bar horizontal plus angle or tube vertical |
| Cladding | Colour sheet 0.4 – 0.6 mm / sandwich panel 50 – 100 mm |
| Roof slope | 5% – 10% |
| Surface treatment | Shot blast Sa2.5 / epoxy primer 60 – 80 micron |
| Design loads | Roof live 0.5 kN/m2 / crane dynamic and local wind per project |
Applications
Used for manufacturing workshops with overhead cranes, steel and machinery fabrication halls, concrete product plants, combined warehouse and workshop buildings, vehicle repair shops and power plant turbine halls. Project buyers in the Middle East, Africa and South America order the complete package including anchor drawings, so local contractors only pour the foundation.
Packing / Delivery / Payment
Members are marked and packed in erection sequence, with main steel strapped bare and bolts, anchors and fittings in wooden cases, loaded in 40HQ containers or break bulk; a 20GP holds about 22-25 tons. Lead time is 35-50 days including design approval. Payment by T/T 30% deposit and balance before shipment, or L/C at sight. Structural calculation report, CE documents, SGS inspection, packing list, Certificate of Origin and erection drawings are provided.