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Solution · Built-up members
Built-up steel: the right section for every metre
Welded plate girders, tapered rafters and box columns made in our plant – less tonnage than rolled sections for long spans and heavy loads.
- Tapered
- Rafters & columns
- Any depth
- Plate girders
- Automatic
- Submerged-arc welding
Why weld your own sections?
Rolled sections come in fixed sizes; the design must jump to the next size up even where the force is lower. A built-up member is welded from plate to exactly the depth and thickness needed, and tapered where moments fall away.
On a typical portal frame building this saves a meaningful share of tonnage – which also lowers freight cost to the Philippines.
Applications
Where built-up members pay off
01
Portal frames
Tapered rafters and columns.
02
Transfer girders
Carrying columns over open floors.
03
Crane girders
Deep sections for heavy cranes.
04
Box columns
Heavy axial loads in multi-storey frames.
05
Long-span roofs
Deep, light girders.
06
Bridges and platforms
Plate girders to any depth.
Engineering
Plate girders and boxes
Plate girders reach depths no rolled section can, and box columns carry heavy loads in a compact footprint.
Codes & compliance
Designed for Philippine approval
The codes our engineers work to on Philippine projects – and the approvals your project team will obtain with our documents.
Philippines
- NSCP 2015 Vol. 1National Structural Code of the Philippines – loads, wind (Sec. 207), seismic (Sec. 208) and steel design
- AISC 360 / AISC 341Structural steel design and seismic provisions, as referenced by NSCP Chapter 5
- AISI S100Cold-formed steel members – purlins, girts and eave struts
- AWS D1.1Structural welding – procedures, welders and inspection
- ISO 12944Corrosion protection by paint systems, by corrosivity category C2–C5
- PD 1096 · RA 9514National Building Code and Fire Code of the Philippines (Revised IRR 2019)
- Engineer of record
- Plans and calculations signed and sealed by a Philippine-licensed civil or structural engineer for the building permit
- Fire safety
- Fire Safety Evaluation Clearance (FSEC) from the BFP before the permit; fire-resistance ratings per type of construction
Summary for orientation only – the project specification, the adopted code edition and the authority having jurisdiction govern.
FAQ
Frequently asked questions
Are built-up members as strong as rolled sections?
Yes. Welds are made by qualified procedures and tested, and the plate is mill-certified.
Do they cost more to make?
Fabrication costs more per tonne, but the tonnage saving usually outweighs it on medium and long spans.
Related content
Reference projects
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