Architectural Steel Structures

In exposed steel, optimization balances weight with fabrication effort and visual quality. We rationalize curved and complex geometry into repeatable segments, standardize connection details where possible and define where AESS requirements apply so that hidden steel can be fabricated economically. Early agreement on visual acceptance criteria avoids costly rework later.

Architectural members include curved sections, tapered plate girders, tubular trusses, cast nodes and feature frames. We use rolling and bending for curved members, and weld to the AWS D1.1 or EN 1090 execution class specified, with grinding, blending and finishing to meet the agreed AESS category, including control of weld profile and surface consistency.

Trial assembly is carried out for complex nodes and feature structures to confirm geometry and appearance before shipping. Piece marks are applied discreetly so they do not show on exposed surfaces, and finished members are handled with soft slings and padded supports within the shop to preserve the surface ahead of coating.

Our inspection and test plan for architectural steel combines structural and visual checks. Materials are traced to mill certificates, welds are inspected visually with ultrasonic or magnetic particle testing where specified, and visual acceptance criteria are checked against agreed mock-ups or samples. Dimensional surveys confirm geometry of curved and complex members, and coating thickness and appearance are recorded. All records are compiled in a QC dossier.

Exposed steel must look good and last, both indoors and outdoors. We specify coating systems that meet ISO 12944 corrosivity and appearance requirements, often with a high-build primer, intermediate and decorative topcoat. Intumescent fire protection is selected for compatibility with the finish, and thin-film systems are used where fire ratings and visual quality must coexist. Galvanizing is considered for external canopies where its appearance is acceptable.

Finished architectural steel must reach site free of damage. We pack members with protective wrapping, padded supports and edge guards, and sequence shipments by erection zone. Curved and oversized items are shipped with engineered cradles. Export documentation, packing lists and handling instructions accompany each delivery.

We support erection with drawings, assembly geometry and lifting data, and provide method statement input on temporary supports and protection of finished surfaces. Our engineers advise on geometry control and connection sequences for complex structures. Where agreed, we provide technical supervision during installation of key elements and final inspection of exposed finishes.