Portal Frames

The portal frame system provides a faster and more cost effective alternative to cast insitu abutments and bridge beams. Portal frames consist of an n-shaped upper unit and 2nr L-shaped footings per ring. Units are designed for any loading, including RU railway and fulfil Eurocode requirements.

Alternative to bridge beam construction
Hinge Joint between wall and roof
Multiple sizes available
Designed per project requirements
No insitu inside the structure
Immediately stable
Waterproof membrane option available
Used by Network Rail and Irish Rail
Used for road infrastructure

Spans = 4.0 to 20.0 m
Rises = 1.0 to 7.0 m
Length = 1.5 to 2. 5m

U on U Portals

The demand for precast concrete portal frame systems is constantly growing due to their flexibility, restrictive on site programmes, quick installation and instantaneous stability.

Underbridge for road and rail
Adjustable moulds – fit to measure
Hinge joint located at mid-height
Immediately stable
Waterproof membrane option available
Mammal shelf available
Used by Network Rail and Irish Rail
Used for road infrastructure

Spans = 1.0 – 10.0 m
Rises = 1.0 – 6.0 m
Length = 1.0 – 10.0 m

Arches

Precast concrete arches are individually designed by our experienced design team as per client project requirements. They are ideal for use in tunnels, over water and as underpasses for road and rail.