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Croke Park Stadium, with a capacity of 82,300, is one of the largest in
Europe. Only three venues in Europe are bigger.
The large triangular-shaped roof trusses, fabricated from circular hollow
section, are supported by twin sets of compression posts, fixed to a complex
concrete knuckle at the rear of the top tier of the stand and tension members
fixed back to the rear leg of the concrete Y-frame above the upper concourse
level.
Secondary planar arched trusses span between the main frames, from which
galvanized steel purlins are hung. These pick up the metal deck/ roof-glazing
element. The decking falls into gutters hung along the line of the bottom booms
of the main trusses.
Another interesting application of galvanized steel was in the construction
of the corporate box level. This is an inverted steel-framed structure,
suspended from the underside of the upper concourse level concrete structure.
There are numerous complex steel stairs within the new Croke Park stadium,
which have galvanized steel elements. The design of these steel stairs has
involved extensive coordination and discussion to ensure their aesthetic
requirements were met within the structural design.
A stair of particular interest structurally, is one that cantilevers off the
rear of the Canal End Stand.
It was a challenging design, with the main connections to the concrete
structure being critical elements.
The tubular handrailing and grid in-fill panels have been hot dip galvanized
to provide long lasting corrosion protection, also galvanizing can be found in
the new crowd control barriers, balustrading and support columns.
Architects: Gilroy McMahon
Structural Engineers: Horgan
Lynch & Ptns
Main Contractor: John Sisk & Sons
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