Introduction
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Why Composites
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Why Composites
The Power ofComposites
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Precast concrete frame with a pillar-beam ring

key features

Composites elements: roof components, GRP rebar in the deck and moulded architectural design features.

Why composites: the roof components provided a flowing architectural design, with low weight and ease of installation. The GRP rebar created maintence-free infrastructure solution.
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Weight
GFRP is significantly lighter than traditional materials like steel and concrete. Used in the roof structure, it helped reduce the load on primary trusses, enabling a large, column-free span for unobstructed views. In the deck, GFRP’s weight—about one-quarter of steel—reduced foundation loads, simplifying construction over the railway.
Cost
By reducing structural weight, less material was required for support, lowering construction costs. GFRP rebar in the deck eliminated the need for costly corrosion protection systems. The low maintenance of composites also results in long-term cost savings.
Strength
GFRP provides high strength-to-weight performance, allowing the roof to span a massive seating area without internal supports. The deck’s GFRP reinforcement improved load-bearing capacity while ensuring structural integrity above an active railway.
Durability
Composites are corrosion-resistant, unlike steel, which rusts and weakens over time. The GFRP roof and deck reinforcements will not degrade due to moisture, de-icing salts, or electromagnetic interference, ensuring a long lifespan (potentially 80+ years for GFRP-reinforced concrete).
Maintenance
The non-corrosive nature of GFRP means it does not require protective coatings, repainting, or anti-rust treatments. The roof and deck require minimal upkeep, reducing operational costs over time.
LCA/Environmental Impact
Using composites contributed to the arena achieving LEED Gold certification. GFRP elements extend structural life, reduce material waste, and eliminate corrosion-related repairs. Fewer maintenance interventions also mean a lower environmental footprint over the building’s lifetime.