Introduction
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Why Composites
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Why Composites
The Power ofComposites
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Lightweight Fibre-Reinforced Polymer (FRP)

key features

Composites elements : the bridge’s modular deck and supporting spine were constructed from lightweight composites, including flax fibres and embedded fibre optic monitoring sensors.

Why composites : composites were selected for the FLOW Bridge due to their lightweight nature, cost efficiency, strength, durability, low maintenance requirements, environmental benefits from concrete-free foundations, and adaptability for modular, site-specific configurations.
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Weight
Composites are 50% lighter than steel, enabling concrete-free foundations, reducing the need for heavy installation equipment, and minimising ground loads.
Cost
The system is projected to cost 40% less than standard steel footbridges due to reductions in material, production, and installation expenses.
Strength
The design incorporates flax fibres and embedded fibre optics for structural monitoring, ensuring high performance while maintaining durability under varied conditions.
Durability
Composites are resistant to corrosion and environmental damage, ensuring a long lifespan with minimal degradation over time.
Maintenance
The embedded fibre-optic monitoring system minimises the need for manual inspections, and the modular design allows for easy upgrades or redeployment.
LCA/Environmental Impact
The use of FRP reduces the carbon footprint by eliminating concrete, minimising site waste, and allowing materials to be repurposed or relocated, ensuring sustainable lifecycle management.