A revolutionary breakthrough in bridge design.
With clear spans of up to 122 m (400'), The Tunable Bridge is a structural hybrid that’s long on possibilities and short on costs.
The Big R Tunable Bridge combines the physics of a tied arch with any standard steel truss system or girder superstructure and features an innovative adjustable structural system to balance the live and dead loads between the arches and trusses. With no fracture critical members, this redundant stress sharing system increases safety and allows for lighter, lower-cost material and longer, more graceful designs.
The resulting design is lightweight, economical, easy-to-install and very attractive. Ideal for spanning high-traffic corridors or difficult terrain. The modular components install quickly and have all pins and connectors visible for easy inspections.
- Very attractive
- Highway and rail crossings
- Stream Crossings
- Recreational Trail Bridges