Big R Tunable Bridge

Big R Tunable Bridge

Big R Tunable Bridge

Product catalog summary
Introduction
The document introduces The Tunable Bridge™, a revolutionary modular steel bridge design by Big R. It combines the physics of a hinged tied arch with standard steel truss systems or girder superstructures, featuring an innovative adjustable tuning design.
Specifications
The Tunable Bridge™ offers clear spans of up to 400 feet. It is lightweight, economical, easy to install, and visually appealing. The design is a structural hybrid that reduces costs while expanding possibilities.
Innovation and Design
Invented by Joe Meheen, the bridge combines the benefits of a hinged tied arch system with a standard steel truss system. It can balance or tune the structure's natural frequencies, similar to a finely-tuned instrument. Longitudinal tightening rods in the trusses' lower chords pre-stress the truss modules for dead load before installation. The tied-arch sections are attached by adjustable tension hanger rods to balance the live load.
Safety and Efficiency
The design features no critical members, allowing for redundant stress sharing, which increases safety and permits the use of lighter, lower-cost materials. This results in longer, more graceful designs. The modular components install quickly, with all pins and connectors visible for easy inspections.
Applications
The Tunable Bridge™ is ideal for high-traffic areas or difficult terrain. It represents a significant advancement in modular steel bridge design, offering a new dimension in bridge construction.
Contact Information
For more information about The Tunable Bridge™ or other engineered solutions from Big R, call 1 800•234•0734 or visit bigrbridge.com.
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Catalog excerpts

Big R Tunable Bridge-1

Genuine innovation takes us farther. The Right Bridge. Built Right.

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Big R Tunable Bridge-2

It goes well beyond the boundary. It makes the impossible possible.

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Big R Tunable Bridge-3

Introducing a revolutionary breakthrough in modular steel bridge design – The Tunable Bridge™ from Big R.

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Big R Tunable Bridge-4

With clear spans of up to 400 feet, The Tunable Bridge ™ is a structural hybrid that's short on costs and The Tunable Bridge™ combines the physics of a hinged tied arch with any standard steel truss system or girder superstructure and features an innovative adjustable "tuning" system to balance the live and dead loads between the arches and trusses. The resulting design is lightweight, economical, easy-to-install and very attractive. The Right Bridge. Built Right.

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Big R Tunable Bridge-5

Lightweight, easy-to-install, and very attractive, The Tunable Bridge™ takes modular steel bridges to a whole new dimension. Real innovation is a rare bird, and The Tunable Bridge™ from Big R Bridge is the genuine article. Invented by Joe Meheen (veteran Denver engineer, multiple patent holder, lifetime friend of the bridge industry, and self-taught ultra-light aircraft designer), this amazing advance in bridge design combines the inherent benefits of a hinged tied arch system with those of a standard steel truss system. And, thanks to Meheen’s ingenuity, The Tunable Bridge™ can balance or “tune”...

 Open the catalog to page 5

Archived catalogs

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.