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Marshall University’s Professor Helps Develop Press Brake Formed Steel Tub Girder Bridge

Infra News - Published on Wed, 28 Aug 2019

Image Source: Huntington News
Huntington News reported that Dr Greg Michaelson, an assistant professor of engineering at Marshall University, has assisted the Short Span Steel Bridge Alliance and the West Virginia Department of Highways in developing West Virginia’s first press-brake-formed steel tub girder bridge. Crews began work to erect the bridge on August 20, near East Lynn in Lincoln County, District 2, and work is expected to continue through November. Dr Michaelson helped research and develop the innovative technology for the 58 foot span Fourteen Mile Bridge. Contractor for the project is ORDERS Construction Company of Saint Albans. A second press brake formed steel tub girder bridge is expected to be constructed on US 250 over Flat Run near Mannington, West Virginia, in 2020.

The press-brake-formed tub girder system consists of galvanized shallow trapezoidal boxes fabricated from cold-bent structural steel plate. A concrete deck is precast on the girder, making it a modular unit that can be transported by truck to the project site. The system is ideal for spans up to 60 feet. It saves time and costs for bridge owners since it can be installed as a single modular unit usually in one or two days by local crews, will last for an estimated 100 years, and requires minimal maintenance during its lifetime. The expedited installation process ensures the new bridge is opened for service in a timely manner, minimizing disruption to traffic.

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Posted By : Sanju Moirangthem on Wed, 28 Aug 2019
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