Washington, DC, United States
Detailing and Engineering
Steel Fabrication and Erection
The Newseum is a six-story building with a total area of 516,000 square feet.
The building’s unique architecture helped to give the interactive museum added inside and outside visibility.
One of the most spectacular features of this building is the towering, freestanding stairway that is formed from a 69-ft. (21.3 m) folded steel column. Other components fabricated for this project include 56-ft. (17 m) vertical trusses composed of plate assemblies, twin trusses designed with web members sitting outside the plane of the upper and lower chords as well as vertical Vierendeel trusses, which were installed along the entire height of the seven story building.
The design of the steel-framed structure was both unique and complex, requiring the fabrication of several products, notably two tri-dimensional roof trusses 250 feet long by 18 feet deep and weighing 190 tons, representing a huge fabrication challenge. The large trusses had an unconventional geometry, with web members offset from the center line, outside the plane of the upper and lower chords.