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Kammetal fabricated 48 triangular panels for the beacon of 1 World Trade Center. (courtesy DCM Erectors)
Seven tons of glass and steel clad a structural stainless frame on the Western Hemisphereâ€™s tallest building.
Brooklyn-based metal fabrication company Kammetal and DCM Erectors of New Jersey were selected to fabricate and install the crowning beacon atop the spire on 1 World Trade Center. The fabrication team executed SOMâ€™s design for a dynamic and complex adornment to one of the countryâ€™s most anticipated buildings, along with the help of engineers at Buro Happold to ensure safety at 1,776 feet.
To craft a 15-ton, 50-foot beacon that accounted for thermal expansion and movement, Kammetal modeled and drew their designs in SolidWorks. The companyâ€™s team laser cut 48 triangular 316 stainless steel panels with Â¼-inch thickness in a nondirectional finish to clad DCMâ€™s square tubular steel frame. â€œBefore we started the project, we had the structural frame 3D scanned to generate a point cloud,â€ explained Sam Kusack, president at Kammetal. â€œBecause the structure was so dynamicâ€”it contains zero right angles or reference pointsâ€”we had to verify the conditions.â€ Read More