3 World Trade Center (3 WTC)

Connecting the multi-story Retail Redevelopment-East retail concourses at 3 World Trade Center with the Oculus pathway below required a robust and reliable support system for the building's vertical transportation (escalators) infrastructure. The architecturally expressive geometry and loading requirements of the application demanded a solution capable of efficiently transferring forces while accommodating the articulation necessary for the supporting structure.

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By leveraging the geometric freedom of steel castings, CAST CONNEX custom-designed clevis connectors efficiently resolve complex force paths while creating elegant node forms that complement the surrounding architecture. The AESS custom castings deliver refined geometry and superior surface quality that would be difficult to achieve using traditional steel fabrication methods.  

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The CAST CONNEX custom castings are welded to built-up rectangular structural steel box sections to create dramatic connection points for the steel girders. The steel castings support the suspended escalator framing and connect to the steel walkway trusses that together support the glass floor of the multi-story escalator landings.

The result is a structural connection that performs as both an engineered solution and a visible architectural feature.

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