Working with Motioneering Inc., A&H fabricated the cradle, connecting components, including the bumper and bumper brackets for the largest TMD (tuned mass damper) system in the world (a 730-ton suspended steel sphere), and the only one that is an architectural feature of a building. A&H also built and tested the pinnacle TMDs for Taipei 101. Altogether, the fabrication of components took just under one year to complete.

A&H has also built TMDs for the Trump World Tower and Bloomberg Financial Building in New York City.

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