Grand Staircase with Pendulum Sculpture

Chaminade High School, Mineola, New York — 2017
Chaminade High School in Mineola, New York, recently added a new science building to its campus. The science building’s three-story atrium houses a grand staircase that wraps around a science-inspired sculpture, suspended from the ceiling. Mancini Duffy was the Project Architect and Sure Iron Works, the stair specialty contractor, engaged Geiger Engineers as the consulting engineer. Geiger coordinated with Mancini Duffy to create an integrated steel plate stringer and tubular steel tread system which fit the project budget while meeting the design goal of minimally obstructed views through the atrium’s exterior glazing. The steel tube members locally supported the wood stair treads and globally served as part of the horizontal load transfer system. The team was also charged with incorporating the Foucault Pendulum sculpture to be suspended over the stairwell and extend down through three floors. A halo-like ring was engineered to eliminate movements that could affect the precisely calibrated pendulum.
Client
Sure Iron Works
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