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Case Studies

Lindapter’s Hollo-Bolts connect eight-story facade in New York

Sectors: Structural, Civil, Architectural
Applications: Structural Connections

Summary: Lindapter’s Hollo-Bolts were used to connect the eight-story artistic facade to the western wall of Helena 57 WEST in New York.

The ‘Flows Two Ways’ sculpture spans sixty-by-sixty feet and was designed to complement the main entrance to neighbouring skyscraper VIA 57 West, dubbed The Great Pyramid of Manhattan. The monumental cladding was made from a stainless steel mounting matrix to which 35 interlocking panels and 400 sixty-foot aluminum tubes were installed.

A secure and discrete connection was needed for the layered construction and anchoring system. The brief required a durable connection that would withstand seismic loads and extreme weather conditions. The engineers researched various connection methods which were evaluated for their ability to accommodate forces generated by wind and earthquakes. They concluded that the Hollo-Bolt by Lindapter was the best choice for the application because it is approved by ICC-ES for use in all seismic design categories (A-F) for resisting wind loads and seismic loads. After contacting the Lindapter technical department, American Signcrafters used 250 stainless steel Hollo-Bolts to secure the components to the stainless steel grid. 
Using the Hollo-Bolts resulted in a discreet architectural finish, which complemented the design of the sculpture. Moreover, the high strength long lasting materials ensured that the connection would out-live the other parts of the facade, avoiding unnecessary maintenance.  Moreover, eliminating the need for onsite drilling and welding and allowed a convenient, quick and easy installation, without area closures or damaging the metal components.

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