220 Central Park South

The Facts

Location: 220 Central Park South,
Manhattan, New York City
Construction work performed by:
Cross Country Construction LLC
Sq. ft.: 472,523
Height: 950 feet
Stories: 66
Cycle Time: 3 days on typical floors
Developer: Vornado Realty Trust
Architect: Robert A. M. Stern.
Type of structure: residential skyscraper

The Challenge

This building was designed with a perimeter spandrel beam which is a perfect fit for the custom made steel hinged column and beam formwork.

Products used

• Core: Super Climber SCP, Frami Xlife wall formwork
• Shear walls and Columns: Frami Xlife wall formwork
• Perimeter columns and spandrel beams: Custom Steel hinged forms
• Building Perimeter Xclimb 60 hydraulic climbing system
• Floors: Dokadek for the slabs in conjunction with Dokaflex in detailed cut up areas

The Solution

• The Xclimb 60 hydraulic climbing system is well matched to provide the rollback feature needed to ensure the stripped Formwork can clear the poured concrete in order to climb to the next lift.
• The Xclimb system also serves as a multi-level work platform system that doubles as protection from anything being able to fall from the working floors, similar to our protection screen system.
• The hydraulic climbing capability takes the need for the crane away and allows the crane to serve other aspects of the jobsite.
• The perimeter beam and column design with this smaller footprint yields a flat slab with little or no concrete beams. The project is a flat slab that can be formed very quickly using our large 4’x8’ panels, making it a perfect fit to utilize Dokadek.

The Professional

“We climb the perimeter system first thing in the morning and are able to start the deck formwork around 9:00 am. By noon, we are able to erect most all of the deck formwork because Dokadek is so fast when there are no interruptions. We did approx 7500 sq. ft. within three hours with 4 workers.”

Darren, Foreman,
Cross Country Construction LLC