During 2015, the world was treated to
an array of new construction that continues to push the envelope in terms of
both size and architectural design. One of those buildings is 432 Park Avenue
in Midtown Manhattan that overlooks Central Park. The new tower represents a “new generation of
supertall, superslim skyscrapers,” as the pencil-thin design efficiently
maximizes the confined Manhattan site.
Featuring 104 condominium apartments,
the building topped out at 1,396 ft. (426 m), to make it the third tallest
building in the United States, and the tallest residential building in the
world. In New York City, it is right
behind the One World Trade Center, which is the tallest building in both New
York City and the country. The Empire
State Building is now the third tallest in the city.
The tower’s owner is 56th and Park (NY) and the developer was the CIM
Group / Macklowe Properties. The
architects were Rafael Viñoly Architects and SLCE Architects, LLP. The construction of the tower includes a 30-ft.
square reinforced concrete core with 30-in. thick walls that house the elevator
shafts and building mechanical services.
Wikipedia reports that, “the facade, with the formed surface left as the
final finish without any added facia, was poured in place from concrete using
14,000 psi white Portland cement, and cast around preassembled full-floor cages
of #20 rebars with articulated steel formwork.”
The 85-story building has a floor-to-floor
height of 15 ft. 6 in. While most of the
floors consist of 10-in. thick slabs, the upper stories have slabs of up to 18-in.
thick to provide more mass and help to reduce swaying. In addition to improve stability of a
building with a 1:15 slenderness ratio, “A regular grid of exposed concrete that
creates an open basket from which seven “independent buildings” are separated
by spaces where the building’s core is exposed to the outdoor elements.”
The Conco Companies are a leading
supplier of concrete services for the Western U.S. We got our start in the Bay Area in 1959 by
offering clients the best value on a wide range of concrete services and
products. Since that time, we have taken
a leading role as one of the top concrete contractors in the region. We have
four regional offices serving California, Nevada, Washington, Oregon and
Colorado.
Sources:skyscrapercenter.com/building/432-park-avenue/13227
en.wikipedia.org/wiki/432_Park_Avenue
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