The MARC
New York, NY
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MARC, a $76 million structure designed by Frank Williams and Associates
and engineered by Rosenwasser/Grossman of New York, N.Y., will have
393 apartments on 37 floors; ground-floor retail; four-story, 550-car
garage; and a common floor with a health club, laundry room, child
care center and other amenities.
Located between 53rd and 54th Streets on 8th Avenue in New York
City the structure rises 43 stories (432 ft.) into the city skyline,
with a soaring crown accented by a flying column design.
Above the 5th floor, the MARC is a typical efficient residential
flat plate building constructed of an 8 inch flat plate erected
with a two-day cycle. Below the 5th floor, the building is a complicated
system of transfers and offsets.
The single cellar lies 18 inches above converging MTA subway lines
that trace diagonally across the site. As a result, it was necessary
to transfer a portion of the shear-wall which was located directly
above the MTA lines using a series of transfer girders.
This load transfer resulted in a complex load path where the use
of finite element modeling as well as strut and tie models provided
a safe and efficient design for the numerous loading combinations.
This modeling facilitated the design of the deep concrete beams
(12 – 20ft high) spanning across the MTA lines while picking
up the remaining tower columns.
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| Owner:
The Moinian Group on Behalf
of 900 Eighth Avenue Condominium LLC
Architect:
Frank Williams & Partners
Structural Engineer:
Rosenwasser/Grossman Consulting Engineers, P.C.
Construction Manager:
HRH Construction LLC
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