Title:
Concrete Shear Walls and Spandrel Beam Moment Frame Brace New York Office Tower
Author(s):
Joseph P. Colaco, J. B. Ames, and Eli Dubinsky
Publication:
Concrete International
Volume:
3
Issue:
6
Appears on pages(s):
23-28
Keywords:
concrete construction; floors; fly ash; high rise buildings; high strength concretes; plasticizers; shear walls; skyscrapers; structural analysis; structural design; wind pressure
DOI:
Date:
6/1/1981
Abstract:
The 101 Park Avenue Tower is a 46-story reinforced concrete building being built in Manhattan. Fifty-four structural framing options were studied before selecting a reinforced concrete frame. A concrete shear wall and spandrel beam moment frame were utilized with exterior columns 28 ft 6 in. (8.7 m) on centers. The floor framing system consists of a one-way beam and slab system. In order to minimize the column sizes, high-strength 8000 psi (55 MPa) concrete was used for construction of the columns and walls at lower floor levels and 4000 psi (28 MPa) concrete at the top. A 3-day cycle time was maintained for the construction of each floor. Superplasticizers were used to improve the quality of the work, and fly ash was introduced to allow for early attainment of strength and early stripping of concrete while reducing cement content.