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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Review of the Skyline Plaza Collapse
Author(s): N. J. Carino, E. V. Leyendecker, and S. G. Fattal
Publication: Concrete International
Appears on pages(s): 35-42
Keywords: apartment buildings; collapse; compressive strength; concrete construction; concrete slabs; failure; form removal; high-rise buildings; punching shear; reinforced concrete; shear stress.
Abstract:On March 2, 1973, portions of the Skyline Plaza apartment building, under construction in Fairfax County, Va., collapsed. The failure resulted in the death of 14 workers; 34 others were injured. Results of the failure investigation carried out by the National Bureau of Standards are summarized. Based on structural analyses and estimates of concrete strength at the time of the collapse, NBS investigators concluded that the probable cause was a punching shear failure of the 23rd floor slab. The critical condition was attributed to premature removal of shoring below the 23rd floor slab at the time the 24th floor was being placed and the low strength of that portion of the 23rd floor which was unshared.
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