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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: Partially Collapsed Precast Concrete Structure in New Orleans Saved by Offering a Practical Engineering Solution
Author(s): Subhash Kulkarni
Publication: Concrete International
Appears on pages(s): 45-50
Abstract:The partial collapse of an aging precast-concrete warehouse meant the structure may have to be demolished completely. Several core samples were taken from roof beams and columns, and petrography tests and compressive strengths were conducted. An extensive survey was performed to find the column plumbness, deflection of beams in place, and record the condition of existing columns. One of the roof girders was removed from the site and tested for strength and deflection in accordance with ACI 318-99. The crack propagation was recorded through field measurements and by photography and video taping. The resulting conclusion was that the girder carried the load through certain loading but failed by deflection criteria. The cracks were also visible to indicate failure of the girder. The recommendations were made to salvage the structure by reinforcing girder and columns through concrete or steel.
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