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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: Prestressed Concrete Shell Fpr Grandstand Roofs
Author(s): Henry M. Layne and T. Y. Lin
Publication: Journal Proceedings
Appears on pages(s): 409-422
Abstract:Discusses in general terms the design, construction, per-formance, and economy of cantilevered prestressed thin shells which form the roof over the three main grandstands of Venezuela’s new National Race Track in Caracas. The prestressed shells, which constitute the roof, are 100 ft above the ground floor and extend 90 ft from their supporting columns. The design of the roof, after first attempting a rigorous mathematical analysis, was based on the assumption that prestressing had transformed the shells into horizontal columns with no bending. Prestressing practically eliminated cracks and deflections and reduced the shell thickness to 3 in. Further information on the performance and design are given along with the method and manner of prestressing and a comparative cost estimate between the design and one using only ordinary reinforcement
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