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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: Shored/Reshored Construction of Flat Plates
Author(s): Luc Monette and N.J. Gardner
Publication: Concrete International
Appears on pages(s): 25-32
Keywords: deflection, punching shear, construction, form
Abstract:Flat plates are usually constructed using a single level of shores (forms) supporting the freshly placed concrete. Shored construction accumulates load to the lowest (oldest) plate in the shored sequence, while shored/reshored construction applies the load to the upper (youngest) plate in the system. Historical shoring analyses are reviewed and the results of a parametric analysis of the effect of reshore stiffness are presented. Based on the analyses, factors are provided for calculation of the required strength of supporting flat plates in buildings constructed using a single level of shores and multiple levels of elastic reshores.
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