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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: Pavements and Slabs on Grade with Structurally Active Reinforcement
Author(s): Anders Losberg
Publication: Journal Proceedings
Appears on pages(s): 647-657
Keywords: concrete pavements;concrete slabs;joints (junctions);loads (forces);reinforced concrete;reinforcing steels; shrinkage;slab-on-ground construction;structural analysis;structural design;subrades;tensile stress;thermal properties;yield line theory.
Abstract:From a structural designer's point of view it is illogical to make a pavement design as a plain or very slightly reinforced concrete slab, relying upon the flexural strength of concrete, which otherwise in all normal concrete structures is completely disregarded. A more natural way is to use the principals of reinforced concrete and use a concrete slab design with a two-way reinforcement near the bottom, where bending action from concentrated loadings, such as wheels, gives excessive tensile stresses. In this case it is possible to use the yield line theory for design alculations of the slab. This pape gives, based on these principals, the theorectials analyses for the various load cases, and summerizes the results in simple design diagrams. A review of tests carried out shows the reliablity of these results. Also the influence of temperature and shrinkage effects are treated and simple formulas are given for he joint design. Finally, a design example shows the method of calculation and the use of the diagrams.
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