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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: Mat Design
Author(s): Joesph E. Bowles
Publication: Journal Proceedings
Appears on pages(s): 1010-1017
Keywords: computer programs; consolidation; finite element theory; finite element method; foundations; soils; stresses; structural design; subgrades.
Abstract:A brief survey of computerized methods for mat design is given with particular advantages and disadvantages of the three common discrete element methods: the finite difference, finite grid, and finite element methods. The modulus of subgrade reaction (ks) is considered in some detail both in obtaining reasonable initial design estimates and simple methods to couple node effects. Coupling has been one of the most serious criticisms of using the modulus of subgrade reaction in mat design. It is also shown how to adjust (ks) for consolidation settlements. A mat example which was published earlier by ACI is reanalyzed to illustrate the effect of the simple coupling procedures outlined. Several tables are given both to illustrate the particular validity of the finite grid method and for use in the coupling procedure.
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