Design of shallow foundations under tensile loading for transmission line towers: An overview |
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| Authors: | M.P. Pacheco F.A.B. Danziger C. Pereira Pinto |
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| Affiliation: | aUniversity of the State of Rio de Janeiro, R. Inglês de Souza 334, Jardim Botânico, RJ, 22460-110, Brazil;bFederal University of Rio de Janeiro, R. Vice-Gov. Rubens Berardo 65, apt 304, Bl 2, Gávea, RJ, 22451-070, Brazil;cFederal Center of Technological Education, CEFET/RJ, and PCE Eng., R. Santa Clara 248, apt 401, Copacabana, RJ, 22041-010, Brazil |
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| Abstract: | Tensioned foundations are common in civil engineering applications such as transmission towers, harbors, offshore structures, basement slabs under pressure, industrial equipment, etc. Procedures for the design of tensioned foundations are discussed in this paper, including specific recommendations for more common transmission tower foundations. Starting from a distinction between shallow and deep modes of failure, the paper presents the most common failure mechanisms for shallow failure in tension, including procedures for calculation of foundation tensile capacity under vertical and inclined loading. Emphasis is given to the influence of the strength of the compacted backfill compared to the strength of the natural soil, including presentation of results of full-scale loading tests. |
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| Keywords: | Tensile capacity Shallow foundation Failure modes Inclined loading |
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