Matériaux et Construction

, Volume 10, Issue 3, pp 159–168 | Cite as

The idealization of scaffold couplers for performance tests and scaffold analysis

  • E. Lightfoot
  • D. Bhula
Article

Abstract

A scaffold coupler may be regarded as a short rigid member having multiple elastic connections at both or at one of its ends. The elastic properties need to be determined experimentally; suitable tests are described. Results are used for establishing matrices for unsymmetrical and symmetrical right angle couplers and for symmetrical swivel couplers. An example is given of the use of scaffold coupler matrices in calculations for the elastic instability strength of a three-storey scaffold tower.

Keywords

Coupler Rotational Stiffness Coupler Characteristic Elastic Instability Angle Coupler 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Résumé

Un raccord d'échaffaudage peut être considéré comme un court membre rigide possédant des connexions élastiques multiples à l'une ou à chacune de ses extrémités. Les propriétés élastiques demandent a être déterminées expérimentalement et on décrit des essais appropriés. On s'est servi des résultats pour établir des matrices pour des raccords orthogonaux symétriques et asymétriques, ainsi que des raccords articulés symétriques. On donne un exemple de l'utilisation de ces matrices pour le calcul de la résistance d'un échaffaudage-tour à trois étages.

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References

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    Lightfoot E., Le Messurier A.—Elastic analysis of frameworks with elastic connections. J. Struct. Div. A.S.C.E., June 1974.Google Scholar
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    Lightfoot E., Le Messurier A.—Instability of space frames having elastically connected and offset members. 2nd International Conference on Space Structures, Guilford, U.K., Sept. 1975.Google Scholar
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    Livesley R. K.—Matrix methods in structural analysis. Pergamon Press, Oxford, U.K., 1964.Google Scholar
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    British Standards Institution.Draft standard for couplers and accessories for working scaffolds made of steel tubes—requirements and test procedures. Document 75/12712 D.C., November 1975.Google Scholar
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    Harung H., Lightfoot E., Duggan D.—The strength of scaffold towers under vertical loading. The Structural Engineer, January 1975.Google Scholar
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    Lightfoot E., Bhula D. N.—A test rig for scaffold couplers, Materials and Structures. Research and Testing. vol. 10, no 57, May–June 1977.Google Scholar

Copyright information

© Secrétariat de Rédaction 1977

Authors and Affiliations

  • E. Lightfoot
    • 1
  • D. Bhula
    • 1
  1. 1.University of OxfordOxfordUK

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