A THEORETICAL AND AN EXPERIMENTAL INVESTIGATION IN THE TWISTLESS BEHAVIOUR OF SLAB-BEAMS PANELS

Auteurs-es

  • N CHIKH Université Mentouri Constantine
  • J HARROP University of Leeds

Mots-clés :

slab, beam/slab stiffness ratio, aspect ratio, twistless behaviour, small scale models, dalle, rapport de rigidité poutre/dalle, rapport de portée, comportement non-torsionel, modèles réduits

Résumé

A finite element package PAFEC was used to analyse both an internal panel of a uniformly loaded slab continuous over a rectangular grid of beams simply supported at their intersections, and a similar but single panel for various aspect ratios and various adjacent beam stiffness relationships. The object has been to determine values of the adjacent beam/slab stiffness ratios (g1-g2) for which the distribution of the bending moments across the slabs in the two orthogonal directions is uniform, as is the load distribution on the supporting beams. These particular cases of structural behaviour, identified as the twistless cases, could be   exploited  for developing an alternative design procedure for slab-beam systems. Several small scale slab-beam models with twistless beam/slab ratios have been tested to determine their behaviour under the action of a uniformly distributed load. The test results are presented and compared to the theoretical values.

Bibliographies de l'auteur-e

N CHIKH, Université Mentouri Constantine

Département  de Génie Civil

J HARROP, University of Leeds

Department of Civil Engineering

Références

- Wood R.H., "Studies in Composite Action, Part 2: The Interaction of Floor and Beams in Multistorey Buildings", N.B.S, paper N°22, H.M.S.O., London, (1955).

- Ockleston J.A., "Load tests on a three storey reinforced concrete building in Johannesburg", The Structural Engineer, Vol. 33, (1955).

- Harrop J., "Analysis of Stress in Steel-Framed and Reinforced concrete structures", PhD Thesis, University of Leeds, (1955).

- Khan M.A., "Elastic Interaction between floors and Frames", M. Phil Thesis, University of London, (1968).

- Chikh N., "Full Composite Action In Slab-Beam Systems And The Development Of Design Procedures", PhD Thesis, University of Leeds, (1988).

- PAFEC 75, Theory, Results and Data Preparation, PAFEC Ltd, Nottingham, (1978).

- American Concrete Institute, Building code Requirements for Reinforced Concrete, ACI(318-89), Detroit, (1989).

- British Standard Institution, Structural Use of Concrete, Part 1: Code of Practice for Design and Construction, London, (1985).

- Chikh N., "Study of the Structural Behaviour in Slab-Beams", Proceedings of the EASEC-6 Conference, Taipei, Taiwan, (1998).

- Litle W.A., Cohen E., Somerville G., "Accuracy of Structural Models", Models for Concrete Structures, ACI SP-24, Detroit, (1970).

- Hillerborg A.,"Strip Method of Design, Viewpoint Publication, Cement and Concrete Association, London, (1974).

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Publié-e

2001-12-01

Comment citer

CHIKH, N., & HARROP, J. (2001). A THEORETICAL AND AN EXPERIMENTAL INVESTIGATION IN THE TWISTLESS BEHAVIOUR OF SLAB-BEAMS PANELS. Sciences & Technologie. B, Sciences De l’ingénieur, (1), 85–95. Consulté à l’adresse https://revue.umc.edu.dz/b/article/view/1874

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