Materials and Structures

, Volume 31, Issue 8, pp 530–535 | Cite as

Ductility requirements for redistribution of moments in reinforced concrete elements and a possible size effect

  • A. Pisanty
  • P. E. Regan
Scientific Reports

Abstract

The possible demand for ductility, allowing for the redistribution of moments in linear reinforced concrete elements is examined, based on the results of two series of experiments aimed at verifying the actual stress/strain state in the reinforcing bars, with the elements designed to carry loads under the assumption of a broad spectrum of redistribution of moments. The tests included a series of beam tests and slab test with respective slenderness ratios (γ) of 11.73 and 21.12; thus one important aspect ofthe size effect was investigated. The final results tend to support the assumption that the high ductility class steel suggested in the Eurocode 2 is suitable for elements under static loading

Keywords

Ductility High Strength Steel Beam Test Ultimate Moment Ductile Steel 

Résumé

On examine les besoins en ductilité permettant la redistribution des moments dans des éléments en béton armé, en se basant sur des résultats de deux séries d'essais ayant pour objectif de vérifier l'état de contrainte/déformation dans les aciers d'armature. Pour ces éléments conçus pour porter des charges, nous avons supposé un vaste spectre de redistribution des moments. Les essais ont été menées sur une série de poutres et une série de dalles, ayant des élancements (γ) respectifs de 11,73 et de 21,12, ce qui a permis d'explorer un aspect important de l'effet d'échelle. Les résultats tendent à justifier l'hypothèse qu'un acier de haute ductilité tel que suggéré dans Eurocode 2 convient pour des éléments sous chargement statique.

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References

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    EC2-Eurocode 2: Design of Concrete Structures, Part 1 (1992). General Rules and Rules for Buildings, DD ENV 1992-1-1:1992.Google Scholar
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    Pisanty, A. and Regan, P.E., ‘Ductility Considerations for Moments Redistribution in Slabs’, Research Report, The University of Westminster, London (in preparation), 1997.Google Scholar
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Copyright information

© RILEM 1998

Authors and Affiliations

  • A. Pisanty
    • 1
  • P. E. Regan
    • 2
  1. 1.Faculty of Civil Engineering, TechnionHaifaIsrael
  2. 2.Faculty of the EnvironmentUniversity of WestminsterLondonUK

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