Arching action strength enhancement in laterally-restrained slab strips

G.I.B. Rankin, A.E. Long

    Research output: Contribution to journalArticle

    78 Citations (Scopus)

    Abstract

    The behaviour and ultimate load capacity of laterally-restrained reinforced concrete slabs can be considerably enhanced by the development of arching or compressive membrane action. This paper presents a simple method for predicting the enhanced ultimate load capacity of laterally-restrained slab strips. The method is based on deformation theory and utilizes an elastic-plastic stress-strain criterion for concrete. The loads carried by bending and arching action are calculated separately and then added to give the total ultimate load capacity. A simple equivalent strip approach, based on a three-hinged arch analogy, allows for the degree of lateral restraint. The method of prediction has been validated by correlation with a wide range of test results from various sources.
    Original languageEnglish
    Pages (from-to)461-467
    Number of pages7
    JournalProceedings of the ICE - Structures and Buildings
    Volume122
    Issue number4
    Publication statusPublished - 01 Nov 1997

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