Failure assessment of lightly reinforced floor slabs. I: Experimental investigation

K. A. Cashell, A. Y. Elghazouli, B. A. Izzuddin

    Research output: Journal article publicationJournal articleAcademic researchpeer-review

    22 Citations (Scopus)

    Abstract

    This paper is concerned with the ultimate behavior of lightly reinforced concrete floor slabs under extreme loading conditions. Particular emphasis is given to examining the failure conditions of idealized composite slabs which become lightly reinforced in a fire situation as a result of the early loss of the steel deck. An experimental study is described which focuses on the response of two-way spanning floor slabs with various materials and geometric configurations. The tests enable direct assessment of the influence of a number of key parameters such as the reinforcement type, properties, and ratio on the ultimate response. The results also permit the development of simplified expressions that capture the influence of salient factors such as bond characteristics and reinforcement properties for predicting the ductility of lightly reinforced floor slabs. The companion paper complements the experimental observations with detailed numerical assessments of the ultimate response and proposes analytical models that predict failure of slab members by either reinforcement fracture or compressive crushing of concrete.

    Original languageEnglish
    Pages (from-to)977-988
    Number of pages12
    JournalJournal of Structural Engineering
    Volume137
    Issue number9
    DOIs
    Publication statusPublished - Sept 2011

    Keywords

    • Composite slabs
    • Composite steel/concrete
    • Ductility
    • Failure conditions
    • Lightly reinforced members
    • Reinforcement fracture

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Building and Construction
    • General Materials Science
    • Mechanics of Materials
    • Mechanical Engineering

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