An experimental study of crack development in flexural reinforced concrete members

Annette Beedholm Rasmussen, Lars German Hagsten, Bjarke Würst Sørensen, Mikkel Skov, Peter Kolt Rasmussen

    Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearchpeer-review

    Abstract

    This paper presents the results of an experimental program of eight reinforced concrete beams carried out in order to investigate the development of cracks related to flexure. To be able to investigate possible size effects with respect to cracking, beams of two different depths were tested. The crack development was continuously measured based on digital image correlation. From observation of the tests, two crack systems was identified; the primary flexural cracks and local secondary cracks. The development of these two crack systems with respect to increasing load, within the service load range, was analyzed and illustrated. The analysis showed different characteristics for the two crack types depending on the depth of the members. The measured average crack spacings and crack widths of the the primary flexural cracks showed a linear proportionality to the member depth. The measured crack spacings, for both crack systems, were compared to existing tests as well as selected models estimating flexural cracking.
    Translated title of the contributionEn eksperimentel undersøgelse af revneudvikling i bøjningspåvirkede betonbjælker
    Original languageEnglish
    Title of host publicationIABSE Conference, Vancouver 2017 : Engineering the Future - Report
    Number of pages8
    PublisherInternational Association for Bridge and Structural Engineering
    Publication date2017
    Pages3099-3106
    ISBN (Electronic)9783857481536
    Publication statusPublished - 2017
    Event39th IABSE Symposium – Engineering the Future - The Westin Bayshore Hotel & Conference Center, Vancouver, Canada
    Duration: 21 Sept 201723 Sept 2017
    https://www.iabse2017.org/

    Conference

    Conference39th IABSE Symposium – Engineering the Future
    Location The Westin Bayshore Hotel & Conference Center
    Country/TerritoryCanada
    CityVancouver
    Period21/09/201723/09/2017
    Internet address
    SeriesI A B S E Symposium Report
    ISSN2221-3783

    Keywords

    • Cracking in flexural members
    • Modeling of reinforced concrete
    • Serviceability
    • Spacing of cracks
    • Test results
    • Width of cracks

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