Modelling precast concrete piling for use in the geotechnical centrifuge

J. A. Knappett, K. O'Reilly, P. Gilhooley, C. Reid, K. Skeffington

    Research output: Chapter in Book/Report/Conference proceedingOther chapter contribution

    6 Citations (Scopus)

    Abstract

    This paper presents initial work developing a new 'micro-reinforced concrete' which can simultaneously model the stiffness and strength properties of reinforced concrete sections under bending and soil-structure interface shearing characteristics for use in centrifuge modelling. The model uses gypsum mortar as a scaled concrete and steel wire as reinforcement, from which singly-reinforced concrete beam-column sections 12.5 mm square with varying amounts of longitudinal and shear reinforcement were produced. Depending on the scaling factor employed, this section represents a wide range of prototype precast concrete piles from 250 mm square at 20-g to 1250 mm square at 100-g. A range of tests were conducted on the model sections to characterise their mechanical behaviour. The new concrete has a low modulus of rupture such that the models replicate ultimate strengths and failure modes of real concrete sections at prototype scales without exhibiting the significant over-strength commonly associated with small scale models
    Original languageEnglish
    Title of host publicationPhysical Modelling in Geotechnics
    Subtitle of host publicationproceedings of the 7th International Conference on Physical Modelling in Geotechnics (ICPMG 2010)
    EditorsLinda Seward
    Place of PublicationLondon
    PublisherCRC Press
    Pages141-146
    Number of pages6
    Volume1
    ISBN (Electronic)978-1-4665-5742-0
    ISBN (Print)978-0-415-59288-8
    DOIs
    Publication statusPublished - 2010
    Event7th International Conference on Physical Modelling in Geotechnics - Zurich, Switzerland
    Duration: 28 Jun 20101 Jul 2010
    http://www.icpmg2010.ch/finalprogramme

    Conference

    Conference7th International Conference on Physical Modelling in Geotechnics
    Abbreviated titleICPMG 2010
    CountrySwitzerland
    CityZurich
    Period28/06/101/07/10
    Internet address

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  • Cite this

    Knappett, J. A., O'Reilly, K., Gilhooley, P., Reid, C., & Skeffington, K. (2010). Modelling precast concrete piling for use in the geotechnical centrifuge. In L. Seward (Ed.), Physical Modelling in Geotechnics: proceedings of the 7th International Conference on Physical Modelling in Geotechnics (ICPMG 2010) (Vol. 1, pp. 141-146). CRC Press. https://doi.org/10.1201/b10554-18