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Annualised collapse risk of soft-storey building with precast RC columns in Australia

  • H. H. Tsang
  • , E. Lumantarna
  • , N. T.K. Lam
  • , J. L. Wilson
  • , E. Gad

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

    Abstract

    Collapse prevention is the primary goal of earthquake-resistant structural design; hence, the annual probability of collapse should be taken as a governing design parameter or performance indicator. Risk assessment can also be conducted on existing structures to inform whether the decision of seismic retrofitting is justified or not. One major challenge in collapse risk assessment is to reliably model the non-linear behaviour of structural response. This study features the rocking response behaviour of precast Reinforced Concrete (RC) columns based on results from previous field testing on parts of a real building and supplementary shake-table tests of rocking behaviours. Realistic estimates of the displacement capacity were made for constructing collapse fragility functions, which werethen combined with the ground motion recurrence relationships of Melbourne, Australia for calculation of the annualised probability of collapse. Calculations were then repeated for a suite of typical precast soft-storey buildings, with considerations given to a diversity of site conditions.

    Original languageEnglish
    Title of host publicationMechanics of Structures and Materials
    Subtitle of host publicationAdvancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016
    EditorsHong Hao, Chunwei Zhang
    PublisherCRC Press/Balkem
    Pages1681-1686
    Number of pages6
    Edition1st
    ISBN (Electronic)9781315226460
    ISBN (Print)9781138029934, 9781138029941
    Publication statusPublished - 2017
    Event24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2016 - Perth, Australia
    Duration: 6 Dec 2016 → 9 Dec 2016

    Conference

    Conference24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2016
    Country/TerritoryAustralia
    CityPerth
    Period6/12/16 → 9/12/16

    Keywords

    • Concrete testing
    • Earthquake effects
    • Earthquake engineering
    • Mechanics
    • Reinforced concrete
    • Risk assessment
    • Collapse fragilities
    • Displacement capacity
    • Earthquake resistant
    • Melbourne , Australia
    • Nonlinear behaviours
    • Performance indicator
    • Precast reinforced concrete
    • Seismic retrofitting
    • Structural design

    ASJC Scopus subject areas

    • Mechanics of Materials
    • Civil and Structural Engineering

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