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    Publications

    Papers in International JournalsChapters/ Papers in International BooksChapters/ Papers in National BooksCommunications in International ConferencesCommunications in National ConferencesMSc ThesesBooksProceedingsPatentsTechnical/ Scientific ReportsPhD Theses

    Assessing the Life Cycle of Existing Maritime Structures – Application to a Harbour Bridge in Porto Port

    TitleAssessing the Life Cycle of Existing Maritime Structures – Application to a Harbour Bridge in Porto Port
    Publication TypeCommunications in International Conferences
    Year of Publication2017
    AuthorsPereira D., Moreira V. I., Camões A., and Matos J. C.
    Abstract

    Since the construction industry is the one that bears most expenses,
    both in financial and environmental terms, it is of the upmost importance that
    these expenses originate a product with a long term exploitation, so as to mitigate
    them. Having this problem in consideration, in this paper the bridge located in the
    north of Portugal, near Porto, in the oil tanker terminal at the Leixões port was
    studied. This structure is located in one of the most aggressive environments for
    concrete structures, a maritime zone. The most accepted durability models in the
    country, related to deterioration induced by sea chlorides penetration, were then
    implemented. Thereby, it was possible to identify which model better reflects
    reality, since the structure in analysis is now at the end of its lifetime, after
    50 years of service and shows advanced degradation due to chloride attack.
    In the context of this work, the structure and the test methods relevant to the
    theme being studied were described by inspection reports and in situ test results,
    made available by the Douro and Viana do Castelo Port Authority. From this data it
    was possible to study the structure deterioration by introducing them into durability
    models. These models range from prescriptive to performance based approaches,
    being possible to identify, from the later ones, a deterministic model, based on the
    Model Code 2010, a semi-probabilistic based on the E465 specification from the
    Portuguese National Laboratory for Civil Engineering (LNEC) and two probabilistic
    models, based on the same standards, for which a computer code was
    developed during this work. Through these deterioration prediction tools, different
    project scenarios were established, originating a list of minimal concrete covers to
    ensure 100 years of lifetime to a structure built in the studied exposure zone.

    Conference NameHigh Tech Concrete: Where Technology and Engineering Meet
    JournalProceedings of the 2017 fib Symposium
    Pagination1707-1714
    Date Published2017-08-06
    PublisherSpringer
    Conference LocationMaastricht, The Netherlands
    ISBN978-3-319-59471-2
    DOI10.1007/978-3-319-59471-2_196
    URLhttps://link.springer.com/chapter/10.1007/978-3-319-59471-2_196
    KeywordsDeterioration mechanism, Deterministic and probabilistic models, Life cycle analysis, Maritime exposure, Performance assessment
    RightsrestrictedAccess
    Peer reviewedyes
    Statuspublished
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    About CTAC

    The Centre for Territory, Environment and Construction (CTAC) is a research unit of the School of Engineering of University of Minho (UMinho), recognised by the “FCT – Fundação para a Ciência e Tecnologia” (Foundation for Science and Technology), associated to the Department of Civil Engineering (DEC), with whom it shares resources and namely human resources.

    Currently CTAC aggregates 25 researchers holding a PhD of which 20 are faculty professors of the Civil Engineering Department. Read more


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    Campus de Azurém
    4800-058 Guimarães, Portugal

    Phone: + 351 253 510 200 (517 206)
    Fax: + 351 253 510 217

    Email: geral@ctac.uminho.pt


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