A new performance based method for design and maintenance of reinforced concrete structures

Colleen Green, Sree Nanukuttan, P. A. Muhammed Basheer

    Research output: Contribution to conferencePaper

    Abstract

    Best concrete research paper by a student - Research has shown that the cost of managing structures puts high strain on the infrastructure budget, with
    estimates of over 50% of the European construction budget being dedicated to repair and maintenance. If reinforced concrete
    structures are not suitably designed and adequately maintained, their service life is compromised, resulting in the full economic
    value of the investment not realised. The issue is more prevalent in coastal structures as a result of combinations of aggressive
    actions, such as those caused by chlorides, sulphates and cyclic freezing and thawing.
    It is a common practice nowadays to ensure durability of reinforced concrete structures by specifying a concrete mix and a
    nominal cover at the design stage to cater for the exposure environment. This in theory should produce the performance required
    to achieve a specified service life. Although the European Standard EN 206-1 specifies variations in the exposure environment,
    it does not take into account the macro and micro climates surrounding structures, which have a significant influence on their
    performance and service life. Therefore, in order to construct structures which will perform satisfactorily in different exposure
    environments, the following two aspects need to be developed: a performance based specification to supplement EN 206-1
    which will outline the expected performance of the structure in a given environment; and a simple yet transferrable procedure
    for assessing the performance of structures in service termed KPI Theory. This will allow the asset managers not only to design
    structures for the intended service life, but also to take informed maintenance decisions should the performance in service fall
    short of what was specified. This paper aims to discuss this further.
    Original languageEnglish
    Publication statusPublished - 28 Aug 2014
    EventCivil Engineering Research in Ireland Conference (CERAI) - QUB, Belfast, United Kingdom
    Duration: 28 Aug 201429 Aug 2014

    Conference

    ConferenceCivil Engineering Research in Ireland Conference (CERAI)
    CountryUnited Kingdom
    CityBelfast
    Period28/08/201429/08/2014

    Fingerprint

    Concrete construction
    Service life
    Reinforced concrete
    Thawing
    Concrete mixtures
    Freezing
    Macros
    Durability
    Managers
    Repair
    Concretes
    Students
    Specifications
    Costs

    Keywords

    • asset management
    • performance specification
    • diffusion coefficient
    • durability testing
    • service life modelling

    Cite this

    Green, C., Nanukuttan, S., & Muhammed Basheer, P. A. (2014). A new performance based method for design and maintenance of reinforced concrete structures. Paper presented at Civil Engineering Research in Ireland Conference (CERAI), Belfast, United Kingdom.
    Green, Colleen ; Nanukuttan, Sree ; Muhammed Basheer, P. A. / A new performance based method for design and maintenance of reinforced concrete structures. Paper presented at Civil Engineering Research in Ireland Conference (CERAI), Belfast, United Kingdom.
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    abstract = "Best concrete research paper by a student - Research has shown that the cost of managing structures puts high strain on the infrastructure budget, withestimates of over 50{\%} of the European construction budget being dedicated to repair and maintenance. If reinforced concretestructures are not suitably designed and adequately maintained, their service life is compromised, resulting in the full economicvalue of the investment not realised. The issue is more prevalent in coastal structures as a result of combinations of aggressiveactions, such as those caused by chlorides, sulphates and cyclic freezing and thawing.It is a common practice nowadays to ensure durability of reinforced concrete structures by specifying a concrete mix and anominal cover at the design stage to cater for the exposure environment. This in theory should produce the performance requiredto achieve a specified service life. Although the European Standard EN 206-1 specifies variations in the exposure environment,it does not take into account the macro and micro climates surrounding structures, which have a significant influence on theirperformance and service life. Therefore, in order to construct structures which will perform satisfactorily in different exposureenvironments, the following two aspects need to be developed: a performance based specification to supplement EN 206-1which will outline the expected performance of the structure in a given environment; and a simple yet transferrable procedurefor assessing the performance of structures in service termed KPI Theory. This will allow the asset managers not only to designstructures for the intended service life, but also to take informed maintenance decisions should the performance in service fallshort of what was specified. This paper aims to discuss this further.",
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    Green, C, Nanukuttan, S & Muhammed Basheer, PA 2014, 'A new performance based method for design and maintenance of reinforced concrete structures', Paper presented at Civil Engineering Research in Ireland Conference (CERAI), Belfast, United Kingdom, 28/08/2014 - 29/08/2014.

    A new performance based method for design and maintenance of reinforced concrete structures. / Green, Colleen; Nanukuttan, Sree; Muhammed Basheer, P. A.

    2014. Paper presented at Civil Engineering Research in Ireland Conference (CERAI), Belfast, United Kingdom.

    Research output: Contribution to conferencePaper

    TY - CONF

    T1 - A new performance based method for design and maintenance of reinforced concrete structures

    AU - Green, Colleen

    AU - Nanukuttan, Sree

    AU - Muhammed Basheer, P. A.

    PY - 2014/8/28

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    N2 - Best concrete research paper by a student - Research has shown that the cost of managing structures puts high strain on the infrastructure budget, withestimates of over 50% of the European construction budget being dedicated to repair and maintenance. If reinforced concretestructures are not suitably designed and adequately maintained, their service life is compromised, resulting in the full economicvalue of the investment not realised. The issue is more prevalent in coastal structures as a result of combinations of aggressiveactions, such as those caused by chlorides, sulphates and cyclic freezing and thawing.It is a common practice nowadays to ensure durability of reinforced concrete structures by specifying a concrete mix and anominal cover at the design stage to cater for the exposure environment. This in theory should produce the performance requiredto achieve a specified service life. Although the European Standard EN 206-1 specifies variations in the exposure environment,it does not take into account the macro and micro climates surrounding structures, which have a significant influence on theirperformance and service life. Therefore, in order to construct structures which will perform satisfactorily in different exposureenvironments, the following two aspects need to be developed: a performance based specification to supplement EN 206-1which will outline the expected performance of the structure in a given environment; and a simple yet transferrable procedurefor assessing the performance of structures in service termed KPI Theory. This will allow the asset managers not only to designstructures for the intended service life, but also to take informed maintenance decisions should the performance in service fallshort of what was specified. This paper aims to discuss this further.

    AB - Best concrete research paper by a student - Research has shown that the cost of managing structures puts high strain on the infrastructure budget, withestimates of over 50% of the European construction budget being dedicated to repair and maintenance. If reinforced concretestructures are not suitably designed and adequately maintained, their service life is compromised, resulting in the full economicvalue of the investment not realised. The issue is more prevalent in coastal structures as a result of combinations of aggressiveactions, such as those caused by chlorides, sulphates and cyclic freezing and thawing.It is a common practice nowadays to ensure durability of reinforced concrete structures by specifying a concrete mix and anominal cover at the design stage to cater for the exposure environment. This in theory should produce the performance requiredto achieve a specified service life. Although the European Standard EN 206-1 specifies variations in the exposure environment,it does not take into account the macro and micro climates surrounding structures, which have a significant influence on theirperformance and service life. Therefore, in order to construct structures which will perform satisfactorily in different exposureenvironments, the following two aspects need to be developed: a performance based specification to supplement EN 206-1which will outline the expected performance of the structure in a given environment; and a simple yet transferrable procedurefor assessing the performance of structures in service termed KPI Theory. This will allow the asset managers not only to designstructures for the intended service life, but also to take informed maintenance decisions should the performance in service fallshort of what was specified. This paper aims to discuss this further.

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    M3 - Paper

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    Green C, Nanukuttan S, Muhammed Basheer PA. A new performance based method for design and maintenance of reinforced concrete structures. 2014. Paper presented at Civil Engineering Research in Ireland Conference (CERAI), Belfast, United Kingdom.