Investigations on Existing Concrete Cantilever Walls Subjected to Reinforcement Corrosion

Maciej Kwapisz, Alois Vorwagner, Matthias Rebhan, Franz Tschuchnigg

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

Recently fatal collapses of reinforced cantilever walls occurred in the
Alpine Region. Investigations on the collapsed walls showed that these constructions
suffered from corrosion damage along the horizontal construction
joint between the foundation and the vertical concrete wall, which is also the
most sensitive region with respect to stresses. The detection of corrosion is a
difficult task, since the critical areas are not easy to access, because they are
situated on the backfill side of the structure and detection of corroded reinforcement
elements is still a very challenging task.
This paper deals with a numerical sensitivity study based on finite element
analysis (FEA) of existing cantilever walls with the objective to identify reliable
detection methods. Different simulations of corrosion scenarios and corrosion
states at the critical construction joint were taken into account.
Furthermore the possibilities of damage detection using non-direct methods
(deformation measurement, inclination and concrete strains for mobile or fix
stationary installed sensors) are evaluated.
It is demonstrated that the possibility of non-direct damage detection is
limited to certain conditions. These structures are very rigid, and have many
influencing factors which makes it difficult to identify certain damages. Further
investigations on damage detection of concrete retaining structures are needed.
Original languageEnglish
Title of host publicationHigh Tech Concrete: Where Technology and Engineering Meet
Subtitle of host publicationProceeding of the 2017 fib Symposium
Place of PublicationDelft
PublisherSpringer International Publishing AG
Pages2083-2091
Number of pages9
ISBN (Electronic)978-3-319-59471-2
ISBN (Print)978-3-319-59470-5
DOIs
Publication statusPublished - 3 Sep 2017

Keywords

    Fields of Expertise

    • Sustainable Systems

    Cite this

    Kwapisz, M., Vorwagner, A., Rebhan, M., & Tschuchnigg, F. (2017). Investigations on Existing Concrete Cantilever Walls Subjected to Reinforcement Corrosion. In High Tech Concrete: Where Technology and Engineering Meet: Proceeding of the 2017 fib Symposium (pp. 2083-2091). Delft: Springer International Publishing AG . https://doi.org/10.1007/978-3-319-59471-2

    Investigations on Existing Concrete Cantilever Walls Subjected to Reinforcement Corrosion. / Kwapisz, Maciej; Vorwagner, Alois; Rebhan, Matthias; Tschuchnigg, Franz.

    High Tech Concrete: Where Technology and Engineering Meet: Proceeding of the 2017 fib Symposium. Delft : Springer International Publishing AG , 2017. p. 2083-2091.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

    Kwapisz, M, Vorwagner, A, Rebhan, M & Tschuchnigg, F 2017, Investigations on Existing Concrete Cantilever Walls Subjected to Reinforcement Corrosion. in High Tech Concrete: Where Technology and Engineering Meet: Proceeding of the 2017 fib Symposium. Springer International Publishing AG , Delft, pp. 2083-2091. https://doi.org/10.1007/978-3-319-59471-2
    Kwapisz M, Vorwagner A, Rebhan M, Tschuchnigg F. Investigations on Existing Concrete Cantilever Walls Subjected to Reinforcement Corrosion. In High Tech Concrete: Where Technology and Engineering Meet: Proceeding of the 2017 fib Symposium. Delft: Springer International Publishing AG . 2017. p. 2083-2091 https://doi.org/10.1007/978-3-319-59471-2
    Kwapisz, Maciej ; Vorwagner, Alois ; Rebhan, Matthias ; Tschuchnigg, Franz. / Investigations on Existing Concrete Cantilever Walls Subjected to Reinforcement Corrosion. High Tech Concrete: Where Technology and Engineering Meet: Proceeding of the 2017 fib Symposium. Delft : Springer International Publishing AG , 2017. pp. 2083-2091
    @inproceedings{b34cd4043819498eb4c106742beec3ac,
    title = "Investigations on Existing Concrete Cantilever Walls Subjected to Reinforcement Corrosion",
    abstract = "Recently fatal collapses of reinforced cantilever walls occurred in theAlpine Region. Investigations on the collapsed walls showed that these constructionssuffered from corrosion damage along the horizontal constructionjoint between the foundation and the vertical concrete wall, which is also themost sensitive region with respect to stresses. The detection of corrosion is adifficult task, since the critical areas are not easy to access, because they aresituated on the backfill side of the structure and detection of corroded reinforcementelements is still a very challenging task.This paper deals with a numerical sensitivity study based on finite elementanalysis (FEA) of existing cantilever walls with the objective to identify reliabledetection methods. Different simulations of corrosion scenarios and corrosionstates at the critical construction joint were taken into account.Furthermore the possibilities of damage detection using non-direct methods(deformation measurement, inclination and concrete strains for mobile or fixstationary installed sensors) are evaluated.It is demonstrated that the possibility of non-direct damage detection islimited to certain conditions. These structures are very rigid, and have manyinfluencing factors which makes it difficult to identify certain damages. Furtherinvestigations on damage detection of concrete retaining structures are needed.",
    keywords = "maintenance, Damage detection, Nonlinear FE analysis, Soil-structure interaction",
    author = "Maciej Kwapisz and Alois Vorwagner and Matthias Rebhan and Franz Tschuchnigg",
    year = "2017",
    month = "9",
    day = "3",
    doi = "10.1007/978-3-319-59471-2",
    language = "English",
    isbn = "978-3-319-59470-5",
    pages = "2083--2091",
    booktitle = "High Tech Concrete: Where Technology and Engineering Meet",
    publisher = "Springer International Publishing AG",
    address = "Switzerland",

    }

    TY - GEN

    T1 - Investigations on Existing Concrete Cantilever Walls Subjected to Reinforcement Corrosion

    AU - Kwapisz, Maciej

    AU - Vorwagner, Alois

    AU - Rebhan, Matthias

    AU - Tschuchnigg, Franz

    PY - 2017/9/3

    Y1 - 2017/9/3

    N2 - Recently fatal collapses of reinforced cantilever walls occurred in theAlpine Region. Investigations on the collapsed walls showed that these constructionssuffered from corrosion damage along the horizontal constructionjoint between the foundation and the vertical concrete wall, which is also themost sensitive region with respect to stresses. The detection of corrosion is adifficult task, since the critical areas are not easy to access, because they aresituated on the backfill side of the structure and detection of corroded reinforcementelements is still a very challenging task.This paper deals with a numerical sensitivity study based on finite elementanalysis (FEA) of existing cantilever walls with the objective to identify reliabledetection methods. Different simulations of corrosion scenarios and corrosionstates at the critical construction joint were taken into account.Furthermore the possibilities of damage detection using non-direct methods(deformation measurement, inclination and concrete strains for mobile or fixstationary installed sensors) are evaluated.It is demonstrated that the possibility of non-direct damage detection islimited to certain conditions. These structures are very rigid, and have manyinfluencing factors which makes it difficult to identify certain damages. Furtherinvestigations on damage detection of concrete retaining structures are needed.

    AB - Recently fatal collapses of reinforced cantilever walls occurred in theAlpine Region. Investigations on the collapsed walls showed that these constructionssuffered from corrosion damage along the horizontal constructionjoint between the foundation and the vertical concrete wall, which is also themost sensitive region with respect to stresses. The detection of corrosion is adifficult task, since the critical areas are not easy to access, because they aresituated on the backfill side of the structure and detection of corroded reinforcementelements is still a very challenging task.This paper deals with a numerical sensitivity study based on finite elementanalysis (FEA) of existing cantilever walls with the objective to identify reliabledetection methods. Different simulations of corrosion scenarios and corrosionstates at the critical construction joint were taken into account.Furthermore the possibilities of damage detection using non-direct methods(deformation measurement, inclination and concrete strains for mobile or fixstationary installed sensors) are evaluated.It is demonstrated that the possibility of non-direct damage detection islimited to certain conditions. These structures are very rigid, and have manyinfluencing factors which makes it difficult to identify certain damages. Furtherinvestigations on damage detection of concrete retaining structures are needed.

    KW - maintenance

    KW - Damage detection

    KW - Nonlinear FE analysis

    KW - Soil-structure interaction

    U2 - 10.1007/978-3-319-59471-2

    DO - 10.1007/978-3-319-59471-2

    M3 - Conference contribution

    SN - 978-3-319-59470-5

    SP - 2083

    EP - 2091

    BT - High Tech Concrete: Where Technology and Engineering Meet

    PB - Springer International Publishing AG

    CY - Delft

    ER -