Thermal cracking of a concrete arch dam: Microplane approach

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschung

Abstract

Dams in cold climates are subjected to significant temperature variations throughout their long service life. This, along with restraint of volume changes, can lead to the development of high stresses and possibly cracking. This study presents finite element (FE) analyses of a concrete arch dam subjected to the seasonal temperature variations in northern Sweden. In this study, the concrete dam is modelled considering linear as well as non-linear material behavior subjected to gravity, static and thermal loads. In the non-linear analysis, concrete was modelled with microplane material model. Also, in the non-linear analysis, the contact between the dam and the foundation was modelled with the frictional contact contrary to the linear analysis where this contact is modelled with multipoint constraint approach. The results showed that the dam undergoes significant displacements due to the thermal load and the tensile stresses have exceeded the tensile strength of the concrete in a large portion of the dam body. This resulted in development of prominent cracks at the downstream surface of the dam.
Originalspracheenglisch
Titel14th ICOLD International Benchmark Workshop on Numerical Analysis of Dams
Redakteure/-innenRichard Malm, Manouchehr Hassanzadeh , Rikard Hellgren
Herausgeber (Verlag)KTH Royal Institute of Technology, School of Architecture and the Built Environment, Department of Civil and Architectural Engineering Division of Building Materials, SE-100 44 Stockholm
Seiten198-207
PublikationsstatusVeröffentlicht - 2018
Veranstaltung14th International ICOLD Benchmark Workshop on Numerical Analysis of Dams - Stockholm, Schweden
Dauer: 6 Sep 20178 Sep 2017

Publikationsreihe

NameTRITA-ABE-RPT
Band1802001

Workshop

Workshop14th International ICOLD Benchmark Workshop on Numerical Analysis of Dams
LandSchweden
OrtStockholm
Zeitraum6/09/178/09/17

Fingerprint

Arch dams
Concrete dams
Dams
Nonlinear analysis
Thermal load
Concretes
Tensile stress
Service life
Gravitation
Tensile strength
Hot Temperature
Cracks
Temperature

Schlagwörter

    ASJC Scopus subject areas

    • !!Civil and Structural Engineering

    Dies zitieren

    Shahriari, S., Lora, F., & Zenz, G. (2018). Thermal cracking of a concrete arch dam: Microplane approach. in R. Malm, M. Hassanzadeh , & R. Hellgren (Hrsg.), 14th ICOLD International Benchmark Workshop on Numerical Analysis of Dams (S. 198-207). (TRITA-ABE-RPT; Band 1802001). KTH Royal Institute of Technology, School of Architecture and the Built Environment, Department of Civil and Architectural Engineering Division of Building Materials, SE-100 44 Stockholm.

    Thermal cracking of a concrete arch dam : Microplane approach. / Shahriari, Shervin; Lora, Florian; Zenz, Gerald.

    14th ICOLD International Benchmark Workshop on Numerical Analysis of Dams. Hrsg. / Richard Malm; Manouchehr Hassanzadeh ; Rikard Hellgren. KTH Royal Institute of Technology, School of Architecture and the Built Environment, Department of Civil and Architectural Engineering Division of Building Materials, SE-100 44 Stockholm, 2018. S. 198-207 (TRITA-ABE-RPT; Band 1802001).

    Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschung

    Shahriari, S, Lora, F & Zenz, G 2018, Thermal cracking of a concrete arch dam: Microplane approach. in R Malm, M Hassanzadeh & R Hellgren (Hrsg.), 14th ICOLD International Benchmark Workshop on Numerical Analysis of Dams. TRITA-ABE-RPT, Bd. 1802001, KTH Royal Institute of Technology, School of Architecture and the Built Environment, Department of Civil and Architectural Engineering Division of Building Materials, SE-100 44 Stockholm, S. 198-207, 14th International ICOLD Benchmark Workshop on Numerical Analysis of Dams, Stockholm, Schweden, 6/09/17.
    Shahriari S, Lora F, Zenz G. Thermal cracking of a concrete arch dam: Microplane approach. in Malm R, Hassanzadeh M, Hellgren R, Hrsg., 14th ICOLD International Benchmark Workshop on Numerical Analysis of Dams. KTH Royal Institute of Technology, School of Architecture and the Built Environment, Department of Civil and Architectural Engineering Division of Building Materials, SE-100 44 Stockholm. 2018. S. 198-207. (TRITA-ABE-RPT).
    Shahriari, Shervin ; Lora, Florian ; Zenz, Gerald. / Thermal cracking of a concrete arch dam : Microplane approach. 14th ICOLD International Benchmark Workshop on Numerical Analysis of Dams. Hrsg. / Richard Malm ; Manouchehr Hassanzadeh ; Rikard Hellgren. KTH Royal Institute of Technology, School of Architecture and the Built Environment, Department of Civil and Architectural Engineering Division of Building Materials, SE-100 44 Stockholm, 2018. S. 198-207 (TRITA-ABE-RPT).
    @inproceedings{5d4465ddbbec407fbf2fada1f20bdacf,
    title = "Thermal cracking of a concrete arch dam: Microplane approach",
    abstract = "Dams in cold climates are subjected to significant temperature variations throughout their long service life. This, along with restraint of volume changes, can lead to the development of high stresses and possibly cracking. This study presents finite element (FE) analyses of a concrete arch dam subjected to the seasonal temperature variations in northern Sweden. In this study, the concrete dam is modelled considering linear as well as non-linear material behavior subjected to gravity, static and thermal loads. In the non-linear analysis, concrete was modelled with microplane material model. Also, in the non-linear analysis, the contact between the dam and the foundation was modelled with the frictional contact contrary to the linear analysis where this contact is modelled with multipoint constraint approach. The results showed that the dam undergoes significant displacements due to the thermal load and the tensile stresses have exceeded the tensile strength of the concrete in a large portion of the dam body. This resulted in development of prominent cracks at the downstream surface of the dam.",
    keywords = "Thermal, structural, Concrete arch dam, Microplane",
    author = "Shervin Shahriari and Florian Lora and Gerald Zenz",
    year = "2018",
    language = "English",
    series = "TRITA-ABE-RPT",
    publisher = "KTH Royal Institute of Technology, School of Architecture and the Built Environment, Department of Civil and Architectural Engineering Division of Building Materials, SE-100 44 Stockholm",
    pages = "198--207",
    editor = "Richard Malm and {Hassanzadeh }, {Manouchehr } and Rikard Hellgren",
    booktitle = "14th ICOLD International Benchmark Workshop on Numerical Analysis of Dams",
    address = "Sweden",

    }

    TY - GEN

    T1 - Thermal cracking of a concrete arch dam

    T2 - Microplane approach

    AU - Shahriari, Shervin

    AU - Lora, Florian

    AU - Zenz, Gerald

    PY - 2018

    Y1 - 2018

    N2 - Dams in cold climates are subjected to significant temperature variations throughout their long service life. This, along with restraint of volume changes, can lead to the development of high stresses and possibly cracking. This study presents finite element (FE) analyses of a concrete arch dam subjected to the seasonal temperature variations in northern Sweden. In this study, the concrete dam is modelled considering linear as well as non-linear material behavior subjected to gravity, static and thermal loads. In the non-linear analysis, concrete was modelled with microplane material model. Also, in the non-linear analysis, the contact between the dam and the foundation was modelled with the frictional contact contrary to the linear analysis where this contact is modelled with multipoint constraint approach. The results showed that the dam undergoes significant displacements due to the thermal load and the tensile stresses have exceeded the tensile strength of the concrete in a large portion of the dam body. This resulted in development of prominent cracks at the downstream surface of the dam.

    AB - Dams in cold climates are subjected to significant temperature variations throughout their long service life. This, along with restraint of volume changes, can lead to the development of high stresses and possibly cracking. This study presents finite element (FE) analyses of a concrete arch dam subjected to the seasonal temperature variations in northern Sweden. In this study, the concrete dam is modelled considering linear as well as non-linear material behavior subjected to gravity, static and thermal loads. In the non-linear analysis, concrete was modelled with microplane material model. Also, in the non-linear analysis, the contact between the dam and the foundation was modelled with the frictional contact contrary to the linear analysis where this contact is modelled with multipoint constraint approach. The results showed that the dam undergoes significant displacements due to the thermal load and the tensile stresses have exceeded the tensile strength of the concrete in a large portion of the dam body. This resulted in development of prominent cracks at the downstream surface of the dam.

    KW - Thermal

    KW - structural

    KW - Concrete arch dam

    KW - Microplane

    M3 - Conference contribution

    T3 - TRITA-ABE-RPT

    SP - 198

    EP - 207

    BT - 14th ICOLD International Benchmark Workshop on Numerical Analysis of Dams

    A2 - Malm, Richard

    A2 - Hassanzadeh , Manouchehr

    A2 - Hellgren, Rikard

    PB - KTH Royal Institute of Technology, School of Architecture and the Built Environment, Department of Civil and Architectural Engineering Division of Building Materials, SE-100 44 Stockholm

    ER -