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Assessing the structural safety of cracked concrete dams subjectedto harsh environment
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Concrete Structures.ORCID iD: 0000-0003-3586-8988
Vattenfall.
Vattenfall.
Vattenfall.
2019 (English)In: Sustainable and Safe Dams Around the World / [ed] Tournier, Bennett & Bibeau, Canada, 2019, p. 383-397, article id 33Conference paper, Published paper (Refereed)
Abstract [en]

As the dams are aging and the design requirements continuously increase, complexanalyses may be required that consider aspects previously excluded in the original design.Due to the harsh environment in cold regions with significant seasonal temperature variations,many con- crete dams have cracked. The development of cracks may result in internal failuremodes, where parts of the dam may fail. These internal failure modes are thereby primarily governedby the material failure of reinforcement and concrete. When assessing cracked hydraulicstructures, how- ever, many design guidelines are based on global safety factors for stability failuremodes, i.e. overturning and sliding, while the partial coefficient methods are used for thestructural design related to material failures. By using a developed design methodology basedon finite element analysis, all these failure modes but also combinations of different failuremodes can be consid- ered. In this paper, the design methodology is presented and implementedto assess the structural safety of a cracked concrete spillway section. The result provides supportfor dam owners on how to manage pillars of concrete dams subjected to extensive cracking.

Place, publisher, year, edition, pages
Canada, 2019. p. 383-397, article id 33
Keywords [en]
concrete dams, cracks, FEA, structural safety, harsh environment
National Category
Infrastructure Engineering
Research subject
Civil and Architectural Engineering, Concrete Structures
Identifiers
URN: urn:nbn:se:kth:diva-261148ISBN: 978-0-367-33422-2 (print)OAI: oai:DiVA.org:kth-261148DiVA, id: diva2:1356686
Conference
ICOLD 2019 Symposium, (ICOLD 2019), June 9-14, 2019, Ottawa, Canada
Note

QC 20191007

Available from: 2019-10-02 Created: 2019-10-02 Last updated: 2019-10-07Bibliographically approved

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Malm, Richard

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf