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Modelling of thermally induced cracking of a concrete buttress dam
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Concrete Structures.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Concrete Structures.ORCID iD: 0000-0003-3586-8988
2008 (English)In: Nordic Concrete Research, ISSN 0800-6377, Vol. 38, 69-88 p.Article in journal (Refereed) Published
Abstract [en]

Some of the larger hydropower dams in Sweden are buttress dams, consisting of up to 100 concrete monoliths formed by a front plate with a supporting buttress. Cracks have been observed in some dams, through the buttresses and at the base close to the rock foundation. The combined effects of restrained thermal displacements and loads caused by water are studied through finite element analysis. The results demonstrate the use of a non-linear material model and show that it is possible to follow the formation and propagation of the cracks. The analyses indicate that thermal stresses in combination with the loads caused by external water pressure are the reason for the cracking.

Place, publisher, year, edition, pages
2008. Vol. 38, 69-88 p.
Keyword [en]
Buttress dam, cracking, finite element model, non-linear material properties
National Category
Infrastructure Engineering
Identifiers
URN: urn:nbn:se:kth:diva-58990OAI: oai:DiVA.org:kth-58990DiVA: diva2:477048
Note
QC 20120113Available from: 2012-01-12 Created: 2012-01-09 Last updated: 2017-12-08Bibliographically approved

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