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- W2750654141 abstract "Dams located in the Nordic countries are subjected to large temperature variations between summer and winter. In the northern part of Sweden dams are subjected to temperature variations of up to 60-70 °C. This often results in cracking of the concrete and causes challenges in the design of new dams as well as maintenance of existing dams.Seasonal temperature variation has been found to be the dominant cause of cracking in large, massive concrete structures. The difference in temperature of the water on the upstream side, and the ambient air on the downstream side, causes a temperature gradient in the dam which resultsin non-uniform expansion and contraction of the concrete.This master dissertation is a part of an initiative from the ICOLD-committee Computational Aspects of Dam Analysis and Design with the aim to find a suitable FE-methodology to better analyse these kinds of phenomena.An arch dam located in northern Sweden is analysed in order to see how temperature variations would influence the displacement and cracking of the dam. The work consisted of three parts which analyses the temperature distribution, the displacement and the crack propagation of the dam. The finite element application Abaqus 2016 was used for all of the analyses.The analyses conclude that the seasonal temperature variations have a significant in influence on the structural behaviour of arch dams in colder climates. As the water temperature do not go below 0 °C, cold winters can have a major effect on arch dams in regards to deformation and cracking." @default.
- W2750654141 created "2017-09-15" @default.
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- W2750654141 date "2017-01-01" @default.
- W2750654141 modified "2023-09-23" @default.
- W2750654141 title "Finite element analysis of cracking of concrete arch dams due to seasonal temperature variation" @default.
- W2750654141 hasPublicationYear "2017" @default.
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