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dc.contributor.authorLeitão, N. S.pt_BR
dc.contributor.authorAzevedo, N.pt_BR
dc.contributor.authorSantos, E.pt_BR
dc.contributor.authorBraga Farinha, M. L.pt_BR
dc.contributor.authorCâmara, R.pt_BR
dc.description.abstractThe concrete arch dam proposed for the 14th International Benchmark Workshop on Numerical Analysis (theme A) was numerically studied using computational codes purposely developed by the authors for dam analysis. Given that the codes use 2nd order 20-node brick elements, the concrete arch dam finite element mesh given as input by the organizing committee had to be adapted. The arch dam geometry follows closely the given input node coordinates. In order to ease the generation process, the foundation finite element mesh was totally redefined. The thermal analysis was done using a transient analysis model. A linear mechanical analysis including the gravity load, the hydrostatic pressure and the extreme temperature variations resulting from the thermal analysis was carried out. Then, a nonlinear model was considered at the dam/foundation interface in order to better simulate its behaviour, given that the arch dam is excavated into the rock where the support is made to act like a hinge. Finally, a nonlinear finite element analysis was carried out with a two scalar damage model at the brick finite elements representing the arch dam body. In this latter nonlinear analysis, a smeared reinforcement model was adopted at the upstream and downstream arch dam faces, following a linear elastic model. A discrete crack model was also analysed. Results of both thermal and mechanical analyses are presented and discussed.pt_BR
dc.publisherKTH Royal Institute of Technologypt_BR
dc.subjectArch damspt_BR
dc.subjectThermal analysispt_BR
dc.subjectCrack analysispt_BR
dc.subjectFinite element analysispt_BR
dc.titleThermal cracking computational analysis of a concrete arch dampt_BR
dc.identifier.conftitleICOLD - 14th International Benchmark Workshop on Numerical Analysis of Damspt_BR
Appears in Collections:DBB/NO - Comunicações a congressos e artigos de revista

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