Thermo-Mechanical Analysis of Mass Concrete Foundation Slabs at Early Age—Essential Aspects and Experiences from the FE Modelling
In this paper, the focus is placed on essential aspects of finite element modelling of thermo-mechanical behaviour of massive foundation slabs at early ages. Basic decision-making issues are discussed in this work: the potential need to explicitly consider the casting process in the modelling, the n...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/5/1815 |
| _version_ | 1797474579666436096 |
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| author | Aneta Smolana Barbara Klemczak Miguel Azenha Dirk Schlicke |
| author_facet | Aneta Smolana Barbara Klemczak Miguel Azenha Dirk Schlicke |
| author_sort | Aneta Smolana |
| collection | DOAJ |
| description | In this paper, the focus is placed on essential aspects of finite element modelling of thermo-mechanical behaviour of massive foundation slabs at early ages. Basic decision-making issues are discussed in this work: the potential need to explicitly consider the casting process in the modelling, the necessary size of the underlying soil to be modelled and the size of the FE mesh, and the need of considering daily changes of the environmental temperature and the temperature distribution over the depth of the soil. Next, the contribution of shrinkage to early age stresses, the role of the reinforcement, and the type of mechanical model are investigated. Comparative analyses aiming to investigate the most important aspects of the FE model and some possible simplifications with negligible effect on the results are made on the example of a massive foundation slab. Finally, the results are summarized with recommendations for creating the FE models of massive slabs at early ages. |
| first_indexed | 2024-03-09T20:33:07Z |
| format | Article |
| id | doaj.art-86a7560977eb4c93a70bd570da6ab42d |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T20:33:07Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-86a7560977eb4c93a70bd570da6ab42d2023-11-23T23:19:19ZengMDPI AGMaterials1996-19442022-02-01155181510.3390/ma15051815Thermo-Mechanical Analysis of Mass Concrete Foundation Slabs at Early Age—Essential Aspects and Experiences from the FE ModellingAneta Smolana0Barbara Klemczak1Miguel Azenha2Dirk Schlicke3Faculty of Civil Engineering, Silesian University of Technology, Akademicka 5, 44-100 Gliwice, PolandFaculty of Civil Engineering, Silesian University of Technology, Akademicka 5, 44-100 Gliwice, PolandISISE, Campus de Azurem, University of Minho, 4800-058 Guimarães, PortugalInstitute of Structural Concrete, Graz University of Technology, Lessingstraße 25/1, A-8010 Graz, AustriaIn this paper, the focus is placed on essential aspects of finite element modelling of thermo-mechanical behaviour of massive foundation slabs at early ages. Basic decision-making issues are discussed in this work: the potential need to explicitly consider the casting process in the modelling, the necessary size of the underlying soil to be modelled and the size of the FE mesh, and the need of considering daily changes of the environmental temperature and the temperature distribution over the depth of the soil. Next, the contribution of shrinkage to early age stresses, the role of the reinforcement, and the type of mechanical model are investigated. Comparative analyses aiming to investigate the most important aspects of the FE model and some possible simplifications with negligible effect on the results are made on the example of a massive foundation slab. Finally, the results are summarized with recommendations for creating the FE models of massive slabs at early ages.https://www.mdpi.com/1996-1944/15/5/1815early age concretefoundation slabshydration temperaturethermal stressfinite element analysis (FEA) |
| spellingShingle | Aneta Smolana Barbara Klemczak Miguel Azenha Dirk Schlicke Thermo-Mechanical Analysis of Mass Concrete Foundation Slabs at Early Age—Essential Aspects and Experiences from the FE Modelling Materials early age concrete foundation slabs hydration temperature thermal stress finite element analysis (FEA) |
| title | Thermo-Mechanical Analysis of Mass Concrete Foundation Slabs at Early Age—Essential Aspects and Experiences from the FE Modelling |
| title_full | Thermo-Mechanical Analysis of Mass Concrete Foundation Slabs at Early Age—Essential Aspects and Experiences from the FE Modelling |
| title_fullStr | Thermo-Mechanical Analysis of Mass Concrete Foundation Slabs at Early Age—Essential Aspects and Experiences from the FE Modelling |
| title_full_unstemmed | Thermo-Mechanical Analysis of Mass Concrete Foundation Slabs at Early Age—Essential Aspects and Experiences from the FE Modelling |
| title_short | Thermo-Mechanical Analysis of Mass Concrete Foundation Slabs at Early Age—Essential Aspects and Experiences from the FE Modelling |
| title_sort | thermo mechanical analysis of mass concrete foundation slabs at early age essential aspects and experiences from the fe modelling |
| topic | early age concrete foundation slabs hydration temperature thermal stress finite element analysis (FEA) |
| url | https://www.mdpi.com/1996-1944/15/5/1815 |
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