Full Text Available
Note: Clicking the button above will open the full text document at the original institutional repository in a new window.
Temperature and thermal stress distribution in concrete arch dams in operation
The temperature field of concrete dams in operational stages is dominantly influenced by variations in environmental seasonal temperature and climatic conditions. Cyclic seasonal temperature and associated thermally induced stresses have been found to contribute significantly to long term degradatio...
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Department of Civil Engineering
2015
|
| Subjects: | |
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1867613344134856704 |
|---|---|
| access_status_str | Open Access |
| author | Meri, Tony Carlos |
| author2 | Moyo, Pilate |
| author_browse | Meri, Tony Carlos Moyo, Pilate |
| author_facet | Moyo, Pilate Meri, Tony Carlos |
| author_sort | Meri, Tony Carlos |
| collection | Thesis |
| description | The temperature field of concrete dams in operational stages is dominantly influenced by variations in environmental seasonal temperature and climatic conditions. Cyclic seasonal temperature and associated thermally induced stresses have been found to contribute significantly to long term degradation of strength and stiffness of concrete dams raising concerns about their durability (Leger et al. 1993). In this study, a critical review of the current state-of-the-art of temperature models for determining temperature distribution including the main environmental parameters influencing the temperature distribution for concrete dams in operation has been undertaken. It is found that, the heat flow in the concrete dams currently is approximated as conduction only and the classical Fourier heat conduction models are adopted as the governing equations to define heat flow mechanisms in the dam. The solution to Fourier heat models is accurately achieved through the finite element analysis using finite element models of the dam to the determine the temperature field. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/11420 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:34:39.078Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Department of Civil Engineering |
| publisherStr | Department of Civil Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/11420 Temperature and thermal stress distribution in concrete arch dams in operation Meri, Tony Carlos Moyo, Pilate Alexander, Mark Gavin Civil Engineering The temperature field of concrete dams in operational stages is dominantly influenced by variations in environmental seasonal temperature and climatic conditions. Cyclic seasonal temperature and associated thermally induced stresses have been found to contribute significantly to long term degradation of strength and stiffness of concrete dams raising concerns about their durability (Leger et al. 1993). In this study, a critical review of the current state-of-the-art of temperature models for determining temperature distribution including the main environmental parameters influencing the temperature distribution for concrete dams in operation has been undertaken. It is found that, the heat flow in the concrete dams currently is approximated as conduction only and the classical Fourier heat conduction models are adopted as the governing equations to define heat flow mechanisms in the dam. The solution to Fourier heat models is accurately achieved through the finite element analysis using finite element models of the dam to the determine the temperature field. 2015-01-05T18:19:44Z 2015-01-05T18:19:44Z 2011 Master Thesis Masters MSc http://hdl.handle.net/11427/11420 eng application/pdf Department of Civil Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Civil Engineering Meri, Tony Carlos Temperature and thermal stress distribution in concrete arch dams in operation |
| thesis_degree_str | Master's |
| title | Temperature and thermal stress distribution in concrete arch dams in operation |
| title_full | Temperature and thermal stress distribution in concrete arch dams in operation |
| title_fullStr | Temperature and thermal stress distribution in concrete arch dams in operation |
| title_full_unstemmed | Temperature and thermal stress distribution in concrete arch dams in operation |
| title_short | Temperature and thermal stress distribution in concrete arch dams in operation |
| title_sort | temperature and thermal stress distribution in concrete arch dams in operation |
| topic | Civil Engineering |
| url | http://hdl.handle.net/11427/11420 |
| work_keys_str_mv | AT meritonycarlos temperatureandthermalstressdistributioninconcretearchdamsinoperation |