Modeling of combined thermal and mechanical action in roller compacted concrete dam by three-dimensional finite element method
A combined thermal and mechanical action in roller compacted concrete (RCC) dam analysis is carried out using a three-dimensional finite element method. In this work a numerical procedure for the simulation of construction process and service life of RCC dams is presented. It takes into account the...
| Autors principals: | , , , |
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| Format: | Article |
| Idioma: | English |
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Techno-Press
2013
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| Accés en línia: | http://psasir.upm.edu.my/id/eprint/28522/1/Modeling%20of%20combined%20thermal%20and%20mechanical%20action%20in%20roller%20compacted%20concrete%20dam%20by%20three.pdf |
| _version_ | 1825947332738285568 |
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| author | Abdulrazeg, Aeid Ali Noorzaei, Jamaloddin Mohammed, Thamer Ahmed Jaafar, Mohd Saleh |
| author_facet | Abdulrazeg, Aeid Ali Noorzaei, Jamaloddin Mohammed, Thamer Ahmed Jaafar, Mohd Saleh |
| author_sort | Abdulrazeg, Aeid Ali |
| collection | UPM |
| description | A combined thermal and mechanical action in roller compacted concrete (RCC) dam analysis is carried out using a three-dimensional finite element method. In this work a numerical procedure for the simulation of construction process and service life of RCC dams is presented. It takes into account the more relevant features of the behavior of concrete such as hydration, ageing and creep. A viscoelastic model, including ageing effects and thermal dependent properties is adopted for the concrete. The different isothermal temperature influence on creep and elastic modulus is taken into account by the maturity concept, and the influence of the change of temperature on creep is considered by introducing a transient thermal creep term. Crack index is used to assess the risk of occurrence of crack either at short or long term. This study demonstrates that, the increase of the elastic modulus has been accelerated due to the high temperature of hydration at the initial stage, and consequently stresses are increased. |
| first_indexed | 2024-03-06T08:11:46Z |
| format | Article |
| id | upm.eprints-28522 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:11:46Z |
| publishDate | 2013 |
| publisher | Techno-Press |
| record_format | dspace |
| spelling | upm.eprints-285222019-12-17T06:53:28Z http://psasir.upm.edu.my/id/eprint/28522/ Modeling of combined thermal and mechanical action in roller compacted concrete dam by three-dimensional finite element method Abdulrazeg, Aeid Ali Noorzaei, Jamaloddin Mohammed, Thamer Ahmed Jaafar, Mohd Saleh A combined thermal and mechanical action in roller compacted concrete (RCC) dam analysis is carried out using a three-dimensional finite element method. In this work a numerical procedure for the simulation of construction process and service life of RCC dams is presented. It takes into account the more relevant features of the behavior of concrete such as hydration, ageing and creep. A viscoelastic model, including ageing effects and thermal dependent properties is adopted for the concrete. The different isothermal temperature influence on creep and elastic modulus is taken into account by the maturity concept, and the influence of the change of temperature on creep is considered by introducing a transient thermal creep term. Crack index is used to assess the risk of occurrence of crack either at short or long term. This study demonstrates that, the increase of the elastic modulus has been accelerated due to the high temperature of hydration at the initial stage, and consequently stresses are increased. Techno-Press 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/28522/1/Modeling%20of%20combined%20thermal%20and%20mechanical%20action%20in%20roller%20compacted%20concrete%20dam%20by%20three.pdf Abdulrazeg, Aeid Ali and Noorzaei, Jamaloddin and Mohammed, Thamer Ahmed and Jaafar, Mohd Saleh (2013) Modeling of combined thermal and mechanical action in roller compacted concrete dam by three-dimensional finite element method. Structural Engineering and Mechanics, 47 (1). pp. 1-25. ISSN 1225-4568; ESSN: 1598-6217 http://koreascience.or.kr/article/JAKO201332251648124.page 10.12989/sem.2013.47.1.001 |
| spellingShingle | Abdulrazeg, Aeid Ali Noorzaei, Jamaloddin Mohammed, Thamer Ahmed Jaafar, Mohd Saleh Modeling of combined thermal and mechanical action in roller compacted concrete dam by three-dimensional finite element method |
| title | Modeling of combined thermal and mechanical action in roller compacted concrete dam by three-dimensional finite element method |
| title_full | Modeling of combined thermal and mechanical action in roller compacted concrete dam by three-dimensional finite element method |
| title_fullStr | Modeling of combined thermal and mechanical action in roller compacted concrete dam by three-dimensional finite element method |
| title_full_unstemmed | Modeling of combined thermal and mechanical action in roller compacted concrete dam by three-dimensional finite element method |
| title_short | Modeling of combined thermal and mechanical action in roller compacted concrete dam by three-dimensional finite element method |
| title_sort | modeling of combined thermal and mechanical action in roller compacted concrete dam by three dimensional finite element method |
| url | http://psasir.upm.edu.my/id/eprint/28522/1/Modeling%20of%20combined%20thermal%20and%20mechanical%20action%20in%20roller%20compacted%20concrete%20dam%20by%20three.pdf |
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