Geometric and Material Nonlinear Analysis of Reinforced Concrete Slabs at Fire Environment
In the present study a nonlinear finite element analysis is presented to predict the fire resistance of reinforced concrete slabs at fire environment. An eight node layered degenerated shell element utilizing Mindlin/Reissner thick plate theory is employed. The proposed model considered cracking, cr...
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| Format: | Article |
| Language: | English |
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Tikrit University
2008-09-01
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| Series: | Tikrit Journal of Engineering Sciences |
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| Online Access: | https://tj-es.com/ojs/index.php/tjes/article/view/647 |
| _version_ | 1797782397544038400 |
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| author | Ayad A. Abdul -Razzak |
| author_facet | Ayad A. Abdul -Razzak |
| author_sort | Ayad A. Abdul -Razzak |
| collection | DOAJ |
| description | In the present study a nonlinear finite element analysis is presented to predict the fire resistance of reinforced concrete slabs at fire environment. An eight node layered degenerated shell element utilizing Mindlin/Reissner thick plate theory is employed. The proposed model considered cracking, crushing and yielding of concrete and steel at elevated temperatures. The layered approach is used to represent the steel reinforcement and discretize the concrete slab through the thickness. The reinforcement steel is represented as a smeared layer of equivalent thickness with uniaxial strength and rigidity properties. Geometric nonlinear analysis may play an important role in the behavior of reinforced concrete slabs at high temperature. Geometrical nonlinearity in the layered approach is considered in the mathematical model, which is based on the total Lagrangian approach taking into account Von Karman assumptions. Finally two examples for which experimental results are available are analyzed, using the proposed model .The comparison showed good agreement with experimental results.
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| first_indexed | 2024-03-13T00:10:24Z |
| format | Article |
| id | doaj.art-2d5f9bf20980475d884ed9b329e75c7e |
| institution | Directory Open Access Journal |
| issn | 1813-162X 2312-7589 |
| language | English |
| last_indexed | 2024-03-13T00:10:24Z |
| publishDate | 2008-09-01 |
| publisher | Tikrit University |
| record_format | Article |
| series | Tikrit Journal of Engineering Sciences |
| spelling | doaj.art-2d5f9bf20980475d884ed9b329e75c7e2023-07-12T12:56:06ZengTikrit UniversityTikrit Journal of Engineering Sciences1813-162X2312-75892008-09-0115310.25130/tjes.15.3.01Geometric and Material Nonlinear Analysis of Reinforced Concrete Slabs at Fire EnvironmentAyad A. Abdul -Razzak0Civil Eng. Dept., University of Mosul, IraqIn the present study a nonlinear finite element analysis is presented to predict the fire resistance of reinforced concrete slabs at fire environment. An eight node layered degenerated shell element utilizing Mindlin/Reissner thick plate theory is employed. The proposed model considered cracking, crushing and yielding of concrete and steel at elevated temperatures. The layered approach is used to represent the steel reinforcement and discretize the concrete slab through the thickness. The reinforcement steel is represented as a smeared layer of equivalent thickness with uniaxial strength and rigidity properties. Geometric nonlinear analysis may play an important role in the behavior of reinforced concrete slabs at high temperature. Geometrical nonlinearity in the layered approach is considered in the mathematical model, which is based on the total Lagrangian approach taking into account Von Karman assumptions. Finally two examples for which experimental results are available are analyzed, using the proposed model .The comparison showed good agreement with experimental results. https://tj-es.com/ojs/index.php/tjes/article/view/647Fire resistanceMaterial and Geometrical nonlinearityReinforced Concrete Slabs |
| spellingShingle | Ayad A. Abdul -Razzak Geometric and Material Nonlinear Analysis of Reinforced Concrete Slabs at Fire Environment Tikrit Journal of Engineering Sciences Fire resistance Material and Geometrical nonlinearity Reinforced Concrete Slabs |
| title | Geometric and Material Nonlinear Analysis of Reinforced Concrete Slabs at Fire Environment |
| title_full | Geometric and Material Nonlinear Analysis of Reinforced Concrete Slabs at Fire Environment |
| title_fullStr | Geometric and Material Nonlinear Analysis of Reinforced Concrete Slabs at Fire Environment |
| title_full_unstemmed | Geometric and Material Nonlinear Analysis of Reinforced Concrete Slabs at Fire Environment |
| title_short | Geometric and Material Nonlinear Analysis of Reinforced Concrete Slabs at Fire Environment |
| title_sort | geometric and material nonlinear analysis of reinforced concrete slabs at fire environment |
| topic | Fire resistance Material and Geometrical nonlinearity Reinforced Concrete Slabs |
| url | https://tj-es.com/ojs/index.php/tjes/article/view/647 |
| work_keys_str_mv | AT ayadaabdulrazzak geometricandmaterialnonlinearanalysisofreinforcedconcreteslabsatfireenvironment |