Modeling of Reinforced Concrete Beams Exposed to Fire by Using a Spectral Approach
This paper presents a numerical procedure for predicting the mechanical behavior of reinforced concrete (RC) beams exposed to fire. Thermal behavior is captured using a two-dimensional finite element (FE) model in an environment of elevated temperatures, while a one-dimensional spectral numerical mo...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/6936371 |
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| _version_ | 1832556958929911808 |
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| author | Rui Sun Bo Xie Ricardo Perera Yongjun Pan |
| author_facet | Rui Sun Bo Xie Ricardo Perera Yongjun Pan |
| author_sort | Rui Sun |
| collection | DOAJ |
| description | This paper presents a numerical procedure for predicting the mechanical behavior of reinforced concrete (RC) beams exposed to fire. Thermal behavior is captured using a two-dimensional finite element (FE) model in an environment of elevated temperatures, while a one-dimensional spectral numerical model is formulated to simulate the mechanical response of the beam under increasing loads. Both models are integrated. Previous thermal results obtained from the FE model are provided for the proposed numerical model to calculate the responses of the RC beam for different levels of fire exposure. Few elements are deployed in this study due to the simplicity and efficiency of the proposed numerical model. Consequently, the computational burden of the numerical simulation for predicting the structural performances of RC beams exposed to fire is released comparing with conventional FE model. The numerical results are consistent with the test data, which demonstrate the model’s capability of efficiently simulating the thermomechanical behaviors of RC beams due to its simplicity and accuracy. |
| format | Article |
| id | doaj-art-7a944c50eedb4f5faa75d792548b8efc |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-7a944c50eedb4f5faa75d792548b8efc2025-02-03T05:44:03ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/69363716936371Modeling of Reinforced Concrete Beams Exposed to Fire by Using a Spectral ApproachRui Sun0Bo Xie1Ricardo Perera2Yongjun Pan3Key Laboratory of New Technology for Construction of Cities in Mountain Area, Ministry of Education, School of Civil Engineering, Chongqing University, Chongqing 400045, ChinaKey Laboratory of New Technology for Construction of Cities in Mountain Area, Ministry of Education, School of Civil Engineering, Chongqing University, Chongqing 400045, ChinaDepartment of Mechanical Engineering, Technical University of Madrid, José Gutiérrez Abascal 2, 28006 Madrid, SpainSchool of Automotive Engineering, Chongqing University, Chongqing 400044, ChinaThis paper presents a numerical procedure for predicting the mechanical behavior of reinforced concrete (RC) beams exposed to fire. Thermal behavior is captured using a two-dimensional finite element (FE) model in an environment of elevated temperatures, while a one-dimensional spectral numerical model is formulated to simulate the mechanical response of the beam under increasing loads. Both models are integrated. Previous thermal results obtained from the FE model are provided for the proposed numerical model to calculate the responses of the RC beam for different levels of fire exposure. Few elements are deployed in this study due to the simplicity and efficiency of the proposed numerical model. Consequently, the computational burden of the numerical simulation for predicting the structural performances of RC beams exposed to fire is released comparing with conventional FE model. The numerical results are consistent with the test data, which demonstrate the model’s capability of efficiently simulating the thermomechanical behaviors of RC beams due to its simplicity and accuracy.http://dx.doi.org/10.1155/2018/6936371 |
| spellingShingle | Rui Sun Bo Xie Ricardo Perera Yongjun Pan Modeling of Reinforced Concrete Beams Exposed to Fire by Using a Spectral Approach Advances in Materials Science and Engineering |
| title | Modeling of Reinforced Concrete Beams Exposed to Fire by Using a Spectral Approach |
| title_full | Modeling of Reinforced Concrete Beams Exposed to Fire by Using a Spectral Approach |
| title_fullStr | Modeling of Reinforced Concrete Beams Exposed to Fire by Using a Spectral Approach |
| title_full_unstemmed | Modeling of Reinforced Concrete Beams Exposed to Fire by Using a Spectral Approach |
| title_short | Modeling of Reinforced Concrete Beams Exposed to Fire by Using a Spectral Approach |
| title_sort | modeling of reinforced concrete beams exposed to fire by using a spectral approach |
| url | http://dx.doi.org/10.1155/2018/6936371 |
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