Analysis of Fire Resistance of Prestressed Concrete T-Beam Based on ABAQUS Numerical Simulation
The analytical fire resistance calculations were carried out on 57 prestressed concrete T-beam models using the finite element software ABAQUS. The effects of different fire modes, different concrete strengths, different flange plate thicknesses, different ratios of the prestressing bar, and differe...
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| Format: | Article |
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MDPI AG
2023-04-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/8/4683 |
| _version_ | 1827746109525590016 |
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| author | Zhongqiang Wang Miao Chen Yong Liao |
| author_facet | Zhongqiang Wang Miao Chen Yong Liao |
| author_sort | Zhongqiang Wang |
| collection | DOAJ |
| description | The analytical fire resistance calculations were carried out on 57 prestressed concrete T-beam models using the finite element software ABAQUS. The effects of different fire modes, different concrete strengths, different flange plate thicknesses, different ratios of the prestressing bar, and different concrete protection layer thicknesses were investigated in three cases with load ratios of <i>n</i> = 0.4, <i>n</i> = 0.6, and <i>n</i> = 0.8. The fire resistance of prestressed concrete T-beams shows a large variability under different fire modes. The fire mode significantly affects the fire resistance of the structure and should be given more consideration in the subsequent fire resistance design of the structure. The configuration of prestressing bars will significantly increase the fire resistance of concrete T-beams, while the thickness of the concrete protective layer and the concrete strength will significantly affect the fire resistance of prestressed concrete T-beams. Therefore, the fire resistance can be improved by adding prestressing bars, increasing the concrete strength, and increasing the thickness of the protective layer in the design. Finally, a fitting equation for fire resistance of the prestressed concrete T-beams based on the finite element model calculation data was created. The equation has good prediction accuracy and can provide a reference for the fire resistance design of prestressed concrete T-beams. |
| first_indexed | 2024-03-11T05:16:51Z |
| format | Article |
| id | doaj.art-5cacb71b36254190826d50f4d0409816 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T05:16:51Z |
| publishDate | 2023-04-01 |
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| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-5cacb71b36254190826d50f4d04098162023-11-17T18:07:41ZengMDPI AGApplied Sciences2076-34172023-04-01138468310.3390/app13084683Analysis of Fire Resistance of Prestressed Concrete T-Beam Based on ABAQUS Numerical SimulationZhongqiang Wang0Miao Chen1Yong Liao2College of Civil Engineering, Changsha University of Science and Technology, Changsha 410114, ChinaCollege of Civil Engineering, Changsha University of Science and Technology, Changsha 410114, ChinaCollege of Civil Engineering, Changsha University of Science and Technology, Changsha 410114, ChinaThe analytical fire resistance calculations were carried out on 57 prestressed concrete T-beam models using the finite element software ABAQUS. The effects of different fire modes, different concrete strengths, different flange plate thicknesses, different ratios of the prestressing bar, and different concrete protection layer thicknesses were investigated in three cases with load ratios of <i>n</i> = 0.4, <i>n</i> = 0.6, and <i>n</i> = 0.8. The fire resistance of prestressed concrete T-beams shows a large variability under different fire modes. The fire mode significantly affects the fire resistance of the structure and should be given more consideration in the subsequent fire resistance design of the structure. The configuration of prestressing bars will significantly increase the fire resistance of concrete T-beams, while the thickness of the concrete protective layer and the concrete strength will significantly affect the fire resistance of prestressed concrete T-beams. Therefore, the fire resistance can be improved by adding prestressing bars, increasing the concrete strength, and increasing the thickness of the protective layer in the design. Finally, a fitting equation for fire resistance of the prestressed concrete T-beams based on the finite element model calculation data was created. The equation has good prediction accuracy and can provide a reference for the fire resistance design of prestressed concrete T-beams.https://www.mdpi.com/2076-3417/13/8/4683prestressed concrete T-beamfinite element modelfire resistance |
| spellingShingle | Zhongqiang Wang Miao Chen Yong Liao Analysis of Fire Resistance of Prestressed Concrete T-Beam Based on ABAQUS Numerical Simulation Applied Sciences prestressed concrete T-beam finite element model fire resistance |
| title | Analysis of Fire Resistance of Prestressed Concrete T-Beam Based on ABAQUS Numerical Simulation |
| title_full | Analysis of Fire Resistance of Prestressed Concrete T-Beam Based on ABAQUS Numerical Simulation |
| title_fullStr | Analysis of Fire Resistance of Prestressed Concrete T-Beam Based on ABAQUS Numerical Simulation |
| title_full_unstemmed | Analysis of Fire Resistance of Prestressed Concrete T-Beam Based on ABAQUS Numerical Simulation |
| title_short | Analysis of Fire Resistance of Prestressed Concrete T-Beam Based on ABAQUS Numerical Simulation |
| title_sort | analysis of fire resistance of prestressed concrete t beam based on abaqus numerical simulation |
| topic | prestressed concrete T-beam finite element model fire resistance |
| url | https://www.mdpi.com/2076-3417/13/8/4683 |
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