Effect of the Fire Modelling on the Structural Temperature Evolution Using Advanced Calculation Models
The main objective of this study is to compare the results in terms of gas temperature and structural elements temperature, using different localized fire models. In particular, with reference to an open car park fire, the simplified Hasemi localized fire model was firstly used for assessing the ste...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Fire |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2571-6255/6/3/91 |
| _version_ | 1797611845310218240 |
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| author | Donatella de Silva Samuele Sassi Gabriella De Rosa Giorgio Corbella Emidio Nigro |
| author_facet | Donatella de Silva Samuele Sassi Gabriella De Rosa Giorgio Corbella Emidio Nigro |
| author_sort | Donatella de Silva |
| collection | DOAJ |
| description | The main objective of this study is to compare the results in terms of gas temperature and structural elements temperature, using different localized fire models. In particular, with reference to an open car park fire, the simplified Hasemi localized fire model was firstly used for assessing the steel temperature of a typological steel-concrete beam. In the second step, the computational fluid dynamics (CFD) models were applied, also varying the geometry of the fire source; in the first case a 3D flame was considered, in the second case a flat flame source was modelled. The latter represented one of the main research novelties of this work. All the analyses were carried out without and with the activation of a sprinkler system, simulated by varying the Heat Release Rate curve, according to the Italian national fire technical code. The main results show that there was a significant effect of the fire model, indeed the Hasemi model generally overestimated the steel element temperature. Moreover, an effect of fire source modelling was observed, with greater temperature for a 3D fire source modelling in the case of no sprinkler activation. In all the analyses, to consider the sprinkler system leaded to a beneficial effect on temperature. |
| first_indexed | 2024-03-11T06:33:25Z |
| format | Article |
| id | doaj.art-e27eaf2a4bdb4ba6a5333e8b353b691c |
| institution | Directory Open Access Journal |
| issn | 2571-6255 |
| language | English |
| last_indexed | 2024-03-11T06:33:25Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fire |
| spelling | doaj.art-e27eaf2a4bdb4ba6a5333e8b353b691c2023-11-17T11:03:22ZengMDPI AGFire2571-62552023-02-01639110.3390/fire6030091Effect of the Fire Modelling on the Structural Temperature Evolution Using Advanced Calculation ModelsDonatella de Silva0Samuele Sassi1Gabriella De Rosa2Giorgio Corbella3Emidio Nigro4Department of Structures for Engineering and Architecture, University of Naples Federico II, Via Claudio 21, 80125 Naples, ItalyFSC Engineering Srl, Fire & Structure Consulting, Via Vincenzo Monti 56, 20123 Milan, ItalyDepartment of Structures for Engineering and Architecture, University of Naples Federico II, Via Claudio 21, 80125 Naples, ItalyFSC Engineering Srl, Fire & Structure Consulting, Via Vincenzo Monti 56, 20123 Milan, ItalyDepartment of Structures for Engineering and Architecture, University of Naples Federico II, Via Claudio 21, 80125 Naples, ItalyThe main objective of this study is to compare the results in terms of gas temperature and structural elements temperature, using different localized fire models. In particular, with reference to an open car park fire, the simplified Hasemi localized fire model was firstly used for assessing the steel temperature of a typological steel-concrete beam. In the second step, the computational fluid dynamics (CFD) models were applied, also varying the geometry of the fire source; in the first case a 3D flame was considered, in the second case a flat flame source was modelled. The latter represented one of the main research novelties of this work. All the analyses were carried out without and with the activation of a sprinkler system, simulated by varying the Heat Release Rate curve, according to the Italian national fire technical code. The main results show that there was a significant effect of the fire model, indeed the Hasemi model generally overestimated the steel element temperature. Moreover, an effect of fire source modelling was observed, with greater temperature for a 3D fire source modelling in the case of no sprinkler activation. In all the analyses, to consider the sprinkler system leaded to a beneficial effect on temperature.https://www.mdpi.com/2571-6255/6/3/91fire safetyopen car park firelocalized fire modelscomputational fluid dynamicnumerical simulations |
| spellingShingle | Donatella de Silva Samuele Sassi Gabriella De Rosa Giorgio Corbella Emidio Nigro Effect of the Fire Modelling on the Structural Temperature Evolution Using Advanced Calculation Models Fire fire safety open car park fire localized fire models computational fluid dynamic numerical simulations |
| title | Effect of the Fire Modelling on the Structural Temperature Evolution Using Advanced Calculation Models |
| title_full | Effect of the Fire Modelling on the Structural Temperature Evolution Using Advanced Calculation Models |
| title_fullStr | Effect of the Fire Modelling on the Structural Temperature Evolution Using Advanced Calculation Models |
| title_full_unstemmed | Effect of the Fire Modelling on the Structural Temperature Evolution Using Advanced Calculation Models |
| title_short | Effect of the Fire Modelling on the Structural Temperature Evolution Using Advanced Calculation Models |
| title_sort | effect of the fire modelling on the structural temperature evolution using advanced calculation models |
| topic | fire safety open car park fire localized fire models computational fluid dynamic numerical simulations |
| url | https://www.mdpi.com/2571-6255/6/3/91 |
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