A review on behavior, material properties and finite element simulation of concrete tunnel linings under fire
Rigorous understanding of tunnel fire attributes and behavior of concrete at elevated temperatures are indispensable for conducting a numerical simulation of tunnel linings exposed to fire. One of the main feats of tunnel fires is, unlike cellulose fires, temperature of these fires quickly ascends t...
| 发表在: | Tunnelling and Underground Space Technology |
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| 主要作者: | |
| 格式: | Review |
| 语言: | English |
| 出版: |
Elsevier Ltd
2022
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| 在线阅读: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85129768015&doi=10.1016%2fj.tust.2022.104534&partnerID=40&md5=08093001faccef6f40053efe6a8a2a0f |
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Saleheen Z.; Krishnamoorthy R.R.; Nadjai A. |
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| spelling |
Saleheen Z.; Krishnamoorthy R.R.; Nadjai A. 2-s2.0-85129768015 A review on behavior, material properties and finite element simulation of concrete tunnel linings under fire 2022 Tunnelling and Underground Space Technology 126 10.1016/j.tust.2022.104534 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85129768015&doi=10.1016%2fj.tust.2022.104534&partnerID=40&md5=08093001faccef6f40053efe6a8a2a0f Rigorous understanding of tunnel fire attributes and behavior of concrete at elevated temperatures are indispensable for conducting a numerical simulation of tunnel linings exposed to fire. One of the main feats of tunnel fires is, unlike cellulose fires, temperature of these fires quickly ascends to its zenith, which is higher than conventional cellulose fire temperature. Higher peak temperature in conjunction with rapid heating rate causes spalling in the tunnel linings, which is triggered by excess vapor pressure in concrete pores generated from evaporation of moisture in concrete. Apart from vaporization of moisture, multiple simultaneous physiochemical processes (dehydration/hydration, desorption/sorption, α-β transformation of quartz, decarbonation) take place in concrete when it gets heated. Modelling of a tunnel fire using a commercial finite element tool without taking into account of these physiochemical processes and latent energy associated with the phase changes will result in inaccurate prediction of the results. Thus, the behavior of concrete tunnel liners in extreme fire conditions and relevant material parameters required for numerical simulation are presented in this paper. © 2022 Elsevier Ltd Elsevier Ltd 8867798 English Review All Open Access; Green Open Access |
| author |
2-s2.0-85129768015 |
| spellingShingle |
2-s2.0-85129768015 A review on behavior, material properties and finite element simulation of concrete tunnel linings under fire |
| author_facet |
2-s2.0-85129768015 |
| author_sort |
2-s2.0-85129768015 |
| title |
A review on behavior, material properties and finite element simulation of concrete tunnel linings under fire |
| title_short |
A review on behavior, material properties and finite element simulation of concrete tunnel linings under fire |
| title_full |
A review on behavior, material properties and finite element simulation of concrete tunnel linings under fire |
| title_fullStr |
A review on behavior, material properties and finite element simulation of concrete tunnel linings under fire |
| title_full_unstemmed |
A review on behavior, material properties and finite element simulation of concrete tunnel linings under fire |
| title_sort |
A review on behavior, material properties and finite element simulation of concrete tunnel linings under fire |
| publishDate |
2022 |
| container_title |
Tunnelling and Underground Space Technology |
| container_volume |
126 |
| container_issue |
|
| doi_str_mv |
10.1016/j.tust.2022.104534 |
| url |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85129768015&doi=10.1016%2fj.tust.2022.104534&partnerID=40&md5=08093001faccef6f40053efe6a8a2a0f |
| description |
Rigorous understanding of tunnel fire attributes and behavior of concrete at elevated temperatures are indispensable for conducting a numerical simulation of tunnel linings exposed to fire. One of the main feats of tunnel fires is, unlike cellulose fires, temperature of these fires quickly ascends to its zenith, which is higher than conventional cellulose fire temperature. Higher peak temperature in conjunction with rapid heating rate causes spalling in the tunnel linings, which is triggered by excess vapor pressure in concrete pores generated from evaporation of moisture in concrete. Apart from vaporization of moisture, multiple simultaneous physiochemical processes (dehydration/hydration, desorption/sorption, α-β transformation of quartz, decarbonation) take place in concrete when it gets heated. Modelling of a tunnel fire using a commercial finite element tool without taking into account of these physiochemical processes and latent energy associated with the phase changes will result in inaccurate prediction of the results. Thus, the behavior of concrete tunnel liners in extreme fire conditions and relevant material parameters required for numerical simulation are presented in this paper. © 2022 Elsevier Ltd |
| publisher |
Elsevier Ltd |
| issn |
8867798 |
| language |
English |
| format |
Review |
| accesstype |
All Open Access; Green Open Access |
| record_format |
scopus |
| collection |
Scopus |
| _version_ |
1828987867872886784 |