Damage evolution and safety assessment of tunnel lining subjected to long-duration fire
Tunnel linings would suffer heavy structural damage or even collapse when exposed to a long-duration fire. The damage is greatly affected by heating time. In this paper, a theoretical method is suggested to investigate the thermo-mechanical behaviors of tunnel lining subjected to a long-duration fir...
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| Veröffentlicht in: | Tunnelling and underground space technology 2019-01, Vol.83, p.354-363 |
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| container_title | Tunnelling and underground space technology |
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| creator | Qiao, Rujia Shao, Zhushan Liu, Fengyun Wei, Wei |
| description | Tunnel linings would suffer heavy structural damage or even collapse when exposed to a long-duration fire. The damage is greatly affected by heating time. In this paper, a theoretical method is suggested to investigate the thermo-mechanical behaviors of tunnel lining subjected to a long-duration fire loading. A 2D unsteady-state thermo-mechanical model is established to analyze the time-dependent temperature and stresses distributions of tunnel lining under fire. A modified RABT fire curve is employed to describe the tunnel fire development. By using Laplace Transform and series solving method for ordinary differential equations (ODE), the analytical solutions of time-dependent temperature and stresses are obtained and numerically verified. Based on the temperature criterion and the residual stress criterion, damage evolution of tunnel lining is graphically presented and discussed. According to the comparison results, the consistence of these two criteria is theoretically verified. |
| doi_str_mv | 10.1016/j.tust.2018.09.036 |
| format | Article |
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The damage is greatly affected by heating time. In this paper, a theoretical method is suggested to investigate the thermo-mechanical behaviors of tunnel lining subjected to a long-duration fire loading. A 2D unsteady-state thermo-mechanical model is established to analyze the time-dependent temperature and stresses distributions of tunnel lining under fire. A modified RABT fire curve is employed to describe the tunnel fire development. By using Laplace Transform and series solving method for ordinary differential equations (ODE), the analytical solutions of time-dependent temperature and stresses are obtained and numerically verified. Based on the temperature criterion and the residual stress criterion, damage evolution of tunnel lining is graphically presented and discussed. 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According to the comparison results, the consistence of these two criteria is theoretically verified.</description><subject>Criteria</subject><subject>Damage assessment</subject><subject>Damage evolution</subject><subject>Differential equations</subject><subject>Differential thermal analysis</subject><subject>Evolution</subject><subject>Fire</subject><subject>Fire damage</subject><subject>Fires</subject><subject>Mathematical models</subject><subject>Residual stress</subject><subject>Stress</subject><subject>Structural damage</subject><subject>Temperature</subject><subject>Temperature dependence</subject><subject>Time dependence</subject><subject>Tunnel lining</subject><subject>Tunnel linings</subject><subject>Tunnels</subject><subject>Two dimensional models</subject><issn>0886-7798</issn><issn>1878-4364</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9kLtqwzAUhkVpoenlBToJOtvVzbYMXUp6hUCXQEchS0fBxpFSSQ7k7es0nTud5b-c_0PojpKSElo_DGWeUi4ZobIkbUl4fYYWVDayELwW52hBpKyLpmnlJbpKaSCEVIy1C_T1rLd6Axj2YZxyHzzW3uKkHeQD1ilBSlvwGQeH8-Q9jHjsfe83OE3dACaDxTngMfhNYaeofxNcH-EGXTg9Jrj9u9do_fqyXr4Xq8-3j-XTqjCcyVwwYozotKwEr0B0xkjhGl0Z1zpjO9d2jaUcXNswI-YFHReybqRxVQeVsYRfo_tT7C6G7wlSVkOYop8bFaN13YiKcjar2EllYkgpglO72G91PChK1JGfGtSRnzryU6RVM7_Z9Hgywfz-voeokunBG7DzPJOVDf1_9h8AAHuh</recordid><startdate>201901</startdate><enddate>201901</enddate><creator>Qiao, Rujia</creator><creator>Shao, Zhushan</creator><creator>Liu, Fengyun</creator><creator>Wei, Wei</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><orcidid>https://orcid.org/0000-0001-6603-296X</orcidid></search><sort><creationdate>201901</creationdate><title>Damage evolution and safety assessment of tunnel lining subjected to long-duration fire</title><author>Qiao, Rujia ; Shao, Zhushan ; Liu, Fengyun ; Wei, Wei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c328t-20cc4ba85435e4bcc84f7a5cf9fcdbf9b7d13ef972c4886b348678cf5be5cd03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Criteria</topic><topic>Damage assessment</topic><topic>Damage evolution</topic><topic>Differential equations</topic><topic>Differential thermal analysis</topic><topic>Evolution</topic><topic>Fire</topic><topic>Fire damage</topic><topic>Fires</topic><topic>Mathematical models</topic><topic>Residual stress</topic><topic>Stress</topic><topic>Structural damage</topic><topic>Temperature</topic><topic>Temperature dependence</topic><topic>Time dependence</topic><topic>Tunnel lining</topic><topic>Tunnel linings</topic><topic>Tunnels</topic><topic>Two dimensional models</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Qiao, Rujia</creatorcontrib><creatorcontrib>Shao, Zhushan</creatorcontrib><creatorcontrib>Liu, Fengyun</creatorcontrib><creatorcontrib>Wei, Wei</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Tunnelling and underground space technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Qiao, Rujia</au><au>Shao, Zhushan</au><au>Liu, Fengyun</au><au>Wei, Wei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Damage evolution and safety assessment of tunnel lining subjected to long-duration fire</atitle><jtitle>Tunnelling and underground space technology</jtitle><date>2019-01</date><risdate>2019</risdate><volume>83</volume><spage>354</spage><epage>363</epage><pages>354-363</pages><issn>0886-7798</issn><eissn>1878-4364</eissn><abstract>Tunnel linings would suffer heavy structural damage or even collapse when exposed to a long-duration fire. The damage is greatly affected by heating time. In this paper, a theoretical method is suggested to investigate the thermo-mechanical behaviors of tunnel lining subjected to a long-duration fire loading. A 2D unsteady-state thermo-mechanical model is established to analyze the time-dependent temperature and stresses distributions of tunnel lining under fire. A modified RABT fire curve is employed to describe the tunnel fire development. By using Laplace Transform and series solving method for ordinary differential equations (ODE), the analytical solutions of time-dependent temperature and stresses are obtained and numerically verified. Based on the temperature criterion and the residual stress criterion, damage evolution of tunnel lining is graphically presented and discussed. 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| ispartof | Tunnelling and underground space technology, 2019-01, Vol.83, p.354-363 |
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| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Criteria Damage assessment Damage evolution Differential equations Differential thermal analysis Evolution Fire Fire damage Fires Mathematical models Residual stress Stress Structural damage Temperature Temperature dependence Time dependence Tunnel lining Tunnel linings Tunnels Two dimensional models |
| title | Damage evolution and safety assessment of tunnel lining subjected to long-duration fire |
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