On the effects of salient parameters for an efficient assessment of seismic response and fragility of circular tunnels in clayey deposits
The paper revisits the effects of salient parameters namely ground conditions, thickness, reinforcement and mechanical properties of the liner, and ground-tunnel relative flexibility, on the seismic response and fragility of circular tunnels embedded in clayey deposits, when accounting for the nonli...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Tsinidis, Grigorios [verfasserIn] Karatzetzou, Anna [verfasserIn] Stefanidou, Sotiria [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2024 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Soil dynamics and earthquake engineering - Amsterdam [u.a.] : Elsevier Science, 2011, 178 |
|---|---|
| Übergeordnetes Werk: |
volume:178 |
| DOI / URN: |
10.1016/j.soildyn.2024.108490 |
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| Katalog-ID: |
ELV067024041 |
|---|
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| 100 | 1 | |a Tsinidis, Grigorios |e verfasserin |0 (orcid)0000-0001-6045-1039 |4 aut | |
| 245 | 1 | 0 | |a On the effects of salient parameters for an efficient assessment of seismic response and fragility of circular tunnels in clayey deposits |
| 264 | 1 | |c 2024 | |
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| 520 | |a The paper revisits the effects of salient parameters namely ground conditions, thickness, reinforcement and mechanical properties of the liner, and ground-tunnel relative flexibility, on the seismic response and fragility of circular tunnels embedded in clayey deposits, when accounting for the nonlinear response of the liner. For this purpose, a numerical parametric study is conducted on a series of 27 ground-tunnel configurations by employing a thorough numerical framework. The analysis focuses on the assessment against ground seismic shaking acting in the transverse direction of the tunnel. The numerical framework includes a novel approach to evaluate the capacity of the tunnel liner and set limit states based on nonlinear pushover static analyses of the examined ground tunnel configurations. Nonlinear dynamic analyses are carried out for a set of ground motions to evaluate the demand of the examined tunnels. Probabilistic Seismic Demand Models (PSDMs) are developed using the ovaling distortion of the tunnel as an Engineering Demand Parameter (EDP), with various metrics being examined as potential Intensity Measures (IMs). Fragility functions are proposed based on the results of the analyses. Through the application of the analytical framework on the examined configurations, the effects of the examined parameters on the derived PSDMs and fragility functions are highlighted and discussed. The results reveal the significant effect of ground characteristics on the seismic response and fragility of tunnels. It is also highlighted that the development of generalized PSDMs and fragility functions covering a wide range of ground tunnel systems may lead to higher levels of uncertainty in risk and resilience assessment. | ||
| 650 | 4 | |a Underground structures | |
| 650 | 4 | |a Seismic response | |
| 650 | 4 | |a Seismic vulnerability | |
| 650 | 4 | |a Pushover analyses | |
| 650 | 4 | |a Dynamic analyses | |
| 650 | 4 | |a Fragility functions | |
| 700 | 1 | |a Karatzetzou, Anna |e verfasserin |0 (orcid)0000-0002-4658-457X |4 aut | |
| 700 | 1 | |a Stefanidou, Sotiria |e verfasserin |0 (orcid)0000-0002-2619-9340 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Soil dynamics and earthquake engineering |d Amsterdam [u.a.] : Elsevier Science, 2011 |g 178 |w (DE-627)308449487 |w (DE-600)1502466-0 |7 nnns |
| 773 | 1 | 8 | |g volume:178 |
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10.1016/j.soildyn.2024.108490 doi (DE-627)ELV067024041 (ELSEVIER)S0267-7261(24)00042-3 DE-627 ger DE-627 rda eng 630 640 550 VZ Tsinidis, Grigorios verfasserin (orcid)0000-0001-6045-1039 aut On the effects of salient parameters for an efficient assessment of seismic response and fragility of circular tunnels in clayey deposits 2024 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The paper revisits the effects of salient parameters namely ground conditions, thickness, reinforcement and mechanical properties of the liner, and ground-tunnel relative flexibility, on the seismic response and fragility of circular tunnels embedded in clayey deposits, when accounting for the nonlinear response of the liner. For this purpose, a numerical parametric study is conducted on a series of 27 ground-tunnel configurations by employing a thorough numerical framework. The analysis focuses on the assessment against ground seismic shaking acting in the transverse direction of the tunnel. The numerical framework includes a novel approach to evaluate the capacity of the tunnel liner and set limit states based on nonlinear pushover static analyses of the examined ground tunnel configurations. Nonlinear dynamic analyses are carried out for a set of ground motions to evaluate the demand of the examined tunnels. Probabilistic Seismic Demand Models (PSDMs) are developed using the ovaling distortion of the tunnel as an Engineering Demand Parameter (EDP), with various metrics being examined as potential Intensity Measures (IMs). Fragility functions are proposed based on the results of the analyses. Through the application of the analytical framework on the examined configurations, the effects of the examined parameters on the derived PSDMs and fragility functions are highlighted and discussed. The results reveal the significant effect of ground characteristics on the seismic response and fragility of tunnels. It is also highlighted that the development of generalized PSDMs and fragility functions covering a wide range of ground tunnel systems may lead to higher levels of uncertainty in risk and resilience assessment. Underground structures Seismic response Seismic vulnerability Pushover analyses Dynamic analyses Fragility functions Karatzetzou, Anna verfasserin (orcid)0000-0002-4658-457X aut Stefanidou, Sotiria verfasserin (orcid)0000-0002-2619-9340 aut Enthalten in Soil dynamics and earthquake engineering Amsterdam [u.a.] : Elsevier Science, 2011 178 (DE-627)308449487 (DE-600)1502466-0 nnns volume:178 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 178 |
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10.1016/j.soildyn.2024.108490 doi (DE-627)ELV067024041 (ELSEVIER)S0267-7261(24)00042-3 DE-627 ger DE-627 rda eng 630 640 550 VZ Tsinidis, Grigorios verfasserin (orcid)0000-0001-6045-1039 aut On the effects of salient parameters for an efficient assessment of seismic response and fragility of circular tunnels in clayey deposits 2024 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The paper revisits the effects of salient parameters namely ground conditions, thickness, reinforcement and mechanical properties of the liner, and ground-tunnel relative flexibility, on the seismic response and fragility of circular tunnels embedded in clayey deposits, when accounting for the nonlinear response of the liner. For this purpose, a numerical parametric study is conducted on a series of 27 ground-tunnel configurations by employing a thorough numerical framework. The analysis focuses on the assessment against ground seismic shaking acting in the transverse direction of the tunnel. The numerical framework includes a novel approach to evaluate the capacity of the tunnel liner and set limit states based on nonlinear pushover static analyses of the examined ground tunnel configurations. Nonlinear dynamic analyses are carried out for a set of ground motions to evaluate the demand of the examined tunnels. Probabilistic Seismic Demand Models (PSDMs) are developed using the ovaling distortion of the tunnel as an Engineering Demand Parameter (EDP), with various metrics being examined as potential Intensity Measures (IMs). Fragility functions are proposed based on the results of the analyses. Through the application of the analytical framework on the examined configurations, the effects of the examined parameters on the derived PSDMs and fragility functions are highlighted and discussed. The results reveal the significant effect of ground characteristics on the seismic response and fragility of tunnels. It is also highlighted that the development of generalized PSDMs and fragility functions covering a wide range of ground tunnel systems may lead to higher levels of uncertainty in risk and resilience assessment. Underground structures Seismic response Seismic vulnerability Pushover analyses Dynamic analyses Fragility functions Karatzetzou, Anna verfasserin (orcid)0000-0002-4658-457X aut Stefanidou, Sotiria verfasserin (orcid)0000-0002-2619-9340 aut Enthalten in Soil dynamics and earthquake engineering Amsterdam [u.a.] : Elsevier Science, 2011 178 (DE-627)308449487 (DE-600)1502466-0 nnns volume:178 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 178 |
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10.1016/j.soildyn.2024.108490 doi (DE-627)ELV067024041 (ELSEVIER)S0267-7261(24)00042-3 DE-627 ger DE-627 rda eng 630 640 550 VZ Tsinidis, Grigorios verfasserin (orcid)0000-0001-6045-1039 aut On the effects of salient parameters for an efficient assessment of seismic response and fragility of circular tunnels in clayey deposits 2024 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The paper revisits the effects of salient parameters namely ground conditions, thickness, reinforcement and mechanical properties of the liner, and ground-tunnel relative flexibility, on the seismic response and fragility of circular tunnels embedded in clayey deposits, when accounting for the nonlinear response of the liner. For this purpose, a numerical parametric study is conducted on a series of 27 ground-tunnel configurations by employing a thorough numerical framework. The analysis focuses on the assessment against ground seismic shaking acting in the transverse direction of the tunnel. The numerical framework includes a novel approach to evaluate the capacity of the tunnel liner and set limit states based on nonlinear pushover static analyses of the examined ground tunnel configurations. Nonlinear dynamic analyses are carried out for a set of ground motions to evaluate the demand of the examined tunnels. Probabilistic Seismic Demand Models (PSDMs) are developed using the ovaling distortion of the tunnel as an Engineering Demand Parameter (EDP), with various metrics being examined as potential Intensity Measures (IMs). Fragility functions are proposed based on the results of the analyses. Through the application of the analytical framework on the examined configurations, the effects of the examined parameters on the derived PSDMs and fragility functions are highlighted and discussed. The results reveal the significant effect of ground characteristics on the seismic response and fragility of tunnels. It is also highlighted that the development of generalized PSDMs and fragility functions covering a wide range of ground tunnel systems may lead to higher levels of uncertainty in risk and resilience assessment. Underground structures Seismic response Seismic vulnerability Pushover analyses Dynamic analyses Fragility functions Karatzetzou, Anna verfasserin (orcid)0000-0002-4658-457X aut Stefanidou, Sotiria verfasserin (orcid)0000-0002-2619-9340 aut Enthalten in Soil dynamics and earthquake engineering Amsterdam [u.a.] : Elsevier Science, 2011 178 (DE-627)308449487 (DE-600)1502466-0 nnns volume:178 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 178 |
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10.1016/j.soildyn.2024.108490 doi (DE-627)ELV067024041 (ELSEVIER)S0267-7261(24)00042-3 DE-627 ger DE-627 rda eng 630 640 550 VZ Tsinidis, Grigorios verfasserin (orcid)0000-0001-6045-1039 aut On the effects of salient parameters for an efficient assessment of seismic response and fragility of circular tunnels in clayey deposits 2024 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The paper revisits the effects of salient parameters namely ground conditions, thickness, reinforcement and mechanical properties of the liner, and ground-tunnel relative flexibility, on the seismic response and fragility of circular tunnels embedded in clayey deposits, when accounting for the nonlinear response of the liner. For this purpose, a numerical parametric study is conducted on a series of 27 ground-tunnel configurations by employing a thorough numerical framework. The analysis focuses on the assessment against ground seismic shaking acting in the transverse direction of the tunnel. The numerical framework includes a novel approach to evaluate the capacity of the tunnel liner and set limit states based on nonlinear pushover static analyses of the examined ground tunnel configurations. Nonlinear dynamic analyses are carried out for a set of ground motions to evaluate the demand of the examined tunnels. Probabilistic Seismic Demand Models (PSDMs) are developed using the ovaling distortion of the tunnel as an Engineering Demand Parameter (EDP), with various metrics being examined as potential Intensity Measures (IMs). Fragility functions are proposed based on the results of the analyses. Through the application of the analytical framework on the examined configurations, the effects of the examined parameters on the derived PSDMs and fragility functions are highlighted and discussed. The results reveal the significant effect of ground characteristics on the seismic response and fragility of tunnels. It is also highlighted that the development of generalized PSDMs and fragility functions covering a wide range of ground tunnel systems may lead to higher levels of uncertainty in risk and resilience assessment. Underground structures Seismic response Seismic vulnerability Pushover analyses Dynamic analyses Fragility functions Karatzetzou, Anna verfasserin (orcid)0000-0002-4658-457X aut Stefanidou, Sotiria verfasserin (orcid)0000-0002-2619-9340 aut Enthalten in Soil dynamics and earthquake engineering Amsterdam [u.a.] : Elsevier Science, 2011 178 (DE-627)308449487 (DE-600)1502466-0 nnns volume:178 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 178 |
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10.1016/j.soildyn.2024.108490 doi (DE-627)ELV067024041 (ELSEVIER)S0267-7261(24)00042-3 DE-627 ger DE-627 rda eng 630 640 550 VZ Tsinidis, Grigorios verfasserin (orcid)0000-0001-6045-1039 aut On the effects of salient parameters for an efficient assessment of seismic response and fragility of circular tunnels in clayey deposits 2024 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The paper revisits the effects of salient parameters namely ground conditions, thickness, reinforcement and mechanical properties of the liner, and ground-tunnel relative flexibility, on the seismic response and fragility of circular tunnels embedded in clayey deposits, when accounting for the nonlinear response of the liner. For this purpose, a numerical parametric study is conducted on a series of 27 ground-tunnel configurations by employing a thorough numerical framework. The analysis focuses on the assessment against ground seismic shaking acting in the transverse direction of the tunnel. The numerical framework includes a novel approach to evaluate the capacity of the tunnel liner and set limit states based on nonlinear pushover static analyses of the examined ground tunnel configurations. Nonlinear dynamic analyses are carried out for a set of ground motions to evaluate the demand of the examined tunnels. Probabilistic Seismic Demand Models (PSDMs) are developed using the ovaling distortion of the tunnel as an Engineering Demand Parameter (EDP), with various metrics being examined as potential Intensity Measures (IMs). Fragility functions are proposed based on the results of the analyses. Through the application of the analytical framework on the examined configurations, the effects of the examined parameters on the derived PSDMs and fragility functions are highlighted and discussed. The results reveal the significant effect of ground characteristics on the seismic response and fragility of tunnels. It is also highlighted that the development of generalized PSDMs and fragility functions covering a wide range of ground tunnel systems may lead to higher levels of uncertainty in risk and resilience assessment. Underground structures Seismic response Seismic vulnerability Pushover analyses Dynamic analyses Fragility functions Karatzetzou, Anna verfasserin (orcid)0000-0002-4658-457X aut Stefanidou, Sotiria verfasserin (orcid)0000-0002-2619-9340 aut Enthalten in Soil dynamics and earthquake engineering Amsterdam [u.a.] : Elsevier Science, 2011 178 (DE-627)308449487 (DE-600)1502466-0 nnns volume:178 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 178 |
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On the effects of salient parameters for an efficient assessment of seismic response and fragility of circular tunnels in clayey deposits |
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On the effects of salient parameters for an efficient assessment of seismic response and fragility of circular tunnels in clayey deposits |
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Tsinidis, Grigorios |
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Soil dynamics and earthquake engineering |
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Tsinidis, Grigorios Karatzetzou, Anna Stefanidou, Sotiria |
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10.1016/j.soildyn.2024.108490 |
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on the effects of salient parameters for an efficient assessment of seismic response and fragility of circular tunnels in clayey deposits |
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On the effects of salient parameters for an efficient assessment of seismic response and fragility of circular tunnels in clayey deposits |
| abstract |
The paper revisits the effects of salient parameters namely ground conditions, thickness, reinforcement and mechanical properties of the liner, and ground-tunnel relative flexibility, on the seismic response and fragility of circular tunnels embedded in clayey deposits, when accounting for the nonlinear response of the liner. For this purpose, a numerical parametric study is conducted on a series of 27 ground-tunnel configurations by employing a thorough numerical framework. The analysis focuses on the assessment against ground seismic shaking acting in the transverse direction of the tunnel. The numerical framework includes a novel approach to evaluate the capacity of the tunnel liner and set limit states based on nonlinear pushover static analyses of the examined ground tunnel configurations. Nonlinear dynamic analyses are carried out for a set of ground motions to evaluate the demand of the examined tunnels. Probabilistic Seismic Demand Models (PSDMs) are developed using the ovaling distortion of the tunnel as an Engineering Demand Parameter (EDP), with various metrics being examined as potential Intensity Measures (IMs). Fragility functions are proposed based on the results of the analyses. Through the application of the analytical framework on the examined configurations, the effects of the examined parameters on the derived PSDMs and fragility functions are highlighted and discussed. The results reveal the significant effect of ground characteristics on the seismic response and fragility of tunnels. It is also highlighted that the development of generalized PSDMs and fragility functions covering a wide range of ground tunnel systems may lead to higher levels of uncertainty in risk and resilience assessment. |
| abstractGer |
The paper revisits the effects of salient parameters namely ground conditions, thickness, reinforcement and mechanical properties of the liner, and ground-tunnel relative flexibility, on the seismic response and fragility of circular tunnels embedded in clayey deposits, when accounting for the nonlinear response of the liner. For this purpose, a numerical parametric study is conducted on a series of 27 ground-tunnel configurations by employing a thorough numerical framework. The analysis focuses on the assessment against ground seismic shaking acting in the transverse direction of the tunnel. The numerical framework includes a novel approach to evaluate the capacity of the tunnel liner and set limit states based on nonlinear pushover static analyses of the examined ground tunnel configurations. Nonlinear dynamic analyses are carried out for a set of ground motions to evaluate the demand of the examined tunnels. Probabilistic Seismic Demand Models (PSDMs) are developed using the ovaling distortion of the tunnel as an Engineering Demand Parameter (EDP), with various metrics being examined as potential Intensity Measures (IMs). Fragility functions are proposed based on the results of the analyses. Through the application of the analytical framework on the examined configurations, the effects of the examined parameters on the derived PSDMs and fragility functions are highlighted and discussed. The results reveal the significant effect of ground characteristics on the seismic response and fragility of tunnels. It is also highlighted that the development of generalized PSDMs and fragility functions covering a wide range of ground tunnel systems may lead to higher levels of uncertainty in risk and resilience assessment. |
| abstract_unstemmed |
The paper revisits the effects of salient parameters namely ground conditions, thickness, reinforcement and mechanical properties of the liner, and ground-tunnel relative flexibility, on the seismic response and fragility of circular tunnels embedded in clayey deposits, when accounting for the nonlinear response of the liner. For this purpose, a numerical parametric study is conducted on a series of 27 ground-tunnel configurations by employing a thorough numerical framework. The analysis focuses on the assessment against ground seismic shaking acting in the transverse direction of the tunnel. The numerical framework includes a novel approach to evaluate the capacity of the tunnel liner and set limit states based on nonlinear pushover static analyses of the examined ground tunnel configurations. Nonlinear dynamic analyses are carried out for a set of ground motions to evaluate the demand of the examined tunnels. Probabilistic Seismic Demand Models (PSDMs) are developed using the ovaling distortion of the tunnel as an Engineering Demand Parameter (EDP), with various metrics being examined as potential Intensity Measures (IMs). Fragility functions are proposed based on the results of the analyses. Through the application of the analytical framework on the examined configurations, the effects of the examined parameters on the derived PSDMs and fragility functions are highlighted and discussed. The results reveal the significant effect of ground characteristics on the seismic response and fragility of tunnels. It is also highlighted that the development of generalized PSDMs and fragility functions covering a wide range of ground tunnel systems may lead to higher levels of uncertainty in risk and resilience assessment. |
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On the effects of salient parameters for an efficient assessment of seismic response and fragility of circular tunnels in clayey deposits |
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