Performance of a reinforced concrete wall building subjected to sequential earthquake and tsunami loading
Performance of a reinforced concrete wall building subjected to sequential earthquake and tsunami loading
This paper investigates the behavior of a typical Chilean reinforced concrete wall building under sequential earthquake and tsunami actions using a double pushover analysis approach. A real concrete wall structure that was damaged after the M
w=8.8 2010 Maule earthquake is considered as a case study building and a simplified nonlinear finite element model of a fictitious slice of the building is subjected to earthquake and tsunami loading in sequence. The analysis of the building under these loadings consists of three stages: the structure is first subjected to seismic loading by means of a pushover analysis until a specific damage state is reached; then a pushover with the same load pattern but in the opposite direction is applied until the shear at the base is zero; and finally, the building is subjected to tsunami loading by means of a variable depth pushover analysis until the maximum capacity is reached. Different tsunami load cases are considered in this study, varying the Froude number and the direction of the tsunami loading. The results show that the tsunami response of the building is mainly dependent on the Froude number of the tsunami flow; however, when the seismic damage is severe, the tsunami capacity of the building is found to be reduced. This is more likely to occur when the effect of the tsunami increases the damage previously induced by the earthquake in the same direction.
Earthquake and tsunami in sequence, Inelastic finite element models, Reinforced concrete building, Shear wall damage, Simplified model
Tagle, S.J.
6a5dcecc-fbe4-45ef-a6bf-40b4e5d6e4ec
Junemann, R.
f2e1bb20-e2db-4489-b4bb-92dae5daf47a
Vasquez, J.
11e57e99-55ec-4554-8de4-faa8180eecbc
de la Llera, J.C.
40df6706-69cc-4567-9cec-6ed6a3df6bbd
Baiguera, Marco
8d832edf-e16f-426a-be38-6bcdc7b83545
1 July 2021
Tagle, S.J.
6a5dcecc-fbe4-45ef-a6bf-40b4e5d6e4ec
Junemann, R.
f2e1bb20-e2db-4489-b4bb-92dae5daf47a
Vasquez, J.
11e57e99-55ec-4554-8de4-faa8180eecbc
de la Llera, J.C.
40df6706-69cc-4567-9cec-6ed6a3df6bbd
Baiguera, Marco
8d832edf-e16f-426a-be38-6bcdc7b83545
Tagle, S.J., Junemann, R., Vasquez, J., de la Llera, J.C. and Baiguera, Marco
(2021)
Performance of a reinforced concrete wall building subjected to sequential earthquake and tsunami loading.
Engineering Structures, 238, [111995].
(doi:10.1016/j.engstruct.2021.111995).
Abstract
This paper investigates the behavior of a typical Chilean reinforced concrete wall building under sequential earthquake and tsunami actions using a double pushover analysis approach. A real concrete wall structure that was damaged after the M
w=8.8 2010 Maule earthquake is considered as a case study building and a simplified nonlinear finite element model of a fictitious slice of the building is subjected to earthquake and tsunami loading in sequence. The analysis of the building under these loadings consists of three stages: the structure is first subjected to seismic loading by means of a pushover analysis until a specific damage state is reached; then a pushover with the same load pattern but in the opposite direction is applied until the shear at the base is zero; and finally, the building is subjected to tsunami loading by means of a variable depth pushover analysis until the maximum capacity is reached. Different tsunami load cases are considered in this study, varying the Froude number and the direction of the tsunami loading. The results show that the tsunami response of the building is mainly dependent on the Froude number of the tsunami flow; however, when the seismic damage is severe, the tsunami capacity of the building is found to be reduced. This is more likely to occur when the effect of the tsunami increases the damage previously induced by the earthquake in the same direction.
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More information
Accepted/In Press date: 31 January 2021
e-pub ahead of print date: 4 April 2021
Published date: 1 July 2021
Additional Information:
Funding Information:
The authors are grateful to many students, people and institutions who helped throughout this study. This research has been sponsored by the Chilean National Agency for Research and Development (ANID), under the Fondecyt grant 11170514, and by the Research Center for integrated Disaster Risk Management (CIGIDEN) ANID/FONDAP/15110017. The authors are also grateful to Professor Tiziana Rossetto from UCL for her significant support and contribution. Additionally, the authors would like to thank Dr. Matías Chacón for his relevant support and work.
Funding Information:
The authors are grateful to many students, people and institutions who helped throughout this study. This research has been sponsored by the Chilean National Agency for Research and Development (ANID), under the Fondecyt grant 11170514, and by the Research Center for integrated Disaster Risk Management (CIGIDEN) ANID/FONDAP/15110017. The authors are also grateful to Professor Tiziana Rossetto from UCL for her significant support and contribution. Additionally, the authors would like to thank Dr. Mat?as Chac?n for his relevant support and work.
Publisher Copyright:
© 2021 Elsevier Ltd
Keywords:
Earthquake and tsunami in sequence, Inelastic finite element models, Reinforced concrete building, Shear wall damage, Simplified model
Identifiers
Local EPrints ID: 450406
URI: http://eprints.soton.ac.uk/id/eprint/450406
ISSN: 0141-0296
PURE UUID: ba0a5049-4b64-4319-a1a8-86545fbd704d
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Date deposited: 27 Jul 2021 17:24
Last modified: 17 Mar 2024 04:06
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Contributors
Author:
S.J. Tagle
Author:
R. Junemann
Author:
J. Vasquez
Author:
J.C. de la Llera
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