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Effect of Combination Pile Raft Soil Structure Interaction on Seismic Investigation of Nuclear Reactor Containment Structure
https://orcid.org/http://orcid.org/0000-0001-6541-1044
https://orcid.org/http://orcid.org/0000-0002-8306-7547
https://orcid.org/http://orcid.org/0000-0003-2437-6208
https://orcid.org/http://orcid.org/0000-0002-0067-2726
Nuclear Power plants (NPP) are one of the distinctive components of a country’s vital infrastructure system that provides for its energy needs. In India, several nuclear power stations (NPPs) are being built on a combined piled-raft foundation (CPRF) in soft soil conditions, notably a top alluvium in an active seismic zone. No research has been published so far that takes the nonlinearity of the soil for NPP buildings built on CPRF into account while considering seismic loads. The current study aims to explore, using a nonlinear finite element model, the dynamic reactions of the raft, pile with a raft, and CPRF of NPP. Furthermore, for a realistic simulation, it is critical to consider the various aspects of ground motion during time history analysis. The current work is focused on examining the seismic response of a nuclear containment structure employing a distributed array of inelastic springs, dashpots, and gap components to mimic the soil foundation interface using a nonlinear Winkler-based technique. Consequently, a specific 3D finite element numerical model of the nuclear structure was built and compared to the findings of earlier studies for nonlinear seismic analysis. In this article, investigations were done to consider the numerical analysis and combined pile and raft foundations to diminish the risk of NPPs caused by earthquakes. The findings demonstrate that soil structure interaction is the critical regulating factor that determines the now seismically resistant building.
Effect of Combination Pile Raft Soil Structure Interaction on Seismic Investigation of Nuclear Reactor Containment Structure
https://orcid.org/http://orcid.org/0000-0001-6541-1044
https://orcid.org/http://orcid.org/0000-0002-8306-7547
https://orcid.org/http://orcid.org/0000-0003-2437-6208
https://orcid.org/http://orcid.org/0000-0002-0067-2726
Nuclear Power plants (NPP) are one of the distinctive components of a country’s vital infrastructure system that provides for its energy needs. In India, several nuclear power stations (NPPs) are being built on a combined piled-raft foundation (CPRF) in soft soil conditions, notably a top alluvium in an active seismic zone. No research has been published so far that takes the nonlinearity of the soil for NPP buildings built on CPRF into account while considering seismic loads. The current study aims to explore, using a nonlinear finite element model, the dynamic reactions of the raft, pile with a raft, and CPRF of NPP. Furthermore, for a realistic simulation, it is critical to consider the various aspects of ground motion during time history analysis. The current work is focused on examining the seismic response of a nuclear containment structure employing a distributed array of inelastic springs, dashpots, and gap components to mimic the soil foundation interface using a nonlinear Winkler-based technique. Consequently, a specific 3D finite element numerical model of the nuclear structure was built and compared to the findings of earlier studies for nonlinear seismic analysis. In this article, investigations were done to consider the numerical analysis and combined pile and raft foundations to diminish the risk of NPPs caused by earthquakes. The findings demonstrate that soil structure interaction is the critical regulating factor that determines the now seismically resistant building.
Effect of Combination Pile Raft Soil Structure Interaction on Seismic Investigation of Nuclear Reactor Containment Structure
https://orcid.org/http://orcid.org/0000-0001-6541-1044
https://orcid.org/http://orcid.org/0000-0002-8306-7547
https://orcid.org/http://orcid.org/0000-0003-2437-6208
https://orcid.org/http://orcid.org/0000-0002-0067-2726
Nuclear Power plants (NPP) are one of the distinctive components of a country’s vital infrastructure system that provides for its energy needs. In India, several nuclear power stations (NPPs) are being built on a combined piled-raft foundation (CPRF) in soft soil conditions, notably a top alluvium in an active seismic zone. No research has been published so far that takes the nonlinearity of the soil for NPP buildings built on CPRF into account while considering seismic loads. The current study aims to explore, using a nonlinear finite element model, the dynamic reactions of the raft, pile with a raft, and CPRF of NPP. Furthermore, for a realistic simulation, it is critical to consider the various aspects of ground motion during time history analysis. The current work is focused on examining the seismic response of a nuclear containment structure employing a distributed array of inelastic springs, dashpots, and gap components to mimic the soil foundation interface using a nonlinear Winkler-based technique. Consequently, a specific 3D finite element numerical model of the nuclear structure was built and compared to the findings of earlier studies for nonlinear seismic analysis. In this article, investigations were done to consider the numerical analysis and combined pile and raft foundations to diminish the risk of NPPs caused by earthquakes. The findings demonstrate that soil structure interaction is the critical regulating factor that determines the now seismically resistant building.
Effect of Combination Pile Raft Soil Structure Interaction on Seismic Investigation of Nuclear Reactor Containment Structure
Lect.Notes Mechanical Engineering
Sassi, Sadok (Herausgeber:in) / Biswas, Paritosh (Herausgeber:in) / Naprstek, Jiri (Herausgeber:in) / Thakur, Bhairav (Autor:in) / Desai, Atul (Autor:in) / Shah, Hemal (Autor:in) / Patel, Deepam (Autor:in)
International Conference on Vibration Problems ; 2023 ; Doha, Qatar
Proceedings of the 15th International Conference on Vibration Problems ; Kapitel: 40 ; 449-458
20.03.2024
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Seismic Investigation of Nuclear Reactor Containment Structure
| TIBKAT | 2022
Seismic Investigation of Nuclear Reactor Containment Structure
| Springer Verlag | 2022
Effect of raft and pile stiffness on seismic response of soil-piled raft-structure system
| British Library Online Contents | 2015