Abstract
Original language | English |
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Publisher | VTT Technical Research Centre of Finland |
Number of pages | 130 |
Publication status | Published - 5 Nov 2018 |
MoE publication type | D4 Published development or research report or study |
Publication series
Series | VTT Tutkimusraportti |
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Number | VTT-R-02604-18 |
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Keywords
- Seismic response
- CDP material model
- Modal dynamics
- NPP structural integrity
Cite this
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Study of the seismic response of a nuclear powerplant building. / Fulop, Ludovic; Fedoroff, Alexis.
VTT Technical Research Centre of Finland, 2018. 130 p. (VTT Tutkimusraportti; No. VTT-R-02604-18).Research output: Book/Report › Report
TY - BOOK
T1 - Study of the seismic response of a nuclear powerplant building
AU - Fulop, Ludovic
AU - Fedoroff, Alexis
N1 - VTT-R-02604-18
PY - 2018/11/5
Y1 - 2018/11/5
N2 - The primary aim of the present series of computational studies is to observe the seismic response of a nuclear power plant (NPP) control building under various earthquake scenarios in the Finnish geological context. These scenarios are the Design Basis Earthquake (DBE) and the Design Extension Earthquake (DEE) as prescribed by the Finnish YVL guides. In addition to these normative earthquakes, it has been considered appropriate to investigate earthquake ground motions of the type likely to be experienced at the location of interest. These are called the Natural Design Basis Earthquake (NDBE) and the Natural Design Extension Earthquake (NDEE) in the report. Other aspects of the study includes a comparison between a linear modal dynamics analysis and a non-linear explicit time integration analysis. In seismic design, the modal dynamics analysis on a viscously damped linear elastic structure is the baseline analysis strategy. The use of non-linear material models in seismic analysis of structures have not yet been approved unanimously by the engineering trade, which motivates this comparative study between the two modelling paradigms on a full-scale nuclear structure. Further, a comparison between different ways to model the ground layer under the nuclear structure is reported: using a node based linear spring versus using a continuum description. Together, these comparative studies are expected to increase the level of knowledge in the field of seismic structural engineering and analysis in the nuclear context.
AB - The primary aim of the present series of computational studies is to observe the seismic response of a nuclear power plant (NPP) control building under various earthquake scenarios in the Finnish geological context. These scenarios are the Design Basis Earthquake (DBE) and the Design Extension Earthquake (DEE) as prescribed by the Finnish YVL guides. In addition to these normative earthquakes, it has been considered appropriate to investigate earthquake ground motions of the type likely to be experienced at the location of interest. These are called the Natural Design Basis Earthquake (NDBE) and the Natural Design Extension Earthquake (NDEE) in the report. Other aspects of the study includes a comparison between a linear modal dynamics analysis and a non-linear explicit time integration analysis. In seismic design, the modal dynamics analysis on a viscously damped linear elastic structure is the baseline analysis strategy. The use of non-linear material models in seismic analysis of structures have not yet been approved unanimously by the engineering trade, which motivates this comparative study between the two modelling paradigms on a full-scale nuclear structure. Further, a comparison between different ways to model the ground layer under the nuclear structure is reported: using a node based linear spring versus using a continuum description. Together, these comparative studies are expected to increase the level of knowledge in the field of seismic structural engineering and analysis in the nuclear context.
KW - Seismic response
KW - CDP material model
KW - Modal dynamics
KW - NPP structural integrity
M3 - Report
T3 - VTT Tutkimusraportti
BT - Study of the seismic response of a nuclear powerplant building
PB - VTT Technical Research Centre of Finland
ER -