Latest issueConsideration of the "soil" damper in the modal superposition method during dynamic analysis of NPP civil structures
DOI: 10.37153/2618-9283-2022-3-20-30
Authors:
Ph. D., leading scientific expert, department of constructions reliability «Scientific and Engineering Centre for Nuclear and Radiation Safety». Moscow, Russian Federation
Vladimir A. Korotkov
Alexander V. Kuzminov
senior scientific expert, department of constructions reliability
«Scientific and Engineering Centre for Nuclear and Radiation Safety». Moscow, Russian Federation
Pavel A. Rodin
junior scientific expert, department of constructions reliability "Scientific and Engineering Centre for Nuclear and
Radiation Safety". Moscow, Russian Federation
Rubric: Theoretical and experimental studies
Key words: classical and non-classical modal methods, soil structure interaction effects, "soil" dashpot, projected on the eigenvector basis damping matrix, SIM-architecture, modal composite damping
Annotation:
This article presents a non-classical method of modal superposition for analysis of NPP building structures, taking into account springs and dampers that simulate soil. A description is given of a method that makes it possible to reliably take into account the "ground" damper, which makes it possible to significantly refine the results of dynamic analysis. The method has been certified by Rostekhnadzor and can be recommended for use in dynamic analysis of various buildings, with soil base.
Used Books:- МР 1.5.2.05.999.0025-2011. Seismic analysis and design of NPPs.
2. ASCE 4-16. Seismic Analysis of Safety-Related Nuclear Structures, 2017.
3. Korotkov V.A., Ilyin K.A. Application of "Soil" Dashpots in Modal Method Analysis of Civil Structures of Nuclear Power Plants. 2011 SIMULIA Customer Conference, Barselona, Spain.