[PDF] Top 20 Evaluating the effects on structure-soil-structure interaction in commercial nuclear power plants

... Dai-ichi nuclear power plant (NPP) resulting from the March 11, 2011, Great Tohoku Earthquake and subsequent tsunami, the Nuclear Regulatory Commission (NRC) issued a letter on March 12, 2012 NRC ... See full document

... the nuclear power plant ...the effects of varying material damping in the soil and ...deep soil site condition, an additional case of seven analyses was analyzed to further assess the ... See full document

... Mertz, G.E., Snyder, M., Cuesta, I., Flores, G.L., Moshen, A. and Watkins, D. (2019) Improvements in Frequency Domain Soil-Structure-Fluid Interaction Analysis of Nuclear Power ... See full document

... To show the validation of the newly proposed procedures, some SSI analyses are performed, that is, a SSI analysis on the example model defined at previous section without base isolators, and a SSI analysis on the example ... See full document

... The analyses performed for this paper validate the conclusions from Bjorkman et al. (2001) through the application of real-world examples. These analyses definitively conclude that the flexibility of the pad is a very ... See full document

... PWR nuclear power plant (NPP) in Japan is commonly used as a twin-plant, and many heavy buildings such as Reactor Building (RB) and Auxiliary Building (AB) are located closely, and lightweight small ... See full document

... on nuclear power plants (NPP) shall be examined by considering the soil structure interaction (SSI) because current NPP seismic design codes allow foundation soil much ... See full document

... the structure, the simple structures are idealized as models having 6 natural frequencies of ...actual structure models to consider the various stiffness of ...of soil are selected to account for ... See full document

... existing nuclear power plants and safety-related nuclear structures in the United ...States. Soil-structure interaction (SSI) analysis is a key component of the risk ... See full document

... seismic effects, missile protection and improving site visual activities, several advanced reactor designs have proposed to bury or partially bury reactor structures as one of the major features of their designs ... See full document

... in nuclear power plants have brought about terrible results such as large casualties, property damages, and semi-permanent radiation contamination, as we have seen from disasters at Three Mile Island ... See full document

... seismic soil-structure interaction (SSI) of a reactor building with a circular basemat supported by large number of concrete piles, performed within a seismic margin assessment (SMA) ...inertial ... See full document

... the soil impacts the motion of the structure and the motion of the structure have an impact on the response of soil is termed as Soil structure interaction ...of ... See full document

... ABAQUS soil model used in this paper provides a basis for a wide range of alternative calculations incorporating wave propagation ...ABAQUS soil model shall be adjusted or combined with site response ... See full document

... engineering structure commonly involves some form of structural part with direct contact with ...that structure and also when the structure is interacted with the soil the forces which are ... See full document

... boundary effects created by artificial boundaries of a soil model ...this soil container is to hold the soil in place during the excitation and to provide ...the soil is unbounded. ... See full document

... The facility consists of several large complex structures that are categorized as Seismic Category I, following the US Department of Energy guidelines. The High Level Waste (HLW) is the main structure with a ... See full document

... concrete structure to primary containment vessel of BWRs – (5) Horizontal lording test of cylindrically-shaped steel plate reinforced concrete structure under high temperature ... See full document

... supporting soil medium allows movement to some extent due to its property to ...to soil flexibility intern alters the ...by soil at the base of the structure depends on the load transferred ... See full document

... seismic response of the system can be accurately predicted by an equivalent single degree of freeedom oscillator with period and damping which represent modifications to the first mode period and damping of structural ... See full document