Statistical analysis of the variation of floor vibrations in nuclear power plants subject to seismic loads

• Published in: Nuclear engineering and design Vol. 309; pp. 84 - 96
• Main Authors: Jussila, Vilho, Li, Yue, Fülöp, Ludovic
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.12.2016; Elsevier BV
• Subjects: 3-D technology; Acceleration; Aseismic buildings; Bedrock; Computer simulation; Confidence; Damping; Data processing; Earthquake accelerograms; Earthquake construction; Earthquake dampers; Energy modeling; Engineering; Flooring; Ground motion; Integration; Nuclear electric power generation; Nuclear energy; Nuclear power plants; Response spectra; Seismic engineering; Seismic response; Statistical analysis; Statistics; Studies; Three dimensional models; Time integration; Vibration; Vibrations; SSC; CDF; ABBSUM; A. Engineering Mechanics; SSI; MDOF; ZPA; COV; PGA; SDOF; CQC; SRSS; EMPF; PSA

•Floor flexibility plays a non-negligible role in amplifying horizontal vibrations.•COV of in-floor horizontal and vertical acceleration are 0.15–0.25 and 0.25–0.55.•In-floor variation of vibrations is higher in lower floors.•Floor spectra from limited nodes underestimates vibrations by a factor of...