Effects of Near-Fault Ground Motions on Nuclear Power Plant Containment Structures

Soyluk K., Sadegh-Azar H., Yılmaz D.

26th International Conference on Structural Mechanics in Reactor Technology , Potsdam, Almanya, 10 - 15 Temmuz 2022, ss.1-12

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Potsdam
  • Basıldığı Ülke: Almanya
  • Sayfa Sayıları: ss.1-12
  • Gazi Üniversitesi Adresli: Evet

Özet

In this study, it is intended to perform nonlinear time-history analyses of nuclear power plant structures (NPP) under near-fault earthquakes showing directivity pulse and fling-step characteristics. The structural responses obtained for the near-fault earthquakes are compared with those of the results obtained from the far-fault ground motions. Because it is aimed to determine specifically the pulse type characteristics of near-fault ground motions on NPPs, two different normalization strategies are used to compare the results in a consistent manner. The containment building considered in this study has a cylindrical wall connected with a spherical dome. Depending on the obtained results it can be outlined that especially the directivitypulse characteristics of near fault ground motions have noticeable effects on the responses of the considered NPP containment building.