Full Content is available to subscribers

Subscribe/Learn More  >

The Structural Analysis of the Loviisa Plant Steel Containments for Service Life Extension

[+] Author Affiliations
Pentti Varpasuo

Fortum Nuclear Services, Ltd., Espoo, Finland

Paper No. ICONE14-89596, pp. 239-246; 8 pages
  • 14th International Conference on Nuclear Engineering
  • Volume 3: Structural Integrity; Nuclear Engineering Advances; Next Generation Systems; Near Term Deployment and Promotion of Nuclear Energy
  • Miami, Florida, USA, July 17–20, 2006
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 0-7918-4244-4 | eISBN: 0-7918-3783-1
  • Copyright © 2006 by ASME


This paper reports the activities performed in order to prepare the application documents to extend the service life of the Loviisa nuclear power plant by 20 years. Five key components were selected for detailed analysis process concerning the ageing effects, namely: 1) reactor vessel; 2) primary coolant pump; 3) steam generator; 4) pressurizer; 5) containment. This report concentrates on the containment building. The containment consists of the following main parts: 1) hemispherical dome; 2) cylindrical shell with stiffening and anchoring rings; 3) pre-stressed anchoring bolts; 4) penetrations and openings in dome and cylinder; 5) reinforced concrete base slab and reactor pit; 6) steel lining of the base slab and reactor pit; 7) vertical penetrations and openings in the base slab and reactor pit; 8) columns and walls supporting the base slab. The analysis was based on the results of monitoring the aging of the containment parts during the 30 years operating life of the plant and also on the 3D-structural analysis of the containment taking into account the degradation effects. As a result of the analysis the weakest links of the containment were identified and the remaining lifetime was assessed.

Copyright © 2006 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In