In the framework of the construction of the fusion reactor ITER, NUVIA was chosen for the design, supply and commissioning of the anti-seismic bearings on which is installed the nuclear unit. The anti-seismic bearings and commissioning methods were subjected to qualification tests so as to meet the very specific requirements related to nuclear constructions.

Scope

  • Qualification of the anti-seismic bearings (elastomeric bearings and bearing plates)
  • Performance of implementation studies and realization of mock-ups
  • Manufacturing of the bearings and associated plates
  • Performance of the production monitoring tests
  • Commissioning on site

Project challenges

  • Quality of the product and respect of nuclear requirements
  • Possibility to replace a bearing
  • Qualification of the seismic isolation at 70 years – durability

Technical solutions implemented

  • Steel-laminated elastomeric seismic isolators
  • Anti-seismic plates
  • Self-compacting concrete FOREVA C500
  • Final settlement performed once using a special funnel technique to avoid any void

LOCATION

Country: FRANCE
Site: ITER
Building: Réacteur Expérimental ITER

PROJECT PARTIES

Client: Fusion For Energy (F4E)
Awarding authority: ITER ORGANISATION
Architect Engineer: ENGAGE
Fusion For Energy (F4E)

KEY FIGURES

July 2011 – January 2012
180 m3 of concrete and mortar
250 T of bearing
420 T of steel

BUILDING

Tokamak