ESS NEUTRON FACILITY | CASE STUDY


Buro Happold’s structural design has


large open spans to cover the Target building and associated Experimental Halls. Due to strict criteria by the regulatory authorities, the steel structure must conform with elements such as supporting up to 7m of snow on portions of the roof and be shockproof in case of earthquakes. Four operating overhead cranes, supplied by Munck and Dematek, provide operational flexibility to the building. The crane in the central target building meets particularly high safety standards as it is required to transport heavy components and sometimes activated material resulting from the spallation process: It can lift 115 tons – the weight of a Boeing 787. The building’s outer structure is designed


to cope with internal forces and movement caused not only by individual cranes but many loading scenarios created when all cranes are in operation simultaneously. Adam Pekala, project leader at Buro Happold explains: “The cladding of the overhanging roof is clad in L-shaped aluminium lamellas mounted onto panels.


R Outside the ESS building.


“The nature of these panels prevents detrimental snow accumulation on the overhang, reducing the total load acting on the large overhangs. We used parametric modelling to define the optimum shape and layout of the panels and reduced the number of bespoke assemblies by 87%. This helped to minimise wastage by using


materials and production resources in a more sustainable way, whilst enabling much faster fabrication and assembly.” Mark Bakelaar, MD, Munck Cranes, added: “ESS is indeed a special project and we have delivered three customised overhead cranes, with the last two being delivered next month.”


R Dematek has supplied one crane to the ESS facility. www.hoistmagazine.com | May 2022 | 21


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