Apartments Oosterhamrikkade

SAFETY, GRONINGEN, RESIDENCES, EARTHQUAKES

Location

Groningen

Size

10.000 m2

Client

Geveke Bouw en Ontwikkeling

Year

2016

At the northern side of the centre of Groningen city, along the Oosterhamrikkade, 3 apartment buildings have been realised for Geveke. Regarding possible earthquakes (PGA = 0,10g) research has been done into the consequences for the main load-bearing structures of these buildings. The forces proved to be so large, that a solution with base isolation was the only option. This solution has been completely integrated into the design up to the level of implementation. However, whilst developing this solution, construction had already started. This led to base isolation being applied later under the foundation of two of the buildlings. In order to construct this, a basement was dug out underneath the buildings, after which the piles were cut and a 'slider' was installed at every pile. In doing so, the building has been 'cut loose' of the foundation and made earthquake resistant. 
 

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For the third apartment building base isolation has been integrated during construction. We chose to implement base isolation between the foundation beams and the pile foundation. The entire main load-bearing structure and the tectonic structure has been analysed and calculated by using a NLTH-analysis in the computer programme Abaqus. All calculations and the documents of implementation were reviewed by prof. Calvi from italy by order of NAM.

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