Merckt is a project in the centre of Groningen city situated on the corner of Grote Markt. The building houses apartments and small restaurants. Because of its specific shape, the earthquake resistant engineering for the building was particularly complex. Through an NLTH-analyse, the behaviour of the structure during an earthquake was investigated, see our paper. Especially the lower levels are sensitive to earthquake loads. To make the building earthquake resistant in its present form, the apartments have been structurally 'separated' from the lower levels. This significantly reduces the forces from the apartments in case of an earthquake and enables the structure to absorb them within the present design.
We have made a short illustration with a comparison of an earthquake analysis of Merckt with and without base isolation.
SAFETY, GRONINGEN, RESIDENCES, SHOPS, EARTHQUAKES
In the Paddepoel district a residential tower called 'Polaris' is being realised. This tower is going to be around 70 metres high. Regarding the earthquakes (PGA = 0,08), research has been done into the consequences for the main load bearing structures of this high-rise building. The forces are of such size that a sollution with base isolation is the most economical. This sollution has been completely integrated into the design and implementation of this complex. We chose to implement base isolation between the foundation beams and ground floor. The entire main load-bearing construction, including reinforcement and the structural design has been analysed and calculated with the use of an NLTH analysis in Abaqus.
SAFETY, GRONINGEN, RESIDENCES, HIGH-RISE, EARTHQUAKES
At the location of the former FC Groningen football stadium, a building with 72 earthquake resistant apartments has been designed, entirely in line with the football tradition. To make the apartment building earthquake resistant, sliders have been applied between the lowered parking basement and the first floor. The building and the soil can now move independently from each other, to safeguard the safety of the residents in case of an earthquake. The technique has been made visible in the staircases.
SAFETY, GRONINGEN, EARTHQUAKES, RESIDENCES