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The planned new build of the Allmend primary school aims to create future-proof, sustainable and pedagogically functional infrastructure for primary education grades 1 to 6. The four-storey building structure will be erected on the school site using conventional timber construction and will replace the existing outdoor sports facility (“Red Square”). The geological and hydrogeological conditions on the site are considered challenging. In particular, two groundwater strata that must be separated from each other are to be taken into account. The subsoil requires pile foundations (concrete displacement bored piles), including for service lines and inspection shafts (timber piles). With regard to flood protection, the new build meets the requirements of HQ300- Building services engineering will be located on the ground floor and on the topmost storey (no basement), in order to prevent damage caused by flood events. The building’s load-bearing structure is based on a massive timber frame (Fi/Ta). This is supplemented by three massive service cores made of reinforced concrete. The spiral staircases between the service cores are also made of reinforced concrete. The façade consists of…

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