Various developments at the Körschtalschule, such as the growth of the community school or the all-day operation of the primary school, led to a lack of space, which was remedied by an extension.
The new building was designed in a modular timber construction and founded on a solid reinforced concrete floor slab with frost protection. The timber modules were prefabricated in the factory and assembled on site.
The structure of the modules can be described as follows, using a classroom as an example: a classroom was divided into three transportable individual modules. The modules were given a thin floor plate made of cross-laminated timber, beams in the middle of the room and side or partition walls to the neighboring room. The ceilings were designed as horizontal panels and firmly connected to the walls, which transfer the loads to the floor plate. The individual modules were temporarily supported and braced during construction.
In smaller areas where no modules were planned, individual timber ceiling elements were prefabricated and lifted into place. The interior was completed on site. The entire system is braced by continuous reinforced concrete and cross-laminated timber walls.
Since the new building was constructed while the school was in operation, disruptions to school operations and noise pollution from the construction site had to be kept to a minimum. Thanks to the innovative construction method, the construction time could be significantly reduced.
