The structure of the building is designed entirely in timber. The main structure consists of a row of 35 identical portal frames in glued-laminated timber (span 9 m; spacing 4 m). Each frame is composed of two single columns and a double beam. This robust geometry makes it possible to create rigid joints in a simple way using a grid of bolts. The beams of the frames cantilever on both sides, naturally forming the overhangs on the exterior of the building. The columns are connected to the foundations using steel fins. A secondary roof structure of timber joists was placed either between (insulated areas) or on top of (non-insulated areas) the frames. These timber joists also cantilever at the gable ends of the building, creating additional overhangs. The frames (with rigid joints) provide the building with horizontal stability in the transverse direction. In the longitudinal direction, horizontal stability is ensured by three rigid cores in concrete and masonry. Wind bracing is therefore unnecessary. All these structural elements have been carefully detailed and deliberately left visible. In this way, the structure becomes architecture and determines the appearance of the building. The care devoted to this gives the building a refined and honest expression. We also keep in mind that the building is designed for children: it can be read in a didactic and educational way, allowing everyone to see how the beams support one another and how the structural principles “work".

Belgian Timber Construction Awards (3th prize) category ‘Non-Residential Buildings’: new construction of the camping, playing and learning domain ‘De Warande’, Heule (1312-17-WAR), architect : Dertien12 architectuuratelier, in coll. aRCHITEC and studio Basta