Germany – Load-bearing structure design services – Grundschule St. Veit - Tragwerksplanung

The city of Mayen intends to replace and rebuild a gymnasium with a canteen and additional classrooms on the site of the St. Veit primary school in Mayen. The new building is planned as a multi-storey structure in timber frame or solid timber construction. A combined use of sports, canteen, and school areas is planned. The new building directly adjoins the existing school building, creating a closed building structure. In some areas, the building sections interlock over two storeys, creating a barrier-free connection between the corridors of the existing and new buildings. The ground floor will house a single-span sports hall and a canteen, including the necessary ancillary, storage, technical, and functional rooms. Both the sports hall and the canteen are planned as large, largely column-free usage areas, thus placing increased demands on structural design and structural engineering. On the 1st floor, a gymnastics room with associated ancillary rooms is planned. On the 2nd floor or attic floor, classrooms and further educational spaces will be located. Due to the different uses stacked on top of each other, the large spans in the sports hall and canteen on the ground floor, and the planned multi-storey timber construction, special requirements arise for the structural design. This particularly concerns the load transfer from the upper floors, the design of an economical and sustainable structure, the building stiffening, and the assurance of usability. There are also particular planning requirements regarding the vibration behaviour of the supporting structure, the enhanced sound insulation between the different usage areas, and the structural fire protection in timber construction. Furthermore, early and close coordination with the design and other specialist planning is required. The roof surfaces are planned as a flat roof construction with extensive or intensive green roofing. Additionally, the installation of a photovoltaic system is planned. The structural design must therefore take into account the additional effects of roof greening, water retention, substrate structure, snow and traffic loads, photovoltaic system including substructure or supports, wind and wind suction loads, and other technical roof structures. Additionally, the requirements of building physics to be developed as part of this contract must be taken into account in the structural design. This particularly concerns requirements for minimising thermal bridges, airtightness, structural connections, material and component structures, and the integration of energy and sound insulation requirements into the supporting structure. Between structural design and building physics, an intensive and continuous coordination process must be ensured during all planning phases to implement the structural, energy, and sound insulation requirements in an economical and professionally coordinated manner. The subject of this tender is the performance of structural design and the following described performance of building physics for the planned replacement and new construction of a gymnasium with a canteen, kitchen, and classrooms on the site of the St. Veit primary school in Mayen. The replacement and new construction is to be erected as a multi-storey building in timber construction. Due to the chosen method of construction and the different usage areas, there are increased requirements for the static conception, the building physics planning, and the energy quality of the building. The tendered services are therefore interdisciplinary and must be provided in close coordination with the design and other specialist planning. The services to be awarded include structural design according to §§ 49 ff. HOAI in phases 1 to 6.