A prefabricated building system for apartment buildings made of wooden panels with a concrete supporting structure.
TiCo (Timber Concrete) is a proposal for a flexible building system solution for the construction of multi-storey, energy-efficient apartment buildings of the new generation, synergistically using the advantages of light load-bearing structures based on wood and subtle load-bearing structures based on high-quality concrete with maximum use of precise prefabrication.

The system was designed as part of the project "Flexible building system based on wood and high-quality concrete for energy-efficient apartment buildings" from the MPO Trio program (project number FV10685). We collaborated on the project with the companies RD Rýmařov s.r.o. and ŽPSV a.s. The environmental impacts of the building were calculated in several ways on the project.

About the result

The development of the system was based on the cooperation of two important manufacturers of building structures, RD Rýmařov s. r. o. (manufacturer of prefabricated wooden structures) and ŽPSV s. r. o. (manufacturer of reinforced concrete prefabricated structures) and the University Center for Energy Efficient Buildings of the Czech Technical University in Prague, which deals with research and development of wooden and concrete structures.

Both main materials have their technological and physical limits, and TiCo solves them. The use of wood as a structural material for the load-bearing structures of multi-storey buildings is possible, but disadvantageous - static design leads to larger cross-sections of structural elements, which take up more space in the floor plan, and also leads to high cross-sections of load-bearing elements of ceiling structures, which mean higher structural heights than would be necessary and optimal. Another problem is the greater deformability of the wooden structure with regard to the small modulus of elasticity of the wood, as a result of which failures of subsequent structures can often occur (cracks in partitions, perimeter casings, soffits and their surface layers). Considering the small area weight of wooden ceiling structures, acoustics are also a frequent problem.

For the reasons mentioned above, the use of a reinforced concrete structure for the load-bearing part of the building was proposed. The load-bearing framework made of high-quality concrete brings the following strengths to the TiCo system:

  • high carrying capacity
  • long life
  • fire resistance
  • favorable acoustic properties in terms of soundproofing (airborne and footfall) between residential units through ceiling structures
  • advantageous thermal accumulation properties (potential of concrete ceiling structures for accumulation of heat and cold)

On the other hand, there are advantages of wood-based constructions for cladding the building and interior partitions. These include:

  • low weight
  • low material demand
  • low carbon footprint
  • low energy consumption of production
  • excellent heat-insulating properties at a small thickness