Triple wall

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Element walls, stacked for shipping
Cavity wall elements already standing in the transport scaffolding on the construction site; you can also see that openings are left out within the element (with wood, far right in the picture)
Cavity wall elements already set up; all cavity wall elements are already set up and braced with steel studs; the foremost element is already filled with concrete, the others are still being filled.

A triple wall , also double wall, element wall , lattice girder wall , three-chamber wall or cavity wall , is a wall that consists of two prefabricated reinforced precast concrete slabs approx. 6 cm thick and connected by lattice girders . Like the elements of a lattice girder or element ceiling , the wall components are concreted out on the construction site and thus also form the concrete formwork . This construction method represents a recognized rule of technology . Triple walls are regulated by general building inspectorate approvals from the German Institute for Building Technology .

The economic advantage of this type of construction lies mainly in the saving of formwork for concrete and reinforced concrete walls.

The construction with triple walls is often used for the construction of cellars in private prefabricated houses. The wall surfaces are very even and smooth. After the joints have been filled, the walls can usually be painted or papered directly. This eliminates the need for cleaning work. This also makes this design a very economical construction.

Triple walls can also be used to build watertight constructions, so-called white tubs , if additional measures are taken into account .

The element walls are also particularly suitable for direct extensions to existing neighboring buildings, as there is no space for formwork.

literature

  • Lohmeyer, Ebeling: The triple wall for basements - economical combination of precast concrete slabs and in-situ concrete; concrete 46 (1996)
  • DAfStb guideline: "Water-impermeable concrete structures" (WU guideline) Beuth Verlag Berlin (2003)

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