Multifamily residential buildings in Zollikerberg

Residential construction, Switzerland

THEURL was able to use the innovative TS3 technology for the first time in the realisation of the two apartment buildings. In line with the timber construction of the future, the process enables large support grids and flexible floor slabs.

Exterior view of Zollikerberg apartment blocks with CLTPlus

Project information

Use: Multifamily residential buildings
Location: Lake Zurich shore in Zollikerberg
Completion: 2021
Theurl products used: 461 m³ CLTPLUS ceiling elements

Project partners

Timber construction: Holzbau Höck, Kundl
Architecture: merkli degen architekten eth
CLTPLUS further processing: Balteschwiler AG
Technology: Timber Structures 3.0 AG

THEURL realises project with TS3 technology

In order to be able to build in an ecologically and economically sustainable way today and in the future, architects and planners must pay particular attention to the choice of building materials in addition to the construction and use them specifically where it makes the most sense. More and more experts are turning to wood: short to no drying times, smaller foundations and cosy rooms are just some of the advantages offered by this naturally renewable raw material. Thanks to TS3 technology, new possibilities are now opening up once again.

Pioneering timber construction

For the desired skeleton structures without support beams made of wood with slim, point-supported panels for the two apartment buildings in Zollikerberg, THEURL implemented the TS3 connection using joint filling for the first time in the factory. As a licence partner, TEAMTHEURL was thoroughly trained in the production of TS3 joints by Timber Structures 3.0 AG in advance, thus opening up completely new possibilities for its customers in timber construction, both aesthetically and structurally.

"TS3 is changing the world of construction."

Why do you rely on TS3 technology?

With the help of Timber Structures 3.0 technology, or TS3 for short, it is now possible to realise exposed ceilings with enormous large spans and without the use of beams.TS3 connects cross-laminated timber via its end face in a flexurally rigid manner to form endlessly large ceiling panels that are load-bearing in two directions. This means that buildings can be planned in concrete but constructed in timber. This makes TS3 a technology that has the potential to change the world of construction in the long term.

Daniel Küng, Head of Woodworking Centre, Balteschwiler AG

Solution approach

In the case of the kick-off project in Switzerland, a total of around 461 m³ of CLTPLUS was delivered – 255 m³ of which was delivered directly to the construction site with TS3 joints bound and on time, while the rest was delivered as raw boards without joinery to our partner Balteschwiler AG in Laufenburg for further processing. A total of 520 metres of TS3 joints were produced for this project alone.

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Result

Another plus point: due to the low thermal conductivity of wood, no complex cantilever connections were required for the CLT ceilings running from the flat to the loggia – thermal bridges will therefore only play a minor role with this technology in the future.

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