School building extension with TS3 technology
26.08.2021
The Feld school building in Richterswil is being topped up and renovated at a cost of 7.6 million Swiss francs. Around four million Swiss francs of this will be invested in the two-story addition using TS3 technology. This will create an additional 1,542 square meters of space for classrooms, group rooms and a music room.
The two additional floors on the school building Feld solve the space problem in the municipality of Richterswil. On an area of 1,542 square meters, several classrooms, group rooms and a music room will be created. The project includes a total of 300 square meters of reserve space, which can be which can be integrated into school operations as needed. In this way, the council is taking into account the longer-term population development of Richterswil.
Large-format panels
with TS3 technology
A 34 cm thick board barrier was installed on the existing roof of the school building.
34 cm thick cross laminated timber panel was installed as a load distribution panel. It enables
a flexible room layout in the extension, independent of the existing load-bearing structure below,
existing load-bearing structure. The two-story extension now stands on the
storey extension now stands on it.
The TS3 technology is used
load distribution slab, the floor slab and the roof of the storey
and the roof of the extension. Schilliger Holz AG delivered pre-treated
plywood panels, which were grouted on site with a jointing resin to form large
resin to form large homogeneous large-format panels. Depending on the floor, the panels have a thickness
between 280 and 340 millimeters and are up to 13.5 meters long. A total of
540 meters of TS3 joints were created. Saxer Holzbau recently completed the erection work.
completed.
The cross laminated timber panels were pretreated in the factory and provided with sealing and segmental bands (white and black bands on the face). (white and black bands on the front side). After positioning, they were joined together by joint grouting. On the Finally, on the underside of the ceiling, the joint is hardly visible. Beams are no longer necessary.
TheTS3 technology
The TS3 technology is the result of over ten years of research and
of Timbatec Holzbauingenieure Schweiz AG together with ETH
Zurich and the Bern University of Applied Sciences in Biel. The process connects
wood components to each other on the face side by joint grouting and without pressing pressure.
Together with the specially developed connection detail at the column head, the TS3 technology enables
TS3 technology enables biaxial
and point-supported large wooden surfaces - without the previously customary
beams. These large surfaces are ideally suited for floor slabs such as those used for the
addition to the Richterswil school. Installations can be installed without
installations can be installed without obstacles and continuously adapted to changing requirements.
ceilings do not require load-bearing walls. This allows flexible room partitioning and simple conversion of the rooms.
of the rooms.
Service Timbatec
Timbatec
advised the general contractor Allreal already in the competition phase and then
and then accompanied the project as timber construction engineer. Our services included
in particular the project planning and the detailed planning including the works planning,
the cost estimation, the tendering and finally the supervision of the execution.
execution.