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steel connectIons
the connections between the different wood
components are all made out of steel, which is mainly
hidden in the wood. caused by the special shapes
and requirements, all the connections had to be
customized for the project, that’s why we made them
on our own.
the main structure such as the core demanded three
different steel shapes: footings for the four corners,
footings for the middle columns and the core columns
with different angles, a cross for the connections
between the diagonal bracing and plaids for the
corners. the plaids are located where the beams are
touching on the corners and have the purpose to hold
them toghether and take horizontal loads.
after grinding, sawing, welding and drilling the
steel plaids, they had to be galvanized to make them
resistent against corrosion.
the over all system for the connections is a slot in the
wood in which the steel can be put in and fixed with
fitted bolts, so that you can only see the bolt from the
outside. the bolts have a diameter of 12mm and the
amount is depending on the horizontal load/ wind
loads, so has the middle cross more then the footings.
to fix the footings to the concrete slap, we drilled
holes, filled them with special glue and put a bolt in.
these had to dry for some hours to be as stabil as we
need it.
to give the wood the possibility to move, the holes
in the steel plaids connecting the structure to the
concrete are oval. this feature is preventing the
wood from cracking and belongs to the category
„constructive wood protection“, such as the 50mm gap
between the slap and the construction. due to that the
wood is protected from upcoming moisture.
mIddle cross connectIon
mIddle loWer column connectIon
corner connectIon