Civil Engineering Reference
In-Depth Information
A stud frame for hempcrete, showing many of the details described on the
previous pages. Note the noggins; reinforced studs supporting the glulam
beam; diagonal bracing and roof joists bearing on the wall plate (instead of
being hung in joist hangers), where the junction between joist and wall plate
will be inside the hempcrete wall.
Diagonal bracing (racking strength)
Although the hempcrete provides stiffness to the frame, in all but the smallest frames the
engineer may insist that additional diagonal bracing is required to help the frame resist
racking (movement of the structure as a result of lateral stresses, e.g. wind loading). This
is usually provided by diagonal timbers of 150mm x 25mm section, or strips of 25mm ply-
wood ripped down to 150mm, but can also be achieved by stainless-steel strapping, or by
permanent shuttering board if this is being used.
Diagonal bracing is fixed after the main frame has been erected, so that these timbers can
be fixed across as many frame elements as possible to improve their effectiveness.
Search WWH ::
Custom Search