Civil Engineering Reference
In-Depth Information
Figure 17.1: Timber bolts. Source: Myhre 1982
be used, as was the case during the nineteenth century, before mobile welding
was common place.
Timber
Joints
Timber joint technology is particularly well-developed in Japan, with a choice of
some 600 types. In Scandinavia there is a tradition of log construction with 10 to 20
different jointing techniques. Some structures such as stave buildings and vertical
load-bearing panelling often use grooves to fix external panelling (see 'Types of
structural walls', pp. 231-233). Nails are not necessary in this form of construction,
and where the fastening is part and parcel of the whole structural system it is known
as a 'macro-joint'.
Pins and bolts
The use of timber pins and bolts is particularly widespread in areas with early
forms of timber frame and stave building tradition. Pins of juniper, oak and
maple are considered the best, although other types of wood can be used. The
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