Structural Design for Architecture
Fig. 6.33 Detail of
large one-off timber
truss.6.6.6 Joints
6.6.6.1 Introduction
Joints in structural timber are made either by
direct bearing of one element on another, as in
the case of joists bearing on a wall-plate or on
joist hangers (Fig. 6.34) or with the aid of
fastening components which transmit the load
between elements in lap-type arrangements
(Fig. 6.35). The design of the direct-bearing
type of joint is straightforward and is rarely
critical in determining the feasibility of a struc-
ture. Lap-type joints between elements in
trusses, skeleton frames or built-up-beam
210
Fig. 6.34 Timber joists are normally supported by direct
bearing, either on a wall-plate, as in (a) or on joist
hangers, as in (b).Oversite concrete Oversite concrete(a) (b)