STRUCTURAL DESIGN FOR ARCHITECTURE

Timber structures

Fig. 6.25 Plyweb

beams are built-up-

beams with sawn-

timber flanges and

plywood webs.

Composite elements

such as this are used to

extend the span range

of traditional joisted

forms of construction.

Note the web stiffeners

in the beams here

which are positioned at

the support points

where shear loads are

high.

Fig. 6.26 Built-up lattice beams. Proprietary components such as these are used, like plyweb beams, to extend the span
ranges of traditional forms of timber construction.^205