Civil Engineering Reference
In-Depth Information
For this roof form it is not technically impossible to provide a series of different shaped
trussed rafters simply fanned out around the dog leg. However, this is usually prohibitive
on cost as each truss would be a different shape because the span would increase while the
overall height would have to remain constant, necessitating a different jig setting for each
pair of trusses produced. This latter statement of course assumes both legs of the dog leg
are of equal span!
The solution illustrated in Fig. 6.8 assumes the use of a girder truss at the last point
