Building construction and superintendence, by F.E. Kidder ... (1896)
Kidder, Frank E. (Frank Eugene), 1859-1905 · New York, W.T. Comstock · leaf 134
R P on the plan. These purlins have a span of nearly 19feet, and hence it was necessary to brace them from the lower jointof the diagonal trusses, as shown by the dotted lines. There is apractical difficulty in using two full diagonal trusses of this shape(with wooden tie-beams), in that it is a… … Fig. 162. It was for this reason that the author adopted the method shownin Fig. 161, of one complete truss and two minor trusses. By ex-tending the main ties of the truss A io the rafters a strong joint ismade at the centre, and the weight of the half trusses being sup-ported by the stirrup from…
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