Building construction and superintendence, by F.E. Kidder ... (1896)
Kidder, Frank E. (Frank Eugene), 1859-1905 · New York, W.T. Comstock · leaf 68
rely by the question of economy the rise is generally made from6 to 7 inches in 12 inches. 32. CAMBERED TRUSSES.—With Fink or Fan trusses hav- TYPES OF STEEL TRUSSES. 59 ing an inclination for the rafter not exceeding 30 degrees it is moreeconomical to employ a horizontal chord or tie since it… … -French Truss with Vertical Struts.Span, SO ft. as in Fig. 69, presents a better appearance, however, than one witha horizontal chord, and for steep roofs, it will generally be fully aseconomical to raise the bottom chord because of the shortening ofthe members. Trusses with raised ties are…
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