Section 102.—STRUTS AND TIES.
[1884]. Ordinary solid swelled distance rod with collars, used for compressive strains.
[1885]. Similar strut, but formed of tube with end collars screwed in.
[1886]. Double flat-bar cambered strut, stiffened by distance pieces and bolts.
[1887], [1888], [1889], & [1890]. Sections of varieties of the foregoing.
[1891]. Braced strut; usually of flat bars on edge, riveted together at the intersections.
[1892]. Tubular swelled strut, of plate iron, used for masts, sheer legs, crane jibs, &c.
[1893]. Built up strut, from segmental bars.
[1894]. Trussed strut; the trussing is 90° apart, but may be at any angle; the central bar of course takes the actual thrust, and the truss rods keep it from bending or buckling. See also [Nos. 295] to [300], [320].
Ties, for tensile strain only are usually of round iron, flat or other simple section, tube, or even chain, rope, or wire.
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