sed. TheSpecifications, in Art. 20, require asystem of overhead sway bracing as shownin Fig. 16. For this bracing 5-inch by6.5-pound channels and 7/8-inch rods willbe employed. 3ottom Lateral System.—In the plane of the lower chord the strutsare replaced by the floor beams. The areas required in… … Fig. 16.Sway Bracing, \ I J 39 be supplied by a rod 13/8 inches in diameter. For the remainingdiagonals 1 3/l6-inoh rods will be used. These give excessivecross—sectional area hut are the smallest permitted by the Speci-fications. The Portals.—The horizontal strut was designed in the same manneras…
Bridges · Concrete bridges · Iron and steel bridges · Theses
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