Economics of bridgework, a sequel to Bridge engineering (1921)
Waddell, J. A. L. (John Alexander Low), 1854-1938 · New York, J. Wiley · leaf 340
1 l(- / A - 1 -K ^, ^\ /- Xm \ /So cfeor 1 40 ■ ns 1 7f^ J Vertical-Lift Bridge Heel-Trunnion Bascule Fig. 30c. Layouts with No Flanking Truss-Spans. … 1 • m i /So c/eor 1 1 /Si 1 1 /7S \, 57/ -1 \ ^ Hccl-Trunnion Bascule Fio. 30(i. Layouts with Flanking Tniss-Simns. 12 feet, and often still more. This limitation does not apply to the Brownbalance-beam type, which can be rotated 90°. In making the comparisons, it was necessaiy to consider two…
Bridges
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