The Pamphlet Collection of Sir Robert Stout: Volume 50
Lecture VI. — Beams
Lectures, text-books, and class lessons, their separate uses.—Difference between a beam and an arch.—Untrussed beams of great size formerly used in roofing.—Means of stiffening a long purlin.—Trussed bressummers.—Under-trussed bridge beams.—Smite bridge.—Failure of Avon bridge.—Falls bridge, Melbourne.—Double-trussed beams.—Queen-truss bridges.—Standard N.Z. bridge designs.—American bridges.—Utica and Syracuse Railway—Bridges in Otira Gorge.—Example of Howe truss.—Boiler plate girders.—English practice.—American practice.—General remarks on bridge-building.—Fink truss.—Bollman truss.—Howe truss.—Murphy-Whipple truss.—Post truss.—Warren girder.—Linville truss.—Lattice girders.—Comparison of trusses.—Bowstring girders.—Inverted bowstring girder.—Double bowstring.—Saltash bridge.—Calculation of strains.