The Influence of the Form of a Wooden Beam on Its Stiffness and Strength I : Deflection of Beams with Special Reference to Shear Deformations (1924)
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ches wide, 4.97 inches deep, and was tested over spans starting at 14 feet and reduced by 2-foot intervals after each test to a span of 10 feet and then by 1-foot intervals to a span of 2 feet. Evidently the constant value which this curve would approach with longer spans is about 1,600,000 pounds… … Span depth ratio -Span in feet Fig. 3—Relation of span to value obtained by substituting deflections in Fig. 4.—Relation of span to value obtained by substituting measured pi% — =7 Pfi deflections in 48 Ah 48AI' over-all length with a consequent variation in overhang as the span was changed.…
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