Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 95
nd I denoting the loadand length respectively. Here — ■Wl=—.X 1,200 X 8 = 1,200 foot-pounds, or 1,200 X 12 = 14,400 inch-pounds. The section modulus equals 2.42 -^ 2.28 = 1.06; hence ^, 14,400 _ S = .. . ■ = 13,585 pounds per square inch. This is the unit-fibre stress on the lowest fibre at the… … ^«^-J
Architecture · Building
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