Structural mechanics; comprising the strength and resistance of materials and elements of structural design (1905)
Greene, Charles E. (Charles Ezra), 1842-1903, Greene, Albert Emerson. [from old catalog] · New York, J. Wiley & sons; [etc., etc.] · leaf 108
the majority of cases the weight of the beam itself may be neglected, unless the span is long. 93. Beam Supported at Both Ends; Uniform Load of wper unit over the whole length /; origin at left point of support. Mx = %w(l—x)x.d2v wdx2 2EPdv w FLEXURE AND DEFLECTION OF SIMPLE BEAMS 93 From… … Fig. 47 For maximum safe deflection consistent with a unit stress,/, in the extreme fibre at the middle section, i(w/)/=-; wl=^; 1=75 5 P 48 Eyi Examples--A pine floor-joist, uniformly loaded, section 2X12 in.,span 14 ft. = 168 in., has deflected f in. at the middle. Is it safe?£=1,500,000. By the…
