Pocketbook of Useful Formulæ and Memoranda
for Civil and Mechanical Engineers

131 OF ENGINEERING FORMULÆ, Beams on the Slope. W = Breaking weight lor hori- zontal beam. L = Span on horizontal line. S — Span on slope. w = Breaking weight of beam on slope. WS Beams Unequally Loaded. W = Breaking weight fur load applied at centre as found by formula. v: — Breaking weight for beam unequally loaded. L = Length of beam or “ span.” x & y = Distances of load from point of support. Deflection of Beams. L = Length of beam. W = Load on the beam. I = Moment of inertia due to the section. E = Force corresponding with modulus of elas- ticity. M = Coefficient varying with the mode of sup- porting the beam and applying the load for values of M. WL’M D — Deflection. D = —— K 2