Mechanics of engineering. Comprising statics and dynamics of solids: and the mechanics of the materials of constructions, or strength and elasticity of beams, columns, arches, shafts, etc (1888)
Church, Irving P[orter], 1851- [from old catalog] · New York, J. Wiley & sons · leaf 476
now that OB is the abut-ment-line of the required special polygon, and that . *.its pole must lie on a horizontal through n. It remainsto determine its H, or pole distance, by equation (1) justgiven, viz.: 2? yy = 2?yz. First by § 375 find the valueof the summation 2f(yy), which, from symmetry, we… … 2/i*i +2/2*2Hnh. + 2/3% +y& = 2\(yz) = H0(k+kr Again, since 2\ (yz)= y8z8 + 2/7*7 + 2/6*6 + 2/5*5 whichfrom symmetry (of rib) = 2/l*8 + 2/2*7+2/3*6 + 2/4*5, we obtain, Fig. 428, Il(2/*) = #o&r,(same H0); and .-. If now we find that ki+kt=2h 464 MECHANICS OE ENGINEERING. the condition 2f…
Mechanics, Applied · Engineering · Strength of materials
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