The apprentice, or First book for mechanics, machinists, and engineers (1860)
Byrne, Oliver · New York, P. J. Cozans · leaf 111
point of overturning. Marshal Vauban considered,that the modulus of a good structure ought to be about I. PRESSURE OF ROOFS. Ques. 6. Let C A, and Q A, be the rafters of a roof rest-ing upon the side walls C and Q. It is required to deter-mine the thrust on the points C and Q, the roof being… … Find the weight of each side of the roof one foot long,and let a weight W, be suspended from A equal to half tliesum of these weights, then one half of the whole weightupon the rafter, C A, will act perpendicularly upon thewall at C, the other half acting in the weiglit W ; and inlike manner one…
Mechanics, Applied
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