The American house-carpenter; a treatise on the art of building, and the strength of materials (1873)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York : J. Wiley · leaf 178
g it in o and o ; then f o will bethe horizontal thrust at J3, and e o at A / these will be foundto equal one another. When the rafters of a roof are thugconnected, all tendency to thrust the walls horizontally isremoved, the only pressure on them is in a vertical direction,being equal to the… … Fig. 211. 269.—J%. 210 and 211 exhibit methods of framing for sup-porting the equal weights, W and TF. Suppose it be required 164 AMERICAN HOUSE-CARPENTER. to measure and compare the strains produced on the pieces,A B and A C. Construct the parallelogram of forces, e bf d,according to Art. 258.…
Carpentry · Architecture
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