The American house-carpenter; a treatise on the art of building, and the strength of materials (1867)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York, J. Wiley · leaf 185
, in feet; and the quotient will be the horizontal thrust, when the cer tre of gravity occurs at the middle ofthe beam. 172 AMERICAN HOUSE-CAKPENTER. If the inclined beam is loaded with an equally distributedload, add this load to the weight of the beam, and use thistotal weight in the rule instead… … Fig. 217. 279.—In Fig. 217, two equal beams are supported at theirfeet by the abutments in the tie-beam. This case is similar tothe last; for it is obvious that each beam is in precisely theposition of the beam in Fig. 216. The horizontal pressures atB^ being equal and opposite, balance one…
Carpentry · Architecture
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