An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth (1888)
Gwilt, Joseph, 1784-1863, Papworth, Wyatt Angelicus Van Sandau, 1822-1894 · London Longmans, Green · leaf 440
. Example. Let AB be a piece of Riga fir 20 feet long, the scantling being10 inches by 6 inches. First take it in the upright position AB, then (frcn par. 16316 )the breaking weight W in tons of an oak pillar when the lo.id acts vertically down A B isVfjbiP 18 x6^ … w = -= 11-24 tons. id^ + -5l-i 14(5 + 200 And the strength of a pillar of Riga fir being (par. 1631e.) five-sixths that of oak, wehare W = 9;i7 tons for Riga fir. 1624. If we now place the piece in the horizontal position, as BC, the strain upon itfrom the load \\\ at C will be entirely transverse,…
Architecture · Architects
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