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 388
cation to the Pointed Arch, 1401. The model which fig. 575. represents was of the same lunghtand width as the last, and the voussoirs were all jf ecjual tliifkuy .s.Having laid down all the lines on the figure as before, we shall tiud /Kof tile formula to be x=/2p + ^^^=^+* — wherein KL - 7)iL -… … Ipd—^mc 15870—8220 = 6 8; Tlie height of the pier, represented by a, being 120, we have ^^ -^ j,q 6, or FT X AB, will be 86 x 9 = 774 ; whence -= ^.,^ = 6 •45, and j^ = 41 -60. Substitutingthese values in the fornmla x= a/252+63-8 + 41 •6-6.45=12-46 lines for the thickness of the pier.In taking the…
Architecture · Architects
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