Adams, Henry · London, New York [etc.] Longmans, Green, and Co. · leaf 163
Stability of Stone Pinnacle—Pier at angle of Porch—Railway Bridge Abutment—Church Buttresses—Counterforts—Flying Buttresses. Thekb are various interesting andspecial cases of stability that may now beconsidered. Fig. 449 shows a stonepinnacle reduced to its simplest elements.Assume it to be of… … fieoibs I Base, sosquare will be AB X BC 3 X 5-8 = 8-7 sq. ft., 2-2and assuming a horizontal wind pres-sure of 42 lbs. per sq. ft., the total hori-zontal force wUl be 8-7 x 42 = 365-4 lbs.Part of this will slip off and the re-mainder will act normal to the surface,which by triangle of forces is…
Building · Structural analysis (Engineering)
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