Cyclopedia of architecture, carpentry, and building : a general reference work . Fig. 58. Data for Example on Page 37 Fig. 59. Eave Detail for Fig. 57 3 750 pounds, the value of a |-inch rivet in bearing in a J-inch platewhen the allowable unit bearing stress is 20 000 pounds per squareinch. If the point of application of the reaction coincides with theintersection of the two chords, the number of rivets required will be: For L„ [/i ^|-^ = rivets. ^ ^ ^ 40 000 in p- . ,For Lo Li -o-r-yT, = rivets. Since the point of application of the reaction does not coincidewith the intersection
Cyclopedia of architecture, carpentry, and building : a general reference work . Fig. 58. Data for Example on Page 37 Fig. 59. Eave Detail for Fig. 57 3 750 pounds, the value of a |-inch rivet in bearing in a J-inch platewhen the allowable unit bearing stress is 20 000 pounds per squareinch. If the point of application of the reaction coincides with theintersection of the two chords, the number of rivets required will be: For L„ [/i ^|-^ = rivets. ^ ^ ^ 40 000 in p- . ,For Lo Li -o-r-yT, = rivets. Since the point of application of the reaction does not coincidewith the intersection of the chord, the number of rivets required in Jj^ U^ is; 3 750 n- - 45 000 7i = 6 X 45 000 the spacing being 3 inches; dividing by 3 750, we have: n- - V2n = 106. 5G. 251 I 38 ROOF TRUSSES Completing the square and solving for n, there is obtained: ?i = 6 + I = , say 18 number of rivets recjuired in Lg L^ is: o --n - onnnn ^ X 20 000 X 103 / oO 71- — 20 000 ?! = I! n r =i!= n ,^ r il Uu. nr
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Keywords: ., bo, bookcentury1900, booksubjectarchitecture, booksubjectbuilding
