Cyclopedia of Civil Engineering; A General Reference Work on Surveying, Highway Construction, Railroad Engineering, Earthwork, Steel Construction, Specifications, Contracts, Bridge Engineering, Masonry and Reinforced Concrete, Volume 6

Cyclopedia of Civil Engineering; A General Reference Work on Surveying, Highway Construction, Railroad Engineering, Earthwork, Steel Construction, Specifications, Contracts, Bridge Engineering, Masonry and Reinforced Concrete, Volume 6

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1914 edition. Excerpt: ... is 1 inch. The distance from 9 09 the pin to the end of the member is then--= 9-J inches, and the 5 distance to the center of the pin is 9J +--= 11 jj, say 12 inches (see Fig. 174). Rivets should be countersunk where necessary to prevent interference with I-bars. For signs, see "Steel Construction," Part III, p. 192, and Carnegie Handbook, p. 191. At point La of this member, the pin is 0 j inches in diameter, and, as previously mentioned, the legs of the angles are cut (see Fig. 175). The total bearing area required for one side is 9.70 = 4.88, and the required thickness is 0.781 inch. Subtracting the thickness 6.25 of the '.-inch web from this gives 0.2S1 inch. A pin-plate f inch thick must be used. The net area through the pin (26) must be 11.35 square inches. 2.02 square inches 5.88" 1.87" Fig. 175. Elevation and Section Showing Pin Connection at End of Truss. This net area, remembering that the angle legs are cut and therefore their area is that of a bar 3 by jj-inch, computed for one side, is as follows: Two Angles, legs cut, 3J by 31 by $-in. One Web 18 X i-6 X i sq. in. One Pin-Plate 11 X J-6 X sq. in. Total 10.37 square inches. This shows the section to be deficient, and the thickness of the pinplate must be made i inch. This gives a net area through the pin of 11.02 square inches. The distance between rivet lines (see Fig. 173) is 17J inches, and (44) the tie-plates must be 17 (say 18) inches long, and their 17.25 thickness 50 0.340 inch (say jj inch). The lattice bars (45) must be 2 inches wide, and (47) must be double. From (45) and Table XXV, page 219, the thickness must be r7fi inch, the distance c being 17.25 X secant 45 = 2 ft. 01 in. The design of the hip vertical UJ is also made in accordance...show more

Product details

  • Paperback | 108 pages
  • 189 x 246 x 6mm | 209g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 123684601X
  • 9781236846013