Architectural Iron and Steel, and Its Application in the Construction of Buildings; ... with Specification of Iron-Work. and Selected Papers in Relation to Ironwork, from a Revision of the Present Law Before the Legislature, Affecting the

Architectural Iron and Steel, and Its Application in the Construction of Buildings; ... with Specification of Iron-Work. and Selected Papers in Relation to Ironwork, from a Revision of the Present Law Before the Legislature, Affecting the

By (author) 

List price: US$14.80

Currently unavailable

Add to wishlist

AbeBooks may have this title (opens in new window).

Try AbeBooks

Description

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. 1892 edition. Excerpt: ...bar; L = span in feet. Example. To find the uniformly distributed load of a 6" X i" flat bar used for a floor light with a span of 6 feet. Deduct one square inch of area for loss of section by the one-inch cross-bar. The bar loses in area by the holes punched for the rebate bars, but gains again by the addition of the bars. Then by formula, c c i A 2.6 X S X 6 Safe load =, --= 4.3 tons. 3X0 To find the deflection for the above bar under the same load uniformly distributed: T-x n. WL 4.3 X 216., Deflection =-= j-y6 = 0.107 of an inch. To prevent the glass from being broken, the deflection should not be over.33 of an inch in centre of span. 164. Skylights.--In nearlyevery building a skylight in one shape or another is required, and almost invariably it is inserted for ventilation as well as light. Single-pitch skylights should not have less pitch than two inches to the foot. In double-pitch hipped skylights the angle should be 33 degrees or 8 inches to the foot; for instance, a skylight with a span of 12 feet should have the ridge 4 feet high. The curb should be from 4 to 6 inches above the roof: if ventilators are placed in the curb, it should be from 12 to 16 inches high. For ornamentation various kinds of glass may be used--opalescent, crown disks, pressed, fancy, fluted, etc. The best glass for skylight purposes is rough plate or fluted, and the following thicknesses are proportionate to the sizes: 15" X 40" X TV thick; 16" X 60" X " thick; 20" X 100" X " thick. Rough plate is to be preferred to fluted; it will admit more light, while it is equally translucent. The flutes often become filled with dust and dirt, which will accumulate and be held in the recesses of the fluting. For...show more

Product details

  • Paperback | 48 pages
  • 189 x 246 x 3mm | 104g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236784014
  • 9781236784018