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Minutes of Proceedings of the Institution of Civil Engineers Volume 128 download ebook

Minutes of Proceedings of the Institution of Civil Engineers Volume 128 download ebook

Minutes of Proceedings of the Institution of Civil Engineers Volume 128. Institution Of Civil Engineers

Minutes of Proceedings of the Institution of Civil Engineers Volume 128
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Author: Institution Of Civil Engineers
Page Count: 166 pages
Published Date: 01 May 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: Englishhttps://d39ttiideeq0ys.cloudfront.net/assets/images/book/large/9781/1303/9781130355833.jpg
Format: PDF
ISBN: 9781232307204
File Name: Minutes.of.Proceedings.of.the.Institution.of.Civil.Engineers.Volume.128.pdf
Download Link: Minutes of Proceedings of the Institution of Civil Engineers Volume 128
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1897 Excerpt: ... per lineal foot, or a concentrated load of 16 tons, with 9 J tons on a pair of wheels. The wind-pressure allowed for is 56 lbs. per square foot on the exposed surfaces of curbs, stringers, and ends of planking, and on twice the area of the handrails, ends of transverse girders, top and bottom chords, braces and verticals, the whole being regarded as a uniform moving live load. The colony is subject to violent gales, a remarkable one being the Dandenong gale in September, 1876, during which a velocity of 153 miles per hour, equal to a pressure of 117 lbs. per square foot, was recorded at the Sydney Government Observatory; but such phenomenal pressures extend only over small areas. Many of the existing structures throughout the colony would not now be standing had they ever been subjected to pressures approaching that allowed for in the Wagga Wagga bridge, which may be regarded as somewhat in excess of actual requirements. The bridge was opened for traffic on the 11th November, 1895, and consists, Figs. 2, of six timber trusses resting on cylindrical iron piers and a concrete abutment, forming three spans, each 110 feet 3 inches long, and nine approach spans each 35 feet long. The carriageway is 24 feet 4 inches wide, whilst one 4-foot 6-inch footway is arranged for on the up-stream side of the bridge. The comparatively large carriageway is necessitated by the requirements of the wool traffic which crosses the structure, a loaded wool-wagon measuring 11 feet 6 inches over all. The trusses, Figs. 3, stand 27 feet 1 inch apart from centre to oentre, and are connected at the top and bottom by a system of lateral bracing, consisting of timber transverse struts and wrought-iron diagonal tie-rods; angle-and portal-brackets being provided in the top lateral system....

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