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Structural Engineers' Handbook; Data for the Design and Construction of Steel Bridges and Buildings - Softcover
Synopsis
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. 1918 edition. Excerpt: ...and D-B. The true curve is then easily constructed and pole O1 is located. If the bunker is surcharged by vertical walls as shown in (e) the curve is extended until it meets the slope of the material, and the span and sag are to be used as shown. Deep Bins.--For the calculation of the stresses in deep bins, see the calculation of the stresses in grain bins. Chapter IX. For methods of calculating the stresses in hopper bins with the top surface surcharged, and the calculation of the stresses in bin bottoms and circular girders, see the author's "The Design of Walls, Bins and Grain Elevators." Angle of Repose.--The angle of repose and the weights of different materials are given in Table IX. DATA.--For angles of internal friction, see Table IX, and for angles of friction on bin walls, see Table X. TABLE IX. Weight And Angle Of Repose Of Coal, Coke, Ashes And Ore. Coal, ore, etc., will give an angle of t = 40 if the material is dry, but if the material is wet the angle of repose may be increased to nearly 90. Angle of Friction on Bin Walls.--The values in Table X may be used in the absence of more accurate data. TABLE X. Angle Of Friction Of Different Materials On Bin Walls. Typi'catSection through flxkets. Fig. 12. Coke And Stone Bins, Lackawanna Steel Co. Self-cleaning Hoppers.--In order to have hoppers self-cleaning when the material is moist it is necessary to have the hopper bottoms slope at an angle considerably in excess of the angle of repose if or angle of friction t'. the pockets on the Great Lakes are made with hopper bottoms at an angle of 48 40' to 50 45', but the majority are at an angle of 49 45'. Bituminous coal will slide down a steel chute at an angle of 40 and a wooden chute at an angle of 45. Anthracite coal...
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- PublisherRareBooksClub.com
- Publication date2013
- ISBN 10 1230006362
- ISBN 13 9781230006369
- BindingPaperback
- LanguageEnglish
- Number of pages224
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