A Practical Treatise On Bridge-Construction: Being a Text-Book On the Design ...
A Practical Treatise On Bridge-Construction: Being a Text-Book On the Design ...
Fidler, Thomas Claxton, 1857-
The book A Practical Treatise On Bridge-Construction: Being a Text-Book On the Design ... was written by author Fidler, Thomas Claxton, 1857- Here you can read free online of A Practical Treatise On Bridge-Construction: Being a Text-Book On the Design ... book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Practical Treatise On Bridge-Construction: Being a Text-Book On the Design ... a good or bad book?
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-Total -0- -1-250 - 1^250 -1-250 -1-250 -1-250 -1-256 -1-250 -1-250 -12-500 Sum 12-600 0- 0^ 0- 0- 0- 0- 0- 0- -12-500 Adding up the positive and the negative stresses, the totals give the horizontal components of the greatest compressive and the greatest tensile stress that would take effect in the diagonals under different positions of the rolling load. 336 CONSTRUCTION OF BRIDGES. In every panel of the web bracing, the positive total is equal to the negative total, and is exactly equal to on...e-tenth of the maxinmin horizontal stress in the flange& If we divide the girder into any other number of panels, we shall find that in every case the maximum •a horizontal stress in any diagonal is expressed by ± A» -r^, in which K is the number of panels, and H, the flange-stress |^- due to the rolling load. It may be remarked that a strict mathematical investigation, based upon the assumption that the train is of uniform weight throughout its length, would lead to a slightly different result^ and would give for each diagonal of the web But we have already seen that the stresses derived from the table are in practice nearer to the truth than those which may be calculated "a upon that basis; and as before we shall prefer to take ±h — ^ In a single system of bracing, such as that of Fig.
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