Practical Treatise On the Construction of Iron Highway Bridges for the Use of
The book Practical Treatise On the Construction of Iron Highway Bridges for the Use of was written by author Alfred Pancoast Boller Here you can read free online of Practical Treatise On the Construction of Iron Highway Bridges for the Use of book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Practical Treatise On the Construction of Iron Highway Bridges for the Use of a good or bad book?
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Per square inch would have a value of 10, 000 X "X = 3300 Ibs. If the maximum horizontal strain is divided by 3300 Ibs. , there results the minimum number of rivets required either way from the point of such strain. Owing, however, to the greater intensity of the horizontal increments of strain of the web toward the ends, the rivets should be spaced closer as the ends are approached. Applying these rules to the girder previously computed, the loading o which brought the maximum strain at the ce...ntre, this strain was found to be 69, 200 Ibs. ; and using a f-inch web and rivets as above, we find that the number of rivets required either way from the centre to the ends, a distance of 90 inches, will be (~jr) about 2 1, which, if uniformly pitched, would be spaced a shade over 4 inches between centres. It will be better, however, for the reasons above given, to use more rivets, spacing them 3 inches for the first end quarter, or for 45 inches, WEB-STIFFENERS. I i 7 f the balance being 44 inches pitch.
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