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  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Practical Treatise on the Properties of Continuous Bridges

Practical Treatise on the Properties of Continuous Bridges

Bender, Charles E.

Paperback

General World History

Currently unavailable to order

ISBN10: 1152588117
ISBN13: 9781152588110
Publisher: General Books
Pages: 62
Weight: 0.23
Height: 0.14 Width: 9.01 Depth: 5.98
Language: English
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. 1876 Excerpt: ...be added that this uncertainty also necessarily attends the chord strains, whose determination is especially difficult in those cord pieces which, at each passage of a train, have to bear compression as well as tension. There is no method to overcome this imperfection of the theory. In the following calculation we have separated the systems, and have supposed that each system would act independently. For the calculation of the forces Vc there arises another difficulty. The value p namely, is inflenced considerably by the total load on the second span. Two methods are possible, either to combine the system, 1, 3, 5, &c, 11 of the first span, with the system 1, 3, 5, &c, 11 of the other span, or with the system 2, 4, 6, &c, 10 of this second span. We, ., 13.900 have assumed, that instead of-------6,950 somewhat more, namely, 8,000 pounds would be the value of p (due to the second span) for each of the systems of the partly loaded span, Fig. 14. Page 47. The following tables exhibit the results of the calculation, which is made simply by adding the respective values taken from the preceding table. The shearing maxima A and V are now to be combined, so as to obtain the total maxima in each panel, such as represented on the diagram of forces. For the calculation of the diagonal and post strains, the two systems again must be treated separately. The diagrams for the chord and web strains in combination with the two tables referring to the web strains of each separate system, can now be used to calculate in the usual manner the members of the proposed bridge. For this purpose we choose a height of 25 feet (one-eighth of the span) and after consideration of the web strains in the end panels we arrive at the diagram of strains reprepresented. An ...

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