The Strains in Framed Structures: With Numerous Practical Applications to Cranes, Bridge, Roof and Suspension Trusses, Braced Arches, Pivot and Draw Spans, Continuous Girders, Etc (Classic Reprint)

Augustus Jay du Bois

ISBN 10: 0266577431 / ISBN 13: 9780266577430

Editore: Forgotten Books, 2018

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• Titolo: The Strains in Framed Structures: With Numerous Practical Applications to Cranes, Bridge, Roof and Suspension Trusses, Braced Arches, Pivot and Draw Spans, Continuous Girders, Etc (Classic Reprint)
• Editore: Forgotten Books
• Data di pubblicazione: 2018
• Lingua: Inglese
• ISBN 10: 0266577431
• ISBN 13: 9780266577430
• Rilegatura: HRD
• Condizione: New
• Peso: 782 grammi

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Riassunto

Excerpt from The Strains in Framed Structures: With Numerous Practical Applications to Cranes, Bridge, Roof and Suspension Trusses, Braced Arches, Pivot and Draw Spans, Continuous Girders, Etc

TO those who make use of this work, whether teacher or student, a few words as to its plan may be of service.

The work is divided into two parts. Part I. Consists of two sections. Section I. Gives, in four short chapters, the principles which lie at the bottom of all methods of calculation. In these chapters all unnecessary detail has been avoided, the object being to familiarize the student first with the fundamental principles. Each chapter contains the ground-work of a separate method of calculation, and the same illustrative example is used in each. The student who has thus familiarized himself with the four fundamental methods of calculation, can afterwards combine these methods in the solution of any particular case, as may seem best. It is believed that every method in use will be found on analysis to be a combination of two or more of the methods set forth in these first four chapters, and, so far as known to the writer, the present work is the only one in which such division has been made, and each method given clearly by itself independently of the others.

In section II. The application of these methods to the solution of various structures is given with all necessary detail. It has been the aim of the writer to make this section very complete in full Solutions of every existing form of bridge. The student, already familiar with the four fundamental methods, is now in no danger of being confused by detail, and can easily devise for himself other methods of solution for individual cases, as good, or even better, than those given. In Chapter I. Of this section will be found a more complete treatment of Roof Trusses than has been thus far given in any work known to the writer.

In Chapters III. And IV. A Simple bridge girder is taken, and calculated fully, first by each of our four fundamental methods, and lastly by that combination of methods which seems best adapted to the case in hand. The remainder of the section gives the complete calculation of every form of bridge known, each case illustrated by an example carefully worked out. In Chapters VI. To VIII. Upon the continuous girder, pivot or swing bridge and braced arch, much new matter will be found, and it is thought that the methods given will commend themselves as practical and easy of application. Whatever may be thought of the comparative advantages or disadvantages of these forms of bridges, they cannot well be omitted from a work which aims at any degree of completeness. For the average student, perhaps, so full a course is not desirable, at least at first, and therefore the attempt has been made by means of finer print to mark out two courses of study. In any case the intelligent teacher will know what to omit, and it is no disadvantage to a student to be possessed of a Text Book which includes more than he has been able to read, and which may, therefore, be of future benefit instead of being laid on the shelf when finished.

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