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Elementary Theory and Calculation of Iron Bridges and Roofs by August Ritter. This book is a reproduction of the original book published in 1879 and may have some imperfections such as marks or hand-written notes.

Excerpt from Elementary Theory and Calculation of Iron Bridges and Roofs The first edition of Professor Ritter's work, of which tho following is a literal translation, was published in 1862 to advocate the use of the "Method of Moments" in calculating the stresses in bridges and roofs. This " Method of Momenta" is in reality but an application of Rankine's "Method of Sections." The adaptation of the method to various cases is explained and illustrated by means of numerical examples comprising several of the forms of bridges and roofs in general use as well as others not often met with. Some interesting problems are discussed in the Eleventh Chapter, and are possibly not generally known in this country. It is required to determine the form a structure should have to fulfil given conditions as regards the stresses. These problems give a considerable insight into the manner in which the stresses arc distributed amongst the various bars of a structure, and show also that comparatively small changes in the form may produce great changes in the stresses. The effect of changes of temperature on the deflection and on the stresses in a "composite structure" is treated at some length in the Fourteenth and Sixteenth Chapters. The theory of loaded beams is only touched upon - in fact, only those cases are considered which are required in the various examples. The Sixteenth Chapter contains a very instructive example of a composite structure consisting of a pair of braced girders combined with suspension chains. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.