Moving Loads on Railway Underbridges, Including, Vol. 1: Diagrams of Bending Moments and Shearing Forces and Tables of Equivalent Uniform Live Loads (Classic Reprint)

Excerpt from Moving Loads on Railway Underbridges, Including, Vol. 1: Diagrams of Bending Moments and Shearing Forces and Tables of Equivalent Uniform Live Loads

The attention of the author having been directed, some five years ago, to the tedious and unscientific methods commonly used in practice in the preparation of tables of "equivalent uniform live loads" for railway under-line bridges, it occurred to him that much of the labour which the application of these methods involved might be saved, and the work simplified, by a direct application of the funicular polygon. Working on these lines he has succeeded in devising a graphical method, whereby, on a single diagram, the maximum shears and the maximum bending moments and the points along the spans at which they occur can be determined with facility for a wide range of spans and for any given type-train. A full description of this method originally appeared in Engineering on September 7th, 1906, and was followed in quick succession by three other articles dealing more or less closely with the same subject. These four articles are now brought together in Chapters IV-VII of the following work, and three other chapters on Diagrams of Bending Moments and Shearing Forces in Beams added, in the hope that it may prove useful to engineering students in general and to designers of railway underbridges in particular.

The author's thanks are due to Engineering for permission to reproduce the articles above referred to and for kindly supplying electros of the diagrams.

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.