Author: Thomas Cargill

Publisher: Forgotten Books

Published: 2017-10-12

Total Pages: 268

ISBN-13: 9780266243328

Excerpt from The Strains Upon Bridge Girders and Roof Trusses: Including the Warren, Lattice, Trellis, Bowstring, and Other Forms of Girders, the Curved Roof, and Simple and Compound Trusses It cannot be denied, that a method Of arriving at any desired result in the field of science, which appeals to the senses as well as to the mind, must be more con genial to the comparatively untrained intellect, than that which calls into play the mental faculties only. In the former case we perceive, and therefore understand; in the latter, whether we understand or not, we perceive nothing. Many persons, in fact the majority, have either a natural distaste for intricate mathematical in vestigations, or, from imperfect education or other cause, are unable to follow them with any degree Of satis faction to themselves. The method Of graphic diagrams offers the facilities denied by the other and more com plicated principle, and thus enables the same goal to be reached by a different road. The result is the same, although the means, employed to arrive at that result, are different. When a girder or roof truss belongs to a certain type of design, it becomes impracticable to determine the strains by mathematical calculation. As diagrams must, therefore, be resorted to in those instances, in which the designs are of a complicated character, it is absolutely necessary, that the manner of applying them to the simple cases, Should be thoroughly understood. This necessitates a study Of the whole subject, which, the Author trusts, the present treatise will render free from difficulty. 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.