Excerpt from Supplement to the Theory, Practice, and Architecture of Bridges: Illustrating the Most Recent Applications of Cast and Wrought Iron, Stone, and Timber, and Suspension
When wrought iron is combined with cast iron in the manner of trussing, several difficulties arise from the different expansions of the two metals, and the difference of their masses, which causes the wrought-iron rods to be more rapidly affected by a sudden change of temperature than the cast-iron parts. The constant strain upon the wrought iron tends to produce a permanent elongation, and hence tension rods may require to be occasionally screwed up. We have sought for opinions and information upon all these questions, and these show that the greatest skill and caution is necessary to ensure the safe employment of such combinations. It is not admitted that the vibra tion of railway trains would loosen or injure the bolts or rivets of com pound girders. Nevertheless wood, felt, or other similar substances, have occasionally been introduced between surfaces to diminish the communication of vibration.
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Da: Forgotten Books, London, Regno Unito
Paperback. Condizione: New. Print on Demand. This book, an inquiry into the application of iron to building structures, was published by the British government in 1850. At the time of its writing, iron was being increasingly used in railway construction but the authors noted a lack of standardization and voiced concerns about the safety of certain structures. Through original research, the author and contributors aimed to provide civil engineers with data and observations to improve the safety of iron bridges and other railway structures. Their experiments revealed that the impact of trains on bridges could cause significant structural damage, including fractures, and that the speed of trains could exacerbate these effects. The authors concluded that it was advisable for engineers to design bridges that could withstand forces six times greater than the heaviest anticipated load, and to consider the effects of train speed and the weight of the bridge itself when calculating the strength needed. These insights laid the foundation for modern bridge engineering practices and continue to inform structural design today. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Codice articolo 9780282690113_0
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Da: PBShop.store US, Wood Dale, IL, U.S.A.
PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000. Codice articolo LW-9780282690113
Quantità: 15 disponibili
Da: PBShop.store UK, Fairford, GLOS, Regno Unito
PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000. Codice articolo LW-9780282690113
Quantità: 15 disponibili
Da: Buchpark, Trebbin, Germania
Condizione: Gut. Zustand: Gut | Seiten: 382 | Sprache: Englisch | Produktart: Bücher | Keine Beschreibung verfügbar. Codice articolo 29797686/3
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