The Engineering Contributions of Wendel Bollman

Cover image for

Download


Author: Robert M. Vogel
Published: 1966
Language: English
Wordcount: 9,901 / 39 pg
Flesch-Kincaid Reading Ease: 51.4
LoC Category: TA
Downloads: 4,287
Added to site: 2010.10.20
mnybks.net#: 29329
Origin: gutenberg.org

The development of structural engineering has always been as dependent upon the availability of materials as upon the expansion of theoretical concepts. Perhaps the greatest single step in the history of civil engineering was the introduction of iron as a primary structural material in the 19th century; it quickly released the bridge and the building from the confines of a technology based upon the limited strength of masonry and wood.Wendel Bollman, self-taught Baltimore civil engineer, was the first to evolve a system of bridging in iron to be consistently used on an American railroad, becoming one of the pioneers who ushered in the modern period of structural engineering.

Show Excerpt

for the major bridges, there were several situations in which masonry construction was unsuitable for practical reasons. If stone arches were used in locations where the grade of the line was a relatively short distance above the surface of the stream to be crossed, a number of short arches would have been necessary to avoid a very flat single arch. In arch construction, the smaller the segment of a circle represented by the arch (that is, the flatter the arch), the greater the stress in the arch ring and the resulting horizontal thrust on the abutments.

[Illustration: Figure 9.--BOLLMAN SKEW BRIDGE at Elysville (now Daniels), Maryland, built in 1853-1854. (Photo courtesy of Maryland Historical Society.)]

The piers for the numerous arches necessary to permit an optimum amount of rise relative to the span would have presented a dangerous restriction to stream flow in time of flood. By the use of timber trusses such crossings could be made in one or two spans with, at the most, one pier

Reviews

Average Rating of 3 from 1 reviews: ***

good


SUBSCRIBE TO MANYBOOKS 

FREE EBOOKS 

Join 120,000+ fellow readers! Get Free eBooks and book bargains from ManyBooks in your inbox. 

We respect your email privacy

(Promote your book here)

Featured Books

Cover image for The Engineering Contributions of Wendel Bollman by Robert M. Vogel - Free eBook

Valkyrie's Vengeance

Loki's Wolves Book 0
Melissa Snark

Fans of paranormal and urban fantasy will enjoy... Read more

Cover image for The Engineering Contributions of Wendel Bollman by Robert M. Vogel - Free eBook

Helga: Out of Hedgelands

Wood Cow Chronicles Book 1
Rick Johnson

VOLUME ONE in the WOOD COW CHRONICLES series. <... Read more

Cover image for The Engineering Contributions of Wendel Bollman by Robert M. Vogel - Free eBook

The Titan Drowns: Time Travel Romance

New Atlantis Time Travel Romance Book 6
Nhys Glover

2013 SFR GALAXY AWARD WINNER

"Heroism and... Read more

Cover image for The Engineering Contributions of Wendel Bollman by Robert M. Vogel - Free eBook

Chausiku

Nightmare of the Clans Book One
Pamela E. Cash

There are six secret clans across the world–Afr... Read more

Cover image for The Engineering Contributions of Wendel Bollman by Robert M. Vogel - Free eBook

Mademoiselle At Arms

A Georgian Romance
Elizabeth Bailey

Set in the late Georgian era, Elizabeth Bailey’... Read more

Cover image for The Engineering Contributions of Wendel Bollman by Robert M. Vogel - Free eBook

The Tales of Tim Hurtletuta - New Beginnings

Tales of Tim Hurtletuta Series, Book 1
Matthew James Wilkins

"Tim Hurtletuta has forgotten something. He can... Read more

Cover image for The Engineering Contributions of Wendel Bollman by Robert M. Vogel - Free eBook

After the Cure

Deirdre Gould

Eight years ago the December Plague swept throu... Read more

Cover image for The Engineering Contributions of Wendel Bollman by Robert M. Vogel - Free eBook

The Unveiling

Book One (Age of Faith 1)
Tamara Leigh

12th century England: Two men vie for the thron... Read more

Cover image for The Engineering Contributions of Wendel Bollman by Robert M. Vogel - Free eBook

Healing Her Heart

Crystal Lake Series Book 1
Laura Scott

Dr. Gabe Allen has a rule about dating colleagues... Read more

Cover image for The Engineering Contributions of Wendel Bollman by Robert M. Vogel - Free eBook

Never A Choice

The Choices Trilogy #1
Dee Palmer

Bethany Thorne has secrets and she’s told a few... Read more

(advanced)
login | register

User ID

Password

reset password

Help ManyBooks by sharing this page!

See it as donating a moment of your social media time, every little thing helps us improve and stay online.

Popular in This Genre

The list of books below is based on the weekly downloads by our users regardless of eReader device or file format.

The Art of Public Speaking
by Dale Carnegie
The Age of Reason
by Thomas Paine
An Introduction to Psychology
by Wilhelm Max Wundt
On the Origin of Species
by Charles Darwin
A History of English Literature
by George Saintsbury
Ethics
by Aristotle
Autobiography and Selected Essays
by Thomas Henry Huxley
10,000 Dreams Interpreted
by Gustavus Hindman Miller

See more popular titles from this genre.