The Principles and Application in Engineering Series is a series of convenient, economical references sharply focused on particular engineering topics and subspecialties.
Each volume in this series comprises chapters carefully selected from CRC’s bestselling handbooks, logically organized for optimum convenience, and thoughtfully priced to fit every budget.
From the award-winning Bridge Engineering Handbook, Bridge Engineering:
Construction
Maintenance takes an in-depth look at the construction engineering
Maintenance aspects of steel and concrete bridges.
Topics include effective project management, construction procedures and practices, construction and maintenance inspections and ratings, and bridge strengthening and rehabilitation.
The field of Bridge Deck behaviour and analysis Bridge Deck Analysis is an essential reference for civil and structural engineers.
It provides bridge designers with the knowledge to understand the behaviour of bridge decks, to be familiar with, and to understand the various numerical modelling techniques, to know which technique is most suited.
The book covers the grillage analogy, dedicates a chapter to the modelling and analysis of integral bridge forms and also provides guidance of the application of the finite element method.
How an unemployed accountant changed civil engineering
Ever wonder about the origin of Manning’s equation? Well, even if you haven’t it’s still interesting. This well-known equation achieved its notoriety in a way parallel to many other things in our modern consumer society. Through what some may call typical but accidental word-of-mouth marketing techniques. But not by its inventor.
The equation was named after an Irishman (actually born in France in 1816) Robert Manning. He was 73 when he introduced the equation to the Institution of Civil Engineers in Ireland. He died eight years later.
Here’s what’s interesting… he never stepped a foot in a fluid mechanics class or had an engineering degree. He worked for his uncle as an accountant until the Irish famine caused him to lose his job in 1845. But a year later he was hired on at the expanding Irish Public Works Department in the drainage division. While one thing led to another, he was appointed Chief Engineer 1874 and held this position until retirement in 1891. He taught himself hydraulics.
He admired folks like Chezy, Darcy, Kutter and a few other H&H pioneers. Apparently his mass detestation for complex mathematical formulae was the driving force behind his passion for simplicity. He tinkered with as many as seven other hydraulic formulae for open channel flow created by his colleagues in an effort to boil it all down to this equation:
(C later turns into the reciprocal of Kutter’s n)
But this equation had a serious problem… a cube root. Computing a number to the 2/3rds power was not easy in the late 1800’s. So Manning trashed it and created one that didn’t have a cube root extraction:
(m is barometric pressure)
It is this equation that he named after himself in 1895 but with little applause. Barometric pressure, really?
Meanwhile, others in his field liked his first rendition of ten years earlier. Manning had noted that the reciprocal of C somehow closely corresponded with an n-value determined by Ganguillet and Kutter. As time passed authors began to reference the original formula as Manning’s equation but with Kutter’s n-value. The cubed root was still a major issue among practicing civil engineers so it wasn’t very popular.
But in 1918, Manning’s equation went viral thanks to Horace W. King. Does the Handbook of Hydraulics ring a bell? King not only suggested exchanging Manning’s K for Kutter’s n, he tabulated the two-thirds power of numbers over the range of 0.01 to 10 and added it to the 1st edition of Handbook of Hydraulics. Perhaps it was this table that overcame the greatest difficulty in using Manning’s equation and made it as famous as it is today. An equation that Manning himself rejected years earlier and that is baked into most modern hydrology software features.
All told, it took circumstances, an Irish famine, an unemployed accountant and a University of Michigan professor to create this favorite tool that today’s practicing civil engineer refuses to give up. Manning’s equation is still the most widely used. Over the last century many new modern formulae have been developed but nothing has changed in the real world. Well, perhaps for a just a few years. Here’s what Manning’s equation looked like in the late 1950’s, early 60s.
Steel frames are used in many commercial high-rise buildings, as well as industrial structures, such as ore mines and oilrigs. Enabling construction of ever lighter and safer structures, steel frames have become an important topic for engineers.
This book, split into two parts covering advanced analysis and advanced design of steel frames, guides the reader from a broad array of frame elements through to advanced design methods such as deterministic, reliability, and system reliability design approaches.
This book connects reliability evaluation of structural systems to advanced analysis of steel frames, and ensures that the steel frame design described is founded on system reliability.
Important features of the this book include:
fundamental equations governing the elastic and elasto-plastic equilibrium of beam, sheer-beam, column, joint-panel, and brace elements for steel frames;
analysis of elastic buckling, elasto-plastic capacity and earthquake-excited behaviour of steel frames;
background knowledge of more precise analysis and safer design of steel frames against gravity and wind, as well as key discussions on seismic analysis.
theoretical treatments, followed by numerous examples and applications;
a review of the evolution of structural design approaches, and reliability-based advanced analysis, followed by the methods and procedures for how to establish practical design formula.
Advanced Design and Analysis of Steel Frames provides students, researchers, and engineers with an integrated examination of this core civil and structural engineering topic.
The logical treatment of both advanced analysis followed by advanced design makes this an invaluable reference tool, comprising of reviews, methods, procedures, examples, and applications of steel frames in one complete volume.
A ceremony was held to mark a significant milestone in the construction of the Shanghai-Nantong Bridge in the city of Nantong, east China’s Jiangsu Province, on October 22, 2017, reports chinanews.com.
Crews have finished building the first arch which will support the massive bridge over the Yangtze River.
The double-decker bridge will eventually run just over 11-kilometers above the Yangtze River.
It will support six lanes of vehicle traffic running in both directions on the top deck.
The lower deck will allow train traffic to run in both directions, providing a key link between Shanghai and the city of Nantong.
Construction on the Shanghai-Nantong Bridge began in March, 2014.
Officials anticipate the bridge will eventually be completed by mid-2022.
The Russky Island Bridge in Russia connects the city of Vladivostok to Russky Island across the Eastern Bosphorus Strait and was built in preparation for the 2012 Asia-Pacific Economic Cooperation Summit held on Russky Island.
The construction project was a collaboration between Russian industrial group USK Most and French company Freyssinet and it was completed in an impressive time of 43 months.
The bridge was officially opened by the Russian Prime Ministr Dmitry Mededev in July 2012.
The Russky Island Bridge is the longest cable-stayed suspension bridge in the world with a total length of 3,100m (10,200 ft). A concrete and steel construction it is 25.5m (97 ft) wide and carries four lanes of traffic on a deck 70m (230 ft) above the water.
There are 11 spans in total with the main central one being 1,104m (3,622 ft) in length. The two A-shaped anchor pylons are 325m (1,066 ft) tall, the second tallest in the world after those on the Millau Viaduct.
The bridge was designed to cope with the area’s extreme climatic conditions of temperature variances of between the -30s and +30s degrees centigrade, storm winds and thick icy layers in winter.
The need for such an expensive and large scale bridge project to the sparsely populated Russky Island was questioned at the time and many feel that it was undertaken in advance of the Summit as a demonstration to its APEC partners of Russia’s industrial might.
It is estimated that the bridge cost in excess of $1 billion.
Based on the Institute of Concrete Technology’s advanced course, this new four volume series is a comprehensive educational and reference resource for the concrete materials technologist.
An expert international team of authors from research, academia and industry has been brought together to produce this unique reference source. Each volume deals with different aspects of the properties, composition, uses and testing of concrete.
With worked examples, case studies and illustrations throughout, this series will be a key reference for the concrete specialist for years to come.
Key Features
Expert international authorship ensures the series is authoritative
Case studies and worked examples help the reader apply their knowledge to practice
Comprehensive coverage of the subject gives the reader all the necessary reference material
Readership
Practitioners in the concrete and cement industry. Academics and postgraduate students of civil engineering and related subjects
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Tianmen Mountain National Forest Park is located in Zhangjiajie, about 8 kilometers from the urban district.
It is approved to be National Forest Park in 1992, boasting abundant up-to- 90% vegetation.
On the mountain there are a wealth of rare species of plant. Old trees grow very high to the sky. A 7.2-km long cable car was constructed in the park, which is said to be the longest of the same type in the world.
With profound cultural background, Tianmen Mountain is always considered as the holy mountain by locals.
A 500-year-old Buddhist temple is nestled in the mountain attracting thousands of prayers every year.
Many legends and stories about the mountain were inherited from generation to generation, which are widely spread in the west of Hunan Province.
