Civil engineering

Source: Wikipedia, the free encyclopedia.

Tennessee Valley Authority civil engineers monitoring hydraulics of a Tellico Dam scale model.

Civil engineering is a

sewage systems, pipelines, structural components of buildings, and railways.[1][2]

Civil engineering is traditionally broken into a number of sub-disciplines. It is considered the second-oldest engineering discipline after military engineering,[3] and it is defined to distinguish non-military engineering from military engineering.[4] Civil engineering can take place in the public sector from municipal public works departments through to federal government agencies, and in the private sector from locally based firms to global Fortune 500 companies.[5]

History

Civil engineering as a discipline

Civil engineering is the application of physical and scientific principles for solving the problems of society, and its history is intricately linked to advances in the understanding of physics and mathematics throughout history. Because civil engineering is a broad profession, including several specialized sub-disciplines, its history is linked to knowledge of structures, materials science, geography, geology, soils, hydrology, environmental science, mechanics, project management, and other fields.[6]

Throughout ancient and medieval history most

carpenters, rising to the role of master builder. Knowledge was retained in guilds and seldom supplanted by advances. Structures, roads, and infrastructure that existed were repetitive, and increases in scale were incremental.[7]

One of the earliest examples of a scientific approach to physical and mathematical problems applicable to civil engineering is the work of Archimedes in the 3rd century BC, including Archimedes' principle, which underpins our understanding of buoyancy, and practical solutions such as Archimedes' screw. Brahmagupta, an Indian mathematician, used arithmetic in the 7th century AD, based on Hindu-Arabic numerals, for excavation (volume) computations.[8]

Civil engineering profession

See also: History of structural engineering

Engineering has been an aspect of life since the beginnings of human existence. The earliest practice of civil engineering may have commenced between 4000 and 2000 BC in

Indus Valley civilization, and Mesopotamia (ancient Iraq) when humans started to abandon a nomadic existence, creating a need for the construction of shelter. During this time, transportation became increasingly important leading to the development of the wheel and sailing.

Leonhard Euler developed the theory explaining the buckling
of columns.

Until modern times there was no clear distinction between civil engineering and architecture, and the term engineer and architect were mainly geographical variations referring to the same occupation, and often used interchangeably.

insulae
, harbors, bridges, dams and roads.

A Roman aqueduct [built c. 19 BC], Pont du Gard, France
funnels all the rainwater from the complex some 40 metres (130 ft) away to a rejollada, a former cenote
.

In the 18th century, the term civil engineering was coined to incorporate all things civilian as opposed to military engineering.

École Nationale des Ponts et Chaussées was established in France; and more examples followed in other European countries, like Spain.[12] The first self-proclaimed civil engineer was John Smeaton, who constructed the Eddystone Lighthouse.[3][11]
In 1771 Smeaton and some of his colleagues formed the Smeatonian Society of Civil Engineers, a group of leaders of the profession who met informally over dinner. Though there was evidence of some technical meetings, it was little more than a social society.

John Smeaton, the "father of civil engineering"

In 1818 the Institution of Civil Engineers was founded in London,[13] and in 1820 the eminent engineer Thomas Telford became its first president. The institution received a Royal charter in 1828, formally recognising civil engineering as a profession. Its charter defined civil engineering as:

the art of directing the great sources of power in nature for the use and convenience of man, as the means of production and of traffic in states, both for external and internal trade, as applied in the construction of roads, bridges, aqueducts, canals, river navigation and docks for internal intercourse and exchange, and in the construction of ports, harbours, moles, breakwaters and lighthouses, and in the art of navigation by artificial power for the purposes of commerce, and in the construction and application of machinery, and in the drainage of cities and towns.[14]

Civil engineering education

The first private college to teach civil engineering in the United States was

Nora Stanton Blatch in 1905.[18]

In the UK during the early 19th century, the division between civil engineering and military engineering (served by the Royal Military Academy, Woolwich), coupled with the demands of the Industrial Revolution, spawned new engineering education initiatives: the Class of Civil Engineering and Mining was founded at King's College London in 1838, mainly as a response to the growth of the railway system and the need for more qualified engineers, the private College for Civil Engineers in Putney was established in 1839, and the UK's first Chair of Engineering was established at the University of Glasgow in 1840.

Education

Main article:
bachelor of engineering. The curriculum generally includes classes in physics, mathematics, project management, design and specific topics in civil engineering. After taking basic courses in most sub-disciplines of civil engineering, they move on to specialize in one or more sub-disciplines at advanced levels. While an undergraduate degree (BEng/BSc) normally provides successful students with industry-accredited qualifications, some academic institutions offer post-graduate degrees (MEng/MSc), which allow students to further specialize in their particular area of interest.[19]

Surveying students with professor at the Helsinki University of Technology
in the late 19th century.

Practicing engineers

In most countries, a bachelor's degree in engineering represents the first step towards

chartered engineer (in most Commonwealth countries), a chartered professional engineer (in Australia and New Zealand), or a European engineer (in most countries of the European Union
). There are international agreements between relevant professional bodies to allow engineers to practice across national borders.

The benefits of certification vary depending upon location. For example, in the United States and Canada, "only a licensed

code of ethics which all members must abide by.[22]

Engineers must obey

building codes and environmental law
.

Sub-disciplines

Akashi Kaikyō Bridge
in Japan, currently the world's second-longest suspension span.

There are a number of sub-disciplines within the broad field of civil engineering. General civil engineers work closely with surveyors and specialized civil engineers to design grading, drainage,

pavement
, water supply, sewer service, dams, electric and communications supply. General civil engineering is also referred to as site engineering, a branch of civil engineering that primarily focuses on converting a tract of land from one usage to another. Site engineers spend time visiting project sites, meeting with stakeholders, and preparing construction plans. Civil engineers apply the principles of geotechnical engineering, structural engineering, environmental engineering, transportation engineering and construction engineering to residential, commercial, industrial and public works projects of all sizes and levels of construction.

Coastal engineering

Main articles: Coastal engineering and Coastal management
storm surge barrier
in the Netherlands.

Coastal engineering is concerned with managing coastal areas. In some jurisdictions, the terms sea defense and coastal protection mean defense against flooding and erosion, respectively. Coastal defense is the more traditional term, but coastal management has become popular as well.

Construction engineering

Main article: Construction engineering

Construction engineering involves planning and execution, transportation of materials, site development based on hydraulic, environmental, structural and geotechnical engineering. As construction firms tend to have higher business risk than other types of civil engineering firms do, construction engineers often engage in more business-like transactions, for example, drafting and reviewing contracts, evaluating logistical operations, and monitoring prices of supplies.

Earthquake engineering

Main article: Earthquake engineering

Earthquake engineering involves designing structures to withstand hazardous earthquake exposures. Earthquake engineering is a sub-discipline of structural engineering. The main objectives of earthquake engineering are

perform at earthquake in compliance with building codes
.

Environmental engineering

Main article: Environmental engineering
Creek contaminated with water pollution

Environmental engineering is the contemporary term for sanitary engineering, though sanitary engineering traditionally had not included much of the hazardous waste management and environmental remediation work covered by environmental engineering. Public health engineering and environmental health engineering are other terms being used.

Environmental engineering deals with treatment of chemical, biological, or thermal wastes, purification of water and air, and

waste water treatment, air pollution, solid waste treatment, recycling, and hazardous waste management. Environmental engineers administer pollution reduction, green engineering, and industrial ecology
. Environmental engineers also compile information on environmental consequences of proposed actions.

Forensic engineering

Main article: Forensic engineering

Forensic engineering is the investigation of materials, products, structures or components that fail or do not operate or function as intended, causing personal injury or damage to property. The consequences of failure are dealt with by the law of product liability. The field also deals with retracing processes and procedures leading to accidents in operation of vehicles or machinery. The subject is applied most commonly in civil law cases, although it may be of use in criminal law cases. Generally the purpose of a Forensic engineering investigation is to locate cause or causes of failure with a view to improve performance or life of a component, or to assist a court in determining the facts of an accident. It can also involve investigation of intellectual property claims, especially patents.

Geotechnical engineering

Main article: Geotechnical engineering
A phase diagram of soil indicating the weights and volumes of air, soil, water, and voids.

Geotechnical engineering studies rock and soil supporting civil engineering systems. Knowledge from the field of soil science, materials science, mechanics, and hydraulics is applied to safely and economically design foundations, retaining walls, and other structures. Environmental efforts to protect groundwater and safely maintain landfills have spawned a new area of research called geo-environmental engineering.[25][26]

Identification of soil properties presents challenges to geotechnical engineers.

Geological Engineering professionals and soil scientists.[27]

Materials science and engineering

Main article: Materials science

Materials science is closely related to civil engineering. It studies fundamental characteristics of materials, and deals with ceramics such as concrete and mix asphalt concrete, strong metals such as aluminum and steel, and

polymethylmethacrylate
(PMMA) and carbon fibers.

Materials engineering involves protection and prevention (paints and finishes). Alloying combines two types of metals to produce another metal with desired properties. It incorporates elements of

nanoscience and nanotechnology, materials engineering has been at the forefront of academic research. It is also an important part of forensic engineering and failure analysis
.

Site development and planning

See also: Land development and urban planning
Plan draft of proposed mixed-use site

Site development, also known as site planning, is focused on the planning and development potential of a site as well as addressing possible impacts from

permitting issues and environmental challenges.[28]

Structural engineering

Main article: Structural engineering
Burj Khalifa animation of construction process
Shallow foundation construction example

Structural engineering is concerned with the

structural design and structural analysis of buildings, bridges, towers, flyovers (overpasses), tunnels, off shore structures like oil and gas fields in the sea, aerostructure and other structures. This involves identifying the loads which act upon a structure and the forces and stresses which arise within that structure due to those loads, and then designing the structure to successfully support and resist those loads. The loads can be self weight of the structures, other dead load, live loads, moving (wheel) load, wind load, earthquake load, load from temperature change etc. The structural engineer must design structures to be safe for their users and to successfully fulfill the function they are designed for (to be serviceable). Due to the nature of some loading conditions, sub-disciplines within structural engineering have emerged, including wind engineering and earthquake engineering.[29]

Design considerations will include strength, stiffness, and stability of the structure when subjected to loads which may be static, such as furniture or self-weight, or dynamic, such as wind, seismic, crowd or vehicle loads, or transitory, such as temporary construction loads or impact. Other considerations include cost, constructibility, safety, aesthetics and sustainability.

Surveying

Main articles: Surveying and Construction surveying

Surveying is the process by which a surveyor measures certain dimensions that occur on or near the surface of the Earth. Surveying equipment such as levels and theodolites are used for accurate measurement of angular deviation, horizontal, vertical and slope distances. With computerisation, electronic distance measurement (EDM), total stations, GPS surveying and laser scanning have to a large extent supplanted traditional instruments. Data collected by survey measurement is converted into a graphical representation of the Earth's surface in the form of a map. This information is then used by civil engineers, contractors and realtors to design from, build on, and trade, respectively. Elements of a structure must be sized and positioned in relation to each other and to site boundaries and adjacent structures.

Although surveying is a distinct profession with separate qualifications and licensing arrangements, civil engineers are trained in the basics of surveying and mapping, as well as geographic information systems. Surveyors also lay out the routes of railways, tramway tracks, highways, roads, pipelines and streets as well as position other infrastructure, such as harbors, before construction.

Land surveying

In the United States, Canada, the United Kingdom and most Commonwealth countries land surveying is considered to be a separate and distinct profession.

cadastral survey marker from 1992 in San Xavier, Arizona
.
Construction surveying

Construction surveying is generally performed by specialized technicians. Unlike land surveyors, the resulting plan does not have legal status. Construction surveyors perform the following tasks:

  • Surveying existing conditions of the future work site, including topography, existing buildings and infrastructure, and underground infrastructure when possible;
  • "lay-out" or "setting-out": placing reference points and markers that will guide the construction of new structures such as roads or buildings;
  • Verifying the location of structures during construction;
  • As-Built surveying: a survey conducted at the end of the construction project to verify that the work authorized was completed to the specifications set on plans.

Transportation engineering

Main article:
Intelligent Transportation System
(ITS), and infrastructure management.

Municipal or urban engineering

The engineering of this roundabout in Bristol, England, attempts to make traffic flow free-moving
Main article:
Urban engineering
Lake Chapultepec

Municipal engineering is concerned with municipal infrastructure. This involves specifying, designing, constructing, and maintaining streets,

water supply networks, sewers, street lighting, municipal solid waste management and disposal, storage depots for various bulk materials used for maintenance and public works (salt, sand, etc.), public parks and cycling infrastructure. In the case of underground utility networks, it may also include the civil portion (conduits and access chambers) of the local distribution networks of electrical and telecommunications services. It can also include the optimization of waste collection and bus service
networks. Some of these disciplines overlap with other civil engineering specialties, however municipal engineering focuses on the coordination of these infrastructure networks and services, as they are often built simultaneously, and managed by the same municipal authority. Municipal engineers may also design the site civil works for large buildings, industrial plants or campuses (i.e. access roads, parking lots, potable water supply, treatment or pretreatment of waste water, site drainage, etc.)

Water resources engineering

See also: Hydraulic engineering and Hydrology
Hoover Dam

Water resources engineering is concerned with the collection and management of water (as a natural resource). As a discipline it therefore combines elements of hydrology, environmental science, meteorology, conservation, and resource management. This area of civil engineering relates to the prediction and management of both the quality and the quantity of water in both underground (aquifers) and above ground (lakes, rivers, and streams) resources. Water resource engineers analyze and model very small to very large areas of the earth to predict the amount and content of water as it flows into, through, or out of a facility. Although the actual design of the facility may be left to other engineers.

Hydraulic engineering is concerned with the flow and conveyance of fluids, principally water. This area of civil engineering is intimately related to the design of

fluid statics, fluid dynamics, and hydraulics, among others.

The Falkirk Wheel
in Scotland

Civil engineering systems

Civil engineering systems is a discipline that promotes the use of systems thinking to manage complexity and change in civil engineering within its wider public context. It posits that the proper development of civil engineering infrastructure requires a holistic, coherent understanding of the relationships between all of the important factors that contribute to successful projects while at the same time emphasizing the importance of attention to technical detail. Its purpose is to help integrate the entire civil engineering project life cycle from conception, through planning, designing, making, operating to decommissioning.[30][31]

See also

Associations

References

  1. ^ "History and Heritage of Civil Engineering". ASCE. Archived from the original on 16 February 2007. Retrieved 8 August 2007.
  2. ^ "What is Civil Engineering". Institution of Civil Engineers. 14 January 2022. Retrieved 15 May 2017.
  3. ^
    The Canadian Society for Civil Engineering. Archived from the original
    on 12 August 2007. Retrieved 8 August 2007.
  4. ^ a b "Civil engineering". Encyclopædia Britannica. Retrieved 9 August 2007.
  5. ^ "Working in the Public Sector Versus Private Sector for Civil Engineering Professionals". The Civil Engineering Podcast. Engineering Management Institute. 5 June 2019.
  6. ^ Baveystock, Nick (8 August 2013). "So what does a civil engineer do, exactly?". The Guardian. Retrieved 11 September 2020.
  7. ^ Saouma, Victor E. "Lecture Notes in Structural Engineering" (PDF). University of Colorado. Archived from the original (PDF) on 19 April 2011. Retrieved 2 November 2007.
  8. ^ Colebrook, Henry Thomas (1817). Algebra: with Arithmetic and mensuration. London.
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  12. ^ Dirección General de Obras Públicas Spain (1856). Memoria sobre el estado de las obras públicas en España en 1856 presentada al excmo. sr. Ministro de Fomento por la Dirección General de Obras Públicas. Madrid: National Press.
  13. ^ "Our history". Institution of Civil Engineers. 2 December 2015. Retrieved 12 April 2018.
  14. ^ "Institution of Civil Engineers' website". Retrieved 26 December 2007.
  15. ^ "Norwich University Legacy Website". Archived from the original on 6 July 2014. Retrieved 15 December 2008.
  16. ^ Griggs, Francis E Jr. "Amos Eaton was Right!". Journal of Professional Issues in Engineering Education and Practice, Vol. 123, No. 1, January 1997, pp. 30–34.
  17. ^ "RPI Timeline". Archived from the original on 2 July 2014. Retrieved 14 September 2007.
  18. ^ "Nora Stanton Blatch Barney". Encyclopædia Britannica Online. Retrieved 8 October 2010.
  19. ^ ,"Cite Postgrad". Archived from the original on 6 November 2008.
  20. ^ "Why Should You Get Licensed?". National Society of Professional Engineers. Archived from the original on 4 June 2005. Retrieved 11 August 2007.
  21. ^ "Engineers Act". Quebec Statutes and Regulations (CanLII). Archived from the original on 5 October 2006. Retrieved 11 August 2007.
  22. ^ "Ethics Codes and Guidelines". Online Ethics Center. Archived from the original on 2 February 2016. Retrieved 11 August 2007.
  23. ^ "Singapore's Circle Line criminal trial started". New Civil Engineer. Retrieved 16 November 2013.
  24. ISBN 0-8493-0068-1
  25. ^ a b Mitchell, James Kenneth (1993). Fundamentals of Soil Behavior (2nd ed.). John Wiley and Sons. pp. 1–2.
  26. ^ Shroff, Arvind V.; Shah, Dhananjay L. (2003). Soil Mechanics and Geotechnical Engineering. Taylor & Francis. pp. 1–2.
  27. ^ "Geotechnical/Geological Engineering" (PDF). Professional Careers in the Mineral Industry. The Australasian Institute of Mining and Metallurgy. Archived (PDF) from the original on 20 July 2008. Retrieved 30 May 2018.
  28. ^ "Site Development and Planning". Nobis Group. Retrieved 7 September 2020.
  29. ^ Narayanan, R; Beeby, A (2003). Introduction to Design for Civil Engineers. London: Spon.
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  31. ISBN 978-0-7277-6082-1
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Further reading

External links

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