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Cellular Beam
Cellular beam is a further development of the traditional castellated beam. The advantage of the steel beam castellation process is that it increases strength without adding weight, making both versions an inexpensive solution to achieve maximum structural load capacity in building construction. The difference between cellular beam and castellated beam is the visual characteristic. A cellular beam has ''round openings'' (circular pattern) while the castellated beam has ''hexagonal openings'' (hexagonal pattern), both of which are achieved by a cutting and welding process. Cellular beams are usually made of structural steel, but can also be made of other materials. The cellular beam is a structural element that mainly withstands structural load laterally applied to the axis of the beam, and influences the overall performance of steel framed buildings. The type of deflection is mainly done by bending. Introduction In 1987, Westok Structural Services Ltd of Wakefield invented and pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Castellated Beam
A castellated beam is a Beam (structure), beam style where an I-beam is subjected to a Longitude, longitudinal cut along its web following a specific pattern. The purpose is to divide and reassemble the beam with a deeper web by taking advantage of the cutting pattern. References See also * Cellular beam * Open web steel joist Structural engineering {{civil-engineering-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wakefield
Wakefield is a cathedral city in West Yorkshire, England located on the River Calder. The city had a population of 99,251 in the 2011 census.https://www.nomisweb.co.uk/census/2011/ks101ew Census 2011 table KS101EW Usual resident population, West Yorkshire – Wakefield BUASD, code E35000474 The city is the administrative centre of the wider City of Wakefield metropolitan district, which had a population of , the most populous district in England. It is part of the West Yorkshire Built-up Area and the Yorkshire and The Humber region. In 1888, it was one of the last group of towns to gain city status due to having a cathedral. The city has a town hall and county hall, as the former administrative centre of the city's county borough and metropolitan borough as well as county town to both the West Riding of Yorkshire and West Yorkshire, respectively. The Battle of Wakefield took place in the Wars of the Roses, and the city was a Royalist stronghold in the Civil War. Wake ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weld Access Hole
The weld access hole or rat hole is a structural engineering technique in which a part of the web of an I-beam or T-beam is cut out at the end or ends of the beam. The hole in the web allows a welder to weld the flange to another part of the structure with a continuous weld the full width on both top and bottom sides of the flange. Without the weld access hole, the middle of the flange would be blocked by the web and inaccessible for welding. The hole also minimizes the induction of thermal stresses with a combination of partially releasing the welded section, avoiding welding the T section where the flange joins the web and improving cooling conditions. The configuration adopted for web access holes affects how the beam joint will bend when under stress. Complete penetration Welds may be classified as either Complete Joint Penetration (CJP) or Partial Joint Penetration (PJP). CJP welds extend completely through the thickness of components joined. A CJP weld transmits th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steel Design
Steel Design, or more specifically, Structural Steel Design, is an area of structural engineering used to design steel structures. These structures include schools, houses, bridges, commercial centers, tall buildings, warehouses, aircraft, ships and stadiums. The design and use of steel frames are commonly employed in the design of steel structures. More advanced structures include steel plates and shells. In structural engineering, a structure is a body or combination of pieces of the rigid bodies in space that form a fitness system for supporting loads and resisting moments. The effects of loads and moments on structures are determined through structural analysis. A steel structure is composed of structural members that are made of steel, usually with standard cross-sectional profiles and standards of chemical composition and mechanical properties. The depth of steel beams used in the construction of bridges is usually governed by the maximum moment, and the cross-section ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open Web Steel Joist
In structural engineering, the open web steel joist (OWSJ) is a lightweight steel truss consisting, in the standard form, of parallel chords and a triangulated web system, proportioned to span between bearing points. The main function of an OWSJ is to provide direct support for roof or floor deck and to transfer the load imposed on the deck to the structural frame i.e. beam and column. In order to accurately design an OWSJ, engineers consider the joist span between bearing points, joist spacing, slope, live loads, dead loads, collateral loads, seismic loads, wind uplift, deflection criteria and maximum joist depth allowed. Many steel joist manufacturers supply economical load tables in order to allow designers to select the most efficient joist sizes for their projects. While OWSJs can be adapted to suit a wide variety of architectural applications, the greatest economy will be realized when utilizing standard details, which may vary from one joist manufacturer to another. S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Castellated Beam
A castellated beam is a Beam (structure), beam style where an I-beam is subjected to a Longitude, longitudinal cut along its web following a specific pattern. The purpose is to divide and reassemble the beam with a deeper web by taking advantage of the cutting pattern. References See also * Cellular beam * Open web steel joist Structural engineering {{civil-engineering-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Klöckner & Co SE
Klöckner & Co SE (commonly abbreviated as KlöCo) is a German producer-independent steel and metal distributor. Klöckner's core business is the sale of steel and non-ferrous metals. The company has an established distribution network and some 150 locations. Products and services The company's product portfolio is divided into the segments long products (steel beams for the construction industry), flat products (sheet for mechanical engineering companies), hollow section (structural hollow section), stainless and quality steel (high-alloyed round steel bars for machine building), aluminum (aluminum sectional rods for plant construction) and special products, such as plastics, ironware and accessories. Klöckner & Co offers a total of over 200,000 products. Alongside unprocessed materials and intermediate products, the Klöckner & Co Group provides services such as cutting and splitting steel strip, cutting to length, flame cutting and surface treatment. History On 28 June 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cameroon
Cameroon (; french: Cameroun, ff, Kamerun), officially the Republic of Cameroon (french: République du Cameroun, links=no), is a country in west-central Africa. It is bordered by Nigeria to the west and north; Chad to the northeast; the Central African Republic to the east; and Equatorial Guinea, Gabon and the Republic of the Congo to the south. Its coastline lies on the Bight of Biafra, part of the Gulf of Guinea and the Atlantic Ocean. Due to its strategic position at the crossroads between West Africa and Central Africa, it has been categorized as being in both camps. Its nearly 27 million people speak 250 native languages. Early inhabitants of the territory included the Sao civilisation around Lake Chad, and the Baka hunter-gatherers in the southeastern rainforest. Portuguese explorers reached the coast in the 15th century and named the area ''Rio dos Camarões'' (''Shrimp River''), which became ''Cameroon'' in English. Fulani soldiers founded the Adamawa Emirate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stiffness
Stiffness is the extent to which an object resists deformation in response to an applied force. The complementary concept is flexibility or pliability: the more flexible an object is, the less stiff it is. Calculations The stiffness, k, of a body is a measure of the resistance offered by an elastic body to deformation. For an elastic body with a single degree of freedom (DOF) (for example, stretching or compression of a rod), the stiffness is defined as k = \frac where, * F is the force on the body * \delta is the displacement produced by the force along the same degree of freedom (for instance, the change in length of a stretched spring) In the International System of Units, stiffness is typically measured in newtons per meter (N/m). In Imperial units, stiffness is typically measured in pounds (lbs) per inch. Generally speaking, deflections (or motions) of an infinitesimal element (which is viewed as a point) in an elastic body can occur along multiple DOF (maximum of s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Investopedia
Investopedia is a financial media website headquartered in New York City. Founded in 1999, Investopedia provides investment dictionaries, advice, reviews, ratings, and comparisons of financial products such as securities accounts. Investopedia has more than 32,000 articles and reaches 20 million unique monthly viewers and posts paid advertisements as investing information. It is part of the Dotdash Meredith family of brands owned by IAC. Investopedia offers educational technology into day trading, asset management, foreign exchange markets, as well as financial educational courses. It also hosts a stock market simulator. Self-paced, online courses from expert instructors are available on Investopedia Academy. History Founding and early history Investopedia was founded in 1999 by Cory Wagner and Cory Janssen in Edmonton, Alberta. At the time, Janssen was a business student at the University of Alberta. Wagner focused on business development and research and development, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Composite Construction
Composite construction is a generic term to describe any building construction involving multiple dissimilar materials. Composite construction is often used in building aircraft, watercraft, and building construction. There are several reasons to use composite materials including increased strength, aesthetics, and environmental sustainability. Structural engineering In structural engineering, composite construction exists when two different materials are bound together so strongly that they act together as a single unit from a structural point of view. When this occurs, it is called composite action. One common example involves steel beams supporting concrete floor slabs. If the beam is not connected firmly to the slab, then the slab transfers all of its weight to the beam and the slab contributes nothing to the load carrying capability of the beam. However, if the slab is connected positively to the beam with studs, then a portion of the slab can be assumed to act composit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bending
In applied mechanics, bending (also known as flexure) characterizes the behavior of a slender structural element subjected to an external load applied perpendicularly to a longitudinal axis of the element. The structural element is assumed to be such that at least one of its dimensions is a small fraction, typically 1/10 or less, of the other two.Boresi, A. P. and Schmidt, R. J. and Sidebottom, O. M., 1993, Advanced mechanics of materials, John Wiley and Sons, New York. When the length is considerably longer than the width and the thickness, the element is called a beam. For example, a closet rod sagging under the weight of clothes on clothes hangers is an example of a beam experiencing bending. On the other hand, a shell is a structure of any geometric form where the length and the width are of the same order of magnitude but the thickness of the structure (known as the 'wall') is considerably smaller. A large diameter, but thin-walled, short tube supported at its ends and loa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
