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Alviksbron April 2008
Alviksbron (Swedish for ''The Alvik Bridge'') is a box girder bridge in central Stockholm, Sweden. Stretching over Oxhålssundet, it connects Stora Essingen island to the western suburb Bromma. Built 1996-1998 by the Nordic Construction Company at a cost of 180 million SEK, it has served the Tvärbanan light rail line and pedestrians and bicyclists since its inauguration in August 2000. The name is derived from Alvik, originally a local manor house built in 1819 and demolished in 1930. The bridge is 400 metres in length with a 140-metre central span and a horizontal clearance of 24 metres. The underside of the bridge tie forms an arch intended to make the bridge as slender as possible. The two pillars standing in the water each consist of two thin concrete plates dressed in two-quarters brick with a common concrete foundation. They are illuminated after dark. The construction is pre-tensioned longitudinally by cables, but non-tensioned across. The topside was stretched as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alviksbron April 2008
Alviksbron (Swedish for ''The Alvik Bridge'') is a box girder bridge in central Stockholm, Sweden. Stretching over Oxhålssundet, it connects Stora Essingen island to the western suburb Bromma. Built 1996-1998 by the Nordic Construction Company at a cost of 180 million SEK, it has served the Tvärbanan light rail line and pedestrians and bicyclists since its inauguration in August 2000. The name is derived from Alvik, originally a local manor house built in 1819 and demolished in 1930. The bridge is 400 metres in length with a 140-metre central span and a horizontal clearance of 24 metres. The underside of the bridge tie forms an arch intended to make the bridge as slender as possible. The two pillars standing in the water each consist of two thin concrete plates dressed in two-quarters brick with a common concrete foundation. They are illuminated after dark. The construction is pre-tensioned longitudinally by cables, but non-tensioned across. The topside was stretched as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridge Tie
A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, and the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones. The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge (dating from the 13th century BC, in the Peloponnese) is one of the oldest arch bridges still in existence and use. Etymology The ''Oxford English Dictionary'' traces the origin of the wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges In Stockholm
A bridge is a structure built to Span (engineering), span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, and the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones. The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge (dating from the 13th century BC, in the Peloponnese) is one of the oldest arch bridges still in existence and use. Etymology The ''Oxford English Dictionary'' traces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fredriksdalsbron
Fredriksdalsbron is a bridge in central Stockholm, Sweden. Serving the light rail line Tvärbanan, it stretches north from the station west of the Gullmarsplan metro station, immediately makes a sharp eastward turn to plunge under two other bridges, Skanstullsbron and Johanneshovsbron, to continue eastward over a viaduct leading down to the station Mårtensdal in the newly built suburb Hammarby sjöstad. During the planning process the project name "Kvarnbron" (''Mill Bridge'') was used. The bridge was built by Nordic Construction Company (NCC) in 2000–2002 as the first part of an extension of the light rail. 379 metres in length, it rests on 15 pillars of which 2 are anchored into the bedrock while the others are steel point-bearing piles. The bridge deck is formed as a non-tensioned reinforced concrete tray rounded underneath.PDF) Abutments and revetments are dressed in slate. The maximum span is 30 metres, and the width varies from 9.4 to 11.4 metres. The longest pill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gröndalsbron
Gröndalsbron ( sv, The Gröndal bridge) are two bridges in central Stockholm, Sweden, connecting the island Stora Essingen to the southern mainland district Gröndal. The older bridge, inaugurated in 1967, forms a 460-metre section of the Essingeleden motorway, of which 260 metres constitute the bridge, divided into three pre-stressed concrete frames, 70, 120, and 70 metres in length. Due to several ramps connecting to the bridge the width varies from 38 to 45 metres, while the horizontal clearance is 26 metres throughout the entire structure. The second bridge, inaugurated in 2000, forms part of the Tvärbanan light rail line and is a 120 metres long pre-stressed concrete box girder bridge. After its inauguration, slip cracks have been discovered in the bridge, a discovery which was covered up for at least a year and the following revelation in media became a main local news event for some time. The bridge has since been reinforced and is still in operation. See also * L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skansbron
Skansbron (Swedish: "The Fortlet Bridge") is a bascule bridge in central Stockholm, Sweden. Stretching over the canal Hammarbykanalen, it connects the major island Södermalm to the southern mainland district Södra Hammarbyhamnen. Before the lake Hammarbysjön was transformed into a canal in the 1920s, Skanstull, the southern tollgate of the city, was surrounded by fortifications, including a moat over which a simple wooden bridge led into the city. In 1914, the City Council had determined the double traffic load at Slussen, caused by west-east going ships and north-south bound vehicles, would be solved by rerouting the ships south of Södermalm through a canal to be built. Delayed by World War I, the works were finally begun in 1923, and by 1925 a double leaf steel drawbridge was completed. The bridge is 14.9 metres wide with a 10.7-metre wide roadway, and has a horizontal clearance of 12.5 metres. During the construction of the bridge, the north–south traffic flow was c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Bridges In Stockholm
This is a list of some of the most notable bridges and viaducts in Stockholm, starting with those located closest to the city centre. Many more bridges and viaducts could, of course, be added, including those on the rail and motorway networks, and the many grade-separated junctions in the suburbs which are a product of postwar city planning. Historical * Sveabron (where present-day Odengatan passes over Sveavägen) * Nybro or Stora Ladugårdslandsbron (across today's Berzelii Park) * Näckströms bro (connecting Norrmalm and Blasieholmen) Additionally, during the cold winters in the 19th century, ice in the city harbour made it necessary to replace ferries by temporary pontoon bridges sometimes more than 300 m in length. See also * Geography of Stockholm References {{reflist Bridges Bridges Bridges in Stockholm Stockholm Stockholm () is the Capital city, capital and List of urban areas in Sweden by population, largest city of Sweden as well as the List of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laminate
Lamination is the technique/process of manufacturing a material in multiple layers, so that the composite material achieves improved strength, stability, sound insulation, appearance, or other properties from the use of the differing materials, such as plastic. A laminate is a permanently assembled object created using heat, pressure, welding, or adhesives. Various coating machines, machine presses and calendering equipment are used. Materials There are different lamination processes, depending primarily on the type or types of materials to be laminated. The materials used in laminates can be identical or different, depending on the process and the object to be laminated. Textile Laminated fabric are widely used in different fields of human activity, including medical and military. Woven fabrics (organic and inorganic based) are usually laminated by different chemical polymers to give them useful properties like chemical resistance, dust, grease, windproofness, photolumine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbon Fibre
Carbon fiber-reinforced polymers (American English), carbon-fibre-reinforced polymers (Commonwealth English), carbon-fiber-reinforced plastics, carbon-fiber reinforced-thermoplastic (CFRP, CRP, CFRTP), also known as carbon fiber, carbon composite, or just carbon, are extremely strong and light fiber-reinforced plastics that contain carbon fibers. CFRPs can be expensive to produce, but are commonly used wherever high strength-to-weight ratio and stiffness (rigidity) are required, such as aerospace, superstructures of ships, automotive, civil engineering, sports equipment, and an increasing number of consumer and technical applications. The binding polymer is often a thermoset resin such as epoxy, but other thermoset or thermoplastic polymers, such as polyester, vinyl ester, or nylon, are sometimes used. The properties of the final CFRP product can be affected by the type of additives introduced to the binding matrix (resin). The most common additive is silica, but other addit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shearing (physics)
In continuum mechanics, shearing refers to the occurrence of a shear strain, which is a deformation of a material substance in which parallel internal surfaces slide past one another. It is induced by a shear stress in the material. Shear strain is distinguished from volumetric strain. The change in a material's volume in response to stress and change of angle is called the angle of shear. Overview Often, the verb ''shearing'' refers more specifically to a mechanical process that causes a plastic shear strain in a material, rather than causing a merely elastic one. A plastic shear strain is a continuous (non-fracturing) deformation that is irreversible, such that the material does not recover its original shape. It occurs when the material is yielding. The process of shearing a material may induce a volumetric strain along with the shear strain. In soil mechanics, the volumetric strain associated with shearing is known as Reynolds' dilation if it increases the volume, or c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brick
A brick is a type of block used to build walls, pavements and other elements in masonry construction. Properly, the term ''brick'' denotes a block composed of dried clay, but is now also used informally to denote other chemically cured construction blocks. Bricks can be joined using mortar, adhesives or by interlocking them. Bricks are usually produced at brickworks in numerous classes, types, materials, and sizes which vary with region and time period, and are produced in bulk quantities. ''Block'' is a similar term referring to a rectangular building unit composed of similar materials, but is usually larger than a brick. Lightweight bricks (also called lightweight blocks) are made from expanded clay aggregate. Fired bricks are one of the longest-lasting and strongest building materials, sometimes referred to as artificial stone, and have been used since circa 4000 BC. Air-dried bricks, also known as mud-bricks, have a history older than fired bricks, and have an additi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arch
An arch is a vertical curved structure that spans an elevated space and may or may not support the weight above it, or in case of a horizontal arch like an arch dam, the hydrostatic pressure against it. Arches may be synonymous with vaults, but a vault may be distinguished as a continuous arch forming a roof. Arches appeared as early as the 2nd millennium BC in Mesopotamian brick architecture, and their systematic use started with the ancient Romans, who were the first to apply the technique to a wide range of structures. Basic concepts An arch is a pure compression form. It can span a large area by resolving forces into compressive stresses, and thereby eliminating tensile stresses. This is sometimes denominated "arch action". As the forces in the arch are transferred to its base, the arch pushes outward at its base, denominated "thrust". As the rise, i. e. height, of the arch decreases the outward thrust increases. In order to preserve arch action and prevent collapse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
