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Sheerleg
A floating sheerleg (also: shearleg) is a floating water vessel with a crane built on shear legs. Unlike other types of crane vessel, it is not capable of rotating its crane independently of its hull. There is a huge variety in sheerleg capacity. The smaller cranes start at around 50 tons in lifting capacity, with the largest being able to lift 20,000 tons. The bigger sheerlegs usually have their own propulsion system and have a large accommodation facility on board, while smaller units are floating pontoons that need to be towed to their workplace by tugboats. Sheerlegs are commonly used for salvaging ships, assistance in shipbuilding Shipbuilding is the construction of ships and other Watercraft, floating vessels. In modern times, it normally takes place in a specialized facility known as a shipyard. Shipbuilders, also called shipwrights, follow a specialized occupation th ..., loading and unloading large cargo into ships, and bridge building. They have grown consid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crane Vessel
A crane vessel, crane ship, crane barge, or floating crane is a ship with a crane specialized in lifting heavy loads, typically exceeding for modern ships. The largest crane vessels are used for offshore construction. The cranes are fitted to conventional monohulls and barges, but the largest crane vessels are often catamaran or semi-submersible types which provide enhanced stability and reduced platform motion. Many crane vessels are fitted with one or more rotating cranes. Some of the largest crane vessels use fixed sheerlegs instead; in these designs, the crane cannot rotate relative to the ship, and the vessel must be manoeuvered to place loads. Other vessels use large gantry cranes and straddle the load. Types There are several major configurations of crane vessel, usually with overlapping ranges of functionality, but each has at least one major advantage over the others in some circumstances, and consequently all these arrangements coexist. Crane ships Conventional se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Left Coast Lifter
''Left Coast Lifter'' is a floating derrick barge or sheerleg which was built to assist in the eastern span replacement of the San Francisco–Oakland Bay Bridge. The barge carries a shear legs crane which is the largest barge crane ever used on the U.S. West Coast. The barge's name is taken from "Left Coast", a slang phrase that plays on the fact that the U.S. West Coast is on the left of the United States when viewing a map with north oriented at the top. Operational history ''Left Coast Lifter'' was built for the American Bridge/Fluor joint venture (ABFJV), which was the lead contractor on the self-anchored suspension eastern span replacement. The barge was built in Portland, Oregon by U.S. Barge, LLC and ferried to Shanghai, where it was fitted with a shear-leg crane manufactured by Shanghai Zhenhua Port Machinery Co. Ltd (ZPMC). The completed sheerleg was ferried back to the United States on a semi-submersible heavy-lift ship, ''Zhen Hua 22'' (IMO 8106446). The tot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pioneering Spirit (ship, 2014) 005
''Pioneering Spirit'' (formerly ''Pieter Schelte'') is a split hull crane vessel owned by the Switzerland-based Allseas Group designed for the single-lift installation and removal of large oil and gas platforms, and pipelines. The , vessel is the List of largest ships by gross tonnage, world's largest vessel by gross tonnage, the heaviest vehicle ever made and since September 2021 also the largest floating sheerleg in the world. It was built in South Korea by Daewoo Shipbuilding & Marine Engineering (now Hanwha Ocean) in 2013 at a cost of €2.6 billion. It commenced offshore operations in August 2016. Development The initial concept, by Allseas technical director W.P. Kaldenbach, was of a vessel capable of lifting entire platforms, and in 1987 Allseas declared its intention to build it. The initial idea featured two rigidly connected, self-propelled supertankers, with a large slot at the bows enabling it to install platform topsides in one piece. Early designs featured a flot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pioneering Spirit
''Pioneering Spirit'' (formerly ''Pieter Schelte'') is a split hull crane vessel owned by the Switzerland-based Allseas Group designed for the single-lift installation and removal of large oil and gas platforms, and pipelines. The , vessel is the world's largest vessel by gross tonnage, the heaviest vehicle ever made and since September 2021 also the largest floating sheerleg in the world. It was built in South Korea by Daewoo Shipbuilding & Marine Engineering (now Hanwha Ocean) in 2013 at a cost of €2.6 billion. It commenced offshore operations in August 2016. Development The initial concept, by Allseas technical director W.P. Kaldenbach, was of a vessel capable of lifting entire platforms, and in 1987 Allseas declared its intention to build it. The initial idea featured two rigidly connected, self-propelled supertankers, with a large slot at the bows enabling it to install platform topsides in one piece. Early designs featured a flotation and ballasting system and acti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shear Legs
Shear legs, also known as sheers, shears, or sheer legs, are a form of two-legged lifting device. Shear legs may be permanent, formed of a solid A-frame and supports, as commonly seen on land and the floating sheerleg, or temporary, as aboard a vessel lacking a fixed crane or derrick. When fixed, they are often used for very heavy lifting, as in tank recovery, shipbuilding, and offshore salvage operations. At dockyards they hoist masts and other substantial rigging parts on board. They are sometimes temporarily rigged on sailboats for similar tasks. Uses On land Shear legs are a lifting device related to the gin pole, derrick and tripod (lifting device). Shears are an A-frame of any kind of material such as timbers or metal, the feet resting on or in the ground or on a solid surface which will not let them move and the top held in place with guy-wires or guy ropes simply called "guys". Shear legs only need two guys whereas a gin pole needs at least three. The U. S. Army Fie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smit International
Smit Internationale N.V. (or Smit International) is a Dutch company operating in the maritime sector. Founded in 1842 by Fop Smit, it provided towing services in the Port of Rotterdam. Within its first decades, it branched into shipbuilding and, just after the start of the twentieth century, salvage services. The firm developed an international presence, such as its Singapore-based subsidiary in 1975, and its acquisition of Costain Group's Land & Marine business in 1996. By 2009, inclusive of its subsidiaries and the joint ventures with controlling stakes, Smit International operated a fleet of 408 ships. Smit International has undertaken the salvage of various vessels, including , , , and ''Kursk''. In 2010, it was acquired by Boskalis and delisted from the Euronext Amsterdam. History The company dates back to the early 1840s and the undertakings of Fop Smit, who operated the paddle steamer ''Kinderdijk'' to safely guided various other vessels into the Port of Rotter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chesapeake 1000
''Chesapeake 1000'' (formerly ''Sun 800'') is a heavy lift sheerleg crane ship, owned by Donjon Marine Co., capable of lifting . It is one of the largest boomable stiff-leg-derrick barges on the eastern seaboard of the United States. The barge measures long, with a beam of ; its draft is . Since late March 2024, it has been involved in salvage efforts at Baltimore, following the Francis Scott Key Bridge collapse. History The crane barge was built by Kelso Marine in Galveston, Texas for Sun Shipbuilding in 1972 at a cost of nearly $5 million. At the time, it was the largest crane ship in the world. The crane was initially able to lift , and so was named ''Sun 800''. In 1982, Sun's parent, the Sun Oil Company, sold Sun Shipbuilding to Ed Paden, who renamed the business to Pennsylvania Shipbuilding (Penn Ship); yard assets were renamed similarly, and the crane was renamed ''Penn 800''. While en-route to Puerto Rico in the mid-1980s, the derrick barge was caught in a hurri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crane (machine)
A crane is a machine used to move materials both vertically and horizontally, utilizing a system of a boom, hoist, wire ropes or chains, and sheaves for lifting and relocating heavy objects within the swing of its boom. The device uses one or more simple machines, such as the lever and pulley, to create mechanical advantage to do its work. Cranes are commonly employed in transportation for the loading and unloading of freight, in construction for the movement of materials, and in manufacturing for the assembling of heavy equipment. The first known crane machine was the shaduf, a water-lifting device that was invented in ancient Mesopotamia (modern Iraq) and then appeared in ancient Egyptian technology. Construction cranes later appeared in ancient Greece, where they were powered by men or animals (such as donkeys), and used for the construction of buildings. Larger cranes were later developed in the Roman Empire, employing the use of human treadwheels, permitting the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Of Hamburg
The Port of Hamburg (, ) is a seaport on the river Elbe in Hamburg, Germany, from its mouth on the North Sea. Known as Germany's "Gateway to the World" (), it is the country's largest seaport by volume. In terms of TEU throughput, Hamburg is the third-busiest port in Europe (after Rotterdam and Antwerp) and 15th-largest worldwide. In 2014, 9.73 million TEUs (20-foot standard container equivalents) were handled in Hamburg. The port covers an area of (64.80 km2 usable), of which 43.31 km2 (34.12 km2) are land areas. The branching Elbe creates an ideal place for a port complex with warehousing and transshipment facilities. The extensive free port was established when Hamburg joined the German Customs Union. It enabled duty-free storing of imported goods and also importing of materials which were processed, re-packaged, used in manufacturing and then re-exported without incurring customs duties. The free port was abandoned in 2013. History The port ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antwerp Port Authority
Port of Antwerp-Bruges is the port authority that manages the ports of Antwerp and Bruges (Zeebrugge) since the merger between the port companies of both ports in 2022. It is a limited liability company of public law with the City of Antwerp and the City of Bruges Bruges ( , ; ; ) is the capital and largest city of the province of West Flanders, in the Flemish Region of Belgium. It is in the northwest of the country, and is the sixth most populous city in the country. The area of the whole city amoun ... as its shareholders. The Port of Antwerp-Bruges has made a commitment to environmental sustainability and climate neutrality by 2050. As part of this challenge, the port will be introducing (in partnership with CMB.TECH) the Hydrotug 1, the world's first hydrogen-powered tugboat. References Antwerp-Bruges Ports and harbours of the North Sea Port authorities {{Belgium-company-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floating Crane Samson
Floating may refer to: * a type of dental work performed on horse teeth * use of an isolation tank * the guitar-playing technique where chords are sustained rather than scratched * ''Floating'' (play), by Hugh Hughes * Floating (psychological phenomenon), slipping into altered states * Floating exchange rate, a market-valued currency * Floating voltage, and floating ground, a voltage or ground in an electric circuit that is not connected to the Earth or another reference voltage * Floating point, a representation in computing of rational numbers most commonly associated with the IEEE 754 standard * ''Floating'' (film), a 1997 American drama film Albums and songs * ''Floating'' (Eloy album) (1974) * ''Floating'' (Ketil Bjørnstad album) (2005) * ''Floating'' (EP), a 1991 EP by Bill Callahan * "Floating" (The Moody Blues song) (1969) * "Floating" (Megan Rochell song) (2006) * "Floating" (Jape song) (2004) * "Floating", a song by Jolin Tsai from the 2000 album '' Don't Stop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
