-
1 span
spæn
1. noun1) (the length between the supports of a bridge or arch: The first span of the bridge is one hundred metres long.) luz, palmo2) (the full time for which anything lasts: Seventy or eighty years is the normal span of a man's life.) espacio, período, lapso
2. verb(to stretch across: A bridge spans the river.) atravesar, cruzartr[spæn]1 (of horses) tronco; (of oxen) yunta————————tr[spæn]2 (of time) espacio, período, lapso■ over a span of five years durante un período de cinco años, en un lapso de cinco años1 (cross) atravesar, cruzar2 (extend over) abarcar, extenderse a■ a career spanning 50 years in showbusiness una trayectoria que abarca 50 años en el mundo del espectáculo————————tr[spæn]1→ link=spin spin{span n1) : lapso m, espacio m (de tiempo)life span: duración de la vida2) : luz f (entre dos soportes)n.• duración s.f.• envergadura s.f.• extensión completa s.f.• ojo s.m.• palmo (Unidades) s.m.• palmo de la mano s.m.• pareja de caballos s.f.• tramo s.m.• trecho s.m.v.• atravesar v.• extenderse sobre v.
I spæna) ( full extent - of hand) palmo m; (- of wing) envergadura f; (- of bridge, arch) luz fb) ( part of bridge) arco mc) ( of time) lapso m, espacio m, período md) ( range)at this age children have a short attention span — a esta edad los niños no pueden mantener la atención por períodos prolongados
the whole span of American history — la historia americana en toda su extensión; life span
II
a) ( extend over) abarcar*a career that spanned 60 years — una carrera que abarcó 60 años or que se extendió a lo largo de 60 años
b) ( cross) \<\<bridge\>\> \<\<river\>\> extenderse* sobre, cruzar*
III
I [spæn]1. N1) [of hand] palmo m ; [of wing] envergadura f2) [of road etc] tramo m ; [of bridge, arch] luz f ; [of roof] vano ma span of 50 metres — (=bridge) una luz de 50 metros
3) [of time] lapso m, espacio m4) (fig)the whole span of world affairs — toda la extensión de los asuntos mundiales, los asuntos mundiales en toda su amplitud
5) † (=measure) palmo m6) (=yoke) [of oxen] yunta f ; [of horses] pareja f2. VT1) [bridge] extenderse sobre, cruzar2) (in time) abarcar3) (=measure) medir a palmos
II
[spæn]PT of spin* * *
I [spæn]a) ( full extent - of hand) palmo m; (- of wing) envergadura f; (- of bridge, arch) luz fb) ( part of bridge) arco mc) ( of time) lapso m, espacio m, período md) ( range)at this age children have a short attention span — a esta edad los niños no pueden mantener la atención por períodos prolongados
the whole span of American history — la historia americana en toda su extensión; life span
II
a) ( extend over) abarcar*a career that spanned 60 years — una carrera que abarcó 60 años or que se extendió a lo largo de 60 años
b) ( cross) \<\<bridge\>\> \<\<river\>\> extenderse* sobre, cruzar*
III
-
2 Eads, James Buchanan
SUBJECT AREA: Civil engineering[br]b. 23 May 1820 Lawrenceburg, Indiana, USAd. 8 March 1887 Nassau, Bahamas[br]American bridge-builder and hydraulic engineer.[br]The son of an immigrant merchant, he was educated at the local school, leaving at the age of 13 to take on various jobs, eventually becoming a purser on a Mississippi steamboat. He was struck by the number of wrecks lying in the river; he devised a diving bell and, at the age of 22, set up in business as a salvage engineer. So successful was he at this venture that he was able to retire in three years' time and set up the first glassworks west of the Ohio River. This, however, was a failure and in 1848 he returned to the business of salvage on the Ohio River. He was so successful that he was able to retire permanently in 1857. From the start of the American Civil War in 1861 he recommended to President Lincoln that he should obtain a fleet of armour-plated, steam-powered gunboats to operate on the western rivers. He built seven of these himself, later building or converting a further eighteen. After the end of the war he obtained the contract to design and build a bridge over the Mississippi at St Louis. In this he made use of his considerable knowledge of the river-bed currents. He built a bridge with a 500 ft (150 m) centre span and a clearance of 50 ft (15 m) that was completed in 1874. The three spans are, respectively, 502 ft, 520 ft and 502 ft (153 m, 158 m and 153 m), each being spanned by an arch. The Mississippi river is subject to great changes, both seasonal and irregular, with a range of over 41 ft (12.5 m) between low and high water and a velocity varying from 4 ft (1.2 m) to 12 1/2 ft (3.8 m) per second. The Eads Bridge was completed in 1874 and in the following year Eads was commissioned to open one of the mouths of the Mississippi, for which he constructed a number of jetty traps. He was involved later in attempts to construct a ship railway across the isthmus of Panama. He had been suffering from indifferent health for some years, and this effort was too much for him. He died on 8 March 1887. He was the first American to be awarded the Royal Society of Arts' Albert Medal.[br]Principal Honours and DistinctionsRoyal Society of Arts Albert Medal.Further ReadingD.B.Steinman and S.R.Watson, 1941, Bridges and their Builders, New York: Dover Publications.T.I.Williams, Biographical Dictionary of Science.IMcN -
3 Roebling, John Augustus
SUBJECT AREA: Civil engineering[br]b. 12 July 1806 Muhlhausen, Prussiad. 22 July 1869 Brooklyn, New York, USA[br]German/American bridge engineer and builder.[br]The son of Polycarp Roebling, a tobacconist, he studied mathematics at Dr Unger's Pedagogium in Erfurt and went on to the Royal Polytechnic Institute in Berlin, from which he graduated in 1826 with honours in civil engineering. He spent the next three years working for the Prussian government on the construction of roads and bridges. With his brother and a group of friends, he emigrated to the United States, sailing from Bremen on 23 May 1831 and docking in Philadelphia eleven weeks later. They bought 7,000 acres (2,800 hectares) in Butler County, western Pennsylvania, and established a village, at first called Germania but later known as Saxonburg. Roebling gave up trying to establish himself as a farmer and found work for the state of Pennsylvania as Assistant Engineer on the Beaver River canal and others, then surveying a railroad route across the Allegheny Mountains. During his canal work, he noted the failings of the hemp ropes that were in use at that time, and recalled having read of wire ropes in a German journal; he built a rope-walk at his Saxonburg farm, bought a supply of iron wire and trained local labour in the method of wire twisting.At this time, many canals crossed rivers by means of aqueducts. In 1844, the Pennsylvania Canal aqueduct across the Allegheny River was due to be renewed, having become unsafe. Roebling made proposals which were accepted by the canal company: seven wooden spans of 162 ft (49 m) each were supported on either side by a 7 in. (18 cm) diameter cable, Roebling himself having to devise all the machinery required for the erection. He subsequently built four more suspension aqueducts, one of which was converted to a toll bridge and was still in use a century later.In 1849 he moved to Trenton, New Jersey, where he set up a new wire rope plant. In 1851 he started the construction (completed in 1855) of an 821 ft (250 m) long suspension railroad bridge across the Niagara River, 245 ft (75 m) above the rapids; each cable consisted of 3,640 wrought iron wires. A lower deck carried road traffic. He also constructed a bridge across the Ohio River between Cincinnati and Covington, a task which was much protracted due to the Civil War; this bridge was finally completed in 1866.Roebling's crowning achievement was to have been the design and construction of the bridge over the Hudson River between Brooklyn and Staten Island, New York, but he did not live to see its completion. It had a span of 1,595 ft (486 m), designed to bear a load of 18,700 tons (19,000 tonnes) with a headroom of 135 ft (41 m). The work of building had barely started when, at the Brooklyn wharf, a boat crushed Roebling's foot against the timbering and he died of tetanus three weeks later. His son, Washington Augustus Roebling, then took charge of this great work.[br]Further ReadingD.B.Steinman and S.R.Watson, 1941, Bridges and their Builders, New York: Dover Books.D.McCullough, 1982, The Great Bridge: The Epic Story of the Building of the Brooklyn Bridge, New York: Simon \& Schuster.IMcNBiographical history of technology > Roebling, John Augustus
-
4 Brunel, Isambard Kingdom
SUBJECT AREA: Civil engineering, Land transport, Mechanical, pneumatic and hydraulic engineering, Ports and shipping, Public utilities, Railways and locomotives[br]b. 9 April 1806 Portsea, Hampshire, Englandd. 15 September 1859 18 Duke Street, St James's, London, England[br]English civil and mechanical engineer.[br]The son of Marc Isambard Brunel and Sophia Kingdom, he was educated at a private boarding-school in Hove. At the age of 14 he went to the College of Caen and then to the Lycée Henri-Quatre in Paris, after which he was apprenticed to Louis Breguet. In 1822 he returned from France and started working in his father's office, while spending much of his time at the works of Maudslay, Sons \& Field.From 1825 to 1828 he worked under his father on the construction of the latter's Thames Tunnel, occupying the position of Engineer-in-Charge, exhibiting great courage and presence of mind in the emergencies which occurred not infrequently. These culminated in January 1828 in the flooding of the tunnel and work was suspended for seven years. For the next five years the young engineer made abortive attempts to find a suitable outlet for his talents, but to little avail. Eventually, in 1831, his design for a suspension bridge over the River Avon at Clifton Gorge was accepted and he was appointed Engineer. (The bridge was eventually finished five years after Brunel's death, as a memorial to him, the delay being due to inadequate financing.) He next planned and supervised improvements to the Bristol docks. In March 1833 he was appointed Engineer of the Bristol Railway, later called the Great Western Railway. He immediately started to survey the route between London and Bristol that was completed by late August that year. On 5 July 1836 he married Mary Horsley and settled into 18 Duke Street, Westminster, London, where he also had his office. Work on the Bristol Railway started in 1836. The foundation stone of the Clifton Suspension Bridge was laid the same year. Whereas George Stephenson had based his standard railway gauge as 4 ft 8½ in (1.44 m), that or a similar gauge being usual for colliery wagonways in the Newcastle area, Brunel adopted the broader gauge of 7 ft (2.13 m). The first stretch of the line, from Paddington to Maidenhead, was opened to traffic on 4 June 1838, and the whole line from London to Bristol was opened in June 1841. The continuation of the line through to Exeter was completed and opened on 1 May 1844. The normal time for the 194-mile (312 km) run from Paddington to Exeter was 5 hours, at an average speed of 38.8 mph (62.4 km/h) including stops. The Great Western line included the Box Tunnel, the longest tunnel to that date at nearly two miles (3.2 km).Brunel was the engineer of most of the railways in the West Country, in South Wales and much of Southern Ireland. As railway networks developed, the frequent break of gauge became more of a problem and on 9 July 1845 a Royal Commission was appointed to look into it. In spite of comparative tests, run between Paddington-Didcot and Darlington-York, which showed in favour of Brunel's arrangement, the enquiry ruled in favour of the narrow gauge, 274 miles (441 km) of the former having been built against 1,901 miles (3,059 km) of the latter to that date. The Gauge Act of 1846 forbade the building of any further railways in Britain to any gauge other than 4 ft 8 1/2 in (1.44 m).The existence of long and severe gradients on the South Devon Railway led to Brunel's adoption of the atmospheric railway developed by Samuel Clegg and later by the Samuda brothers. In this a pipe of 9 in. (23 cm) or more in diameter was laid between the rails, along the top of which ran a continuous hinged flap of leather backed with iron. At intervals of about 3 miles (4.8 km) were pumping stations to exhaust the pipe. Much trouble was experienced with the flap valve and its lubrication—freezing of the leather in winter, the lubricant being sucked into the pipe or eaten by rats at other times—and the experiment was abandoned at considerable cost.Brunel is to be remembered for his two great West Country tubular bridges, the Chepstow and the Tamar Bridge at Saltash, with the latter opened in May 1859, having two main spans of 465 ft (142 m) and a central pier extending 80 ft (24 m) below high water mark and allowing 100 ft (30 m) of headroom above the same. His timber viaducts throughout Devon and Cornwall became a feature of the landscape. The line was extended ultimately to Penzance.As early as 1835 Brunel had the idea of extending the line westwards across the Atlantic from Bristol to New York by means of a steamship. In 1836 building commenced and the hull left Bristol in July 1837 for fitting out at Wapping. On 31 March 1838 the ship left again for Bristol but the boiler lagging caught fire and Brunel was injured in the subsequent confusion. On 8 April the ship set sail for New York (under steam), its rival, the 703-ton Sirius, having left four days earlier. The 1,340-ton Great Western arrived only a few hours after the Sirius. The hull was of wood, and was copper-sheathed. In 1838 Brunel planned a larger ship, some 3,000 tons, the Great Britain, which was to have an iron hull.The Great Britain was screwdriven and was launched on 19 July 1843,289 ft (88 m) long by 51 ft (15.5 m) at its widest. The ship's first voyage, from Liverpool to New York, began on 26 August 1845. In 1846 it ran aground in Dundrum Bay, County Down, and was later sold for use on the Australian run, on which it sailed no fewer than thirty-two times in twenty-three years, also serving as a troop-ship in the Crimean War. During this war, Brunel designed a 1,000-bed hospital which was shipped out to Renkioi ready for assembly and complete with shower-baths and vapour-baths with printed instructions on how to use them, beds and bedding and water closets with a supply of toilet paper! Brunel's last, largest and most extravagantly conceived ship was the Great Leviathan, eventually named The Great Eastern, which had a double-skinned iron hull, together with both paddles and screw propeller. Brunel designed the ship to carry sufficient coal for the round trip to Australia without refuelling, thus saving the need for and the cost of bunkering, as there were then few bunkering ports throughout the world. The ship's construction was started by John Scott Russell in his yard at Millwall on the Thames, but the building was completed by Brunel due to Russell's bankruptcy in 1856. The hull of the huge vessel was laid down so as to be launched sideways into the river and then to be floated on the tide. Brunel's plan for hydraulic launching gear had been turned down by the directors on the grounds of cost, an economy that proved false in the event. The sideways launch with over 4,000 tons of hydraulic power together with steam winches and floating tugs on the river took over two months, from 3 November 1857 until 13 January 1858. The ship was 680 ft (207 m) long, 83 ft (25 m) beam and 58 ft (18 m) deep; the screw was 24 ft (7.3 m) in diameter and paddles 60 ft (18.3 m) in diameter. Its displacement was 32,000 tons (32,500 tonnes).The strain of overwork and the huge responsibilities that lay on Brunel began to tell. He was diagnosed as suffering from Bright's disease, or nephritis, and spent the winter travelling in the Mediterranean and Egypt, returning to England in May 1859. On 5 September he suffered a stroke which left him partially paralysed, and he died ten days later at his Duke Street home.[br]Further ReadingL.T.C.Rolt, 1957, Isambard Kingdom Brunel, London: Longmans Green. J.Dugan, 1953, The Great Iron Ship, Hamish Hamilton.IMcNBiographical history of technology > Brunel, Isambard Kingdom
См. также в других словарях:
bridge — bridge1 bridgeable, adj. bridgeless, adj. bridgelike, adj. /brij/, n., v., bridged, bridging, adj. n. 1. a structure spanning and providing passage over a river, chasm, road, or the like. 2. a connecting, transitional, or intermediate route or… … Universalium
Hawkesbury River Railway Bridge — Infobox Bridge bridge name=Hawkesbury River Railway Bridge caption=The Hawkesbury River rail bridge looking north official name= carries=Trains crosses=Hawkesbury River locale= maint= id= design= mainspan= length= width= height= load= clearance=… … Wikipedia
Triborough Bridge and Tunnel Authority — Infobox Company name = Triborough Bridge and Tunnel Authority type = Public benefit corporation genre = foundation = New York State (1933) founder = location city = 2 Broadway, New York, NY, 10004 location country = location = locations = area… … Wikipedia
Esplanade Bridge — Bridges in Singapore bridge name = Esplanade Bridge official name = Esplanade Bridge chinese name = 滨海桥 locale = Downtown Core, Singapore carries = Motor vehicles and pedestrians crosses = Marina Bay mainspan = length = 260 m width = 70 m open =… … Wikipedia
Plattsmouth Bridge — The Plattsmouth Bridge is owned by the city of Plattsmouth truss bridge over the Missouri River connecting Cass County, Nebraska and Mills County, Iowa via U.S. Route 34.The bridge has seven spans including the 402 foot cantilevered through truss … Wikipedia
Elvet Bridge — is a mediaeval masonry arch bridge across the River Wear, in Durham, England. It is a Grade I listed building.History The bridge was constructed in 1160 [ [http://www.localhistories.org/durham.html A Brief History of Durham ] ] during the time of … Wikipedia
Seven Mile Bridge Run — The Seven Mile Bridge run is an annual race held in the Florida Keys by the Marathon Runners Club. The race is run as a benefit for youth activities in Marathon, Florida. The event was first held in 1982 to commemorate the completion of the… … Wikipedia
I-35W Mississippi River bridge — This article is about the bridge that collapsed in 2007. For the replacement bridge, see I 35W Saint Anthony Falls Bridge. Mississippi River Bridge … Wikipedia
Narrows Bridge (Perth) — The Narrows Bridge seen prior to the completion of the railway line The Narrows Bridge is a freeway crossing of the Swan River in Perth, Western Australia, at The Narrows between Mill Point and Mount Eliza. Made up of two road bridges and a… … Wikipedia
San Francisco – Oakland Bay Bridge — Infobox Bridge bridge name = San Francisco – Oakland Bay Bridge image size = 260px caption = Western Span of the bridge at night official name = James Sunny Jim Rolph Bridge carries = 10 lanes (5 westbound on upper level, 5 eastbound on lower) of … Wikipedia
Coraopolis Bridge — The modern bridge. Official name Neville Island Coraopolis Bridge Carries Grand Avenue (Neville Twp)/Pennsylvania Route 51 (Coraopolis) … Wikipedia
