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Anji Khad Bridge

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63-750: The Anji Khad bridge is a cable-stayed bridge connecting the Katra and Reasi sections of the Udhampur-Srinagar-Baramulla-Rail-Link (USBRL) in the Jammu Division of Jammu and Kashmir , India. The bridge lies southeast of the Chenab Bridge , near Reasi, along which the alignment of the railway line crosses the deep gorge of the Anji Khad or chasm. An earlier arch bridge design proposal similar to that of

126-528: A 120 meter long viaduct. The bridge is asymmetrical, supported by 96 cables anchored to a single pylon on the Reasi side. The initial cost of the project was set at ₹ 458 crore . The basic design proposed by a foreign firm is used. The head of the construction of Northern Railways has informed that the detailed design is being worked out. Cable-stayed bridge A cable-stayed bridge has one or more towers (or pylons ), from which cables support

189-460: A 2-span or 3-span cable-stayed bridge, the loads from the main spans are normally anchored back near the end abutments by stays in the end spans. For more spans, this is not the case and the bridge structure is less stiff overall. This can create difficulties in both the design of the deck and the pylons. Examples of multiple-span structures in which this is the case include Ting Kau Bridge , where additional 'cross-bracing' stays are used to stabilise

252-399: A conventional suspension bridge in employing a parabolic cable to support the centre of the bridge, but differed in its use of 32 inclined stays to support the remainder of the load. Each stay consisted of a flat wrought iron bar attached to the bridge deck, and a wire rope composed of 1,000 1 ⁄ 10 -inch (2.5 mm) diameter wires joining the wrought iron bar to one of

315-518: A landscaped public park and pedestrian footpath across the river. The proposal proved very popular with the area's residents, and a May 1973 campaign led by John Betjeman , Sybil Thorndike and Laurie Lee raised a petition of 2,000 signatures for the bridge to be permanently closed to traffic. Although the GLC reopened the bridge to traffic in July 1973, it also announced its intention to proceed with

378-500: A lightweight replacement deck was laid. The modifications were intended to be a stopgap measure to extend the bridge's life by five years while a replacement was being considered; in the GLC's estimation the work would last for a maximum of 30 years, but the bridge would need to be either closed or replaced well before then. In early 1973, the Architectural Review submitted a proposal to convert Albert Bridge into

441-555: A main arch span of 265 m (869 ft), and a deck height of 189 m (620 ft). Quality aspects, construction standards, indigenous materials, and the painting scheme were proposed to be similar to the Chenab Bridge. Later, a committee headed by a former railway board chairman recommended that the location was not suitable for an arch bridge. In particular, the unstable geology of the Himalayan mountains combined with

504-432: A more conventional design. A protest campaign led by John Betjeman resulted in the withdrawal of the proposal, but serious concerns about the integrity of the bridge continued. In 1964 an experimental tidal flow scheme was introduced, in which only northbound traffic was permitted to use the bridge in the mornings and southbound traffic in the evenings. The bridge's condition continued to deteriorate, however, and in 1970

567-426: A new timber deck was laid, at a total cost of £25,000 (about £3.29 million in 2024). Despite these improvements, Bazalgette was still concerned about its structural integrity and a weight limit of five tons was imposed on vehicles using the bridge. With a roadway only 27 feet (8.2 m) wide and subject to weight restrictions from early on, Albert Bridge was ill-suited to the advent of motorised transport in

630-585: A simple beam bridge . As a result, today the bridge is an unusual hybrid of three different design styles. It is an English Heritage Grade II* listed building . Built as a toll bridge , it was commercially unsuccessful. Six years after its opening it was taken into public ownership and the tolls were lifted. The tollbooths remained in place and are the only surviving examples of bridge tollbooths in London. Nicknamed "The Trembling Lady" because of its tendency to vibrate when large numbers of people walked over it,

693-521: A thousand signatures in support, but was vigorously attacked by the British Road Federation , who derided the apparent evidence of public support for the scheme as "sending a lot of students around to council flats [where] most people will sign anything without knowing what it is all about". A public inquiry of 1974 recommended that the bridge remain open to avoid congestion on neighbouring bridges, and it remained open to traffic with

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756-644: A year, at a cost of £70,000 (about £8.17 million in 2024). In the event, the project ran for over three years, and the final bill came to £200,000 (about £22.4 million in 2024). It was intended to open the bridge and the Chelsea Embankment in a joint ceremony in 1874, but the Albert Bridge Company was keen to start recouping the substantially higher than expected costs, and the bridge opened without any formal ceremony on 23 August 1873, almost ten years after its authorisation. As

819-679: Is a cable-stayed bridge with a more substantial bridge deck that, being stiffer and stronger, allows the cables to be omitted close to the tower and for the towers to be lower in proportion to the span. The first extradosed bridges were the Ganter Bridge and Sunniberg Bridge in Switzerland. The first extradosed bridge in the United States, the Pearl Harbor Memorial Bridge was built to carry I-95 across

882-476: Is one of only two Thames road bridges in central London never to have been replaced (the other is Tower Bridge ). The strengthening work carried out by Bazalgette and the Greater London Council did not prevent further deterioration of the bridge's structure. A series of increasingly strict traffic control measures have been introduced to limit its use and thus prolong its life. As a result, it is

945-507: Is optimal for spans longer than cantilever bridges and shorter than suspension bridges. This is the range within which cantilever bridges would rapidly grow heavier, and suspension bridge cabling would be more costly. Cable-stayed bridges were being designed and constructed by the late 16th century, and the form found wide use in the late 19th century. Early examples, including the Brooklyn Bridge , often combined features from both

1008-485: The Architectural Review scheme once legal matters had been dealt with. The Royal Automobile Club campaigned vigorously against the pedestrianisation proposal. A publicity campaign fronted by actress Diana Dors in favour of reopening the bridge was launched, whilst a lobbying group of local residents led by poet Robert Graves campaigned in support of the GLC's plan. Graves's campaign collected over

1071-419: The Chenab Bridge was rejected and a new cable-stayed design was approved. It is India's first cable-stayed railway bridge. It is built by Hindustan Construction Company , and is widely regarded as an engineering marvel of modern India. The Anji Khad bridge was initially proposed to be an arch bridge. It was designed as a long steel arches span bridge. Its total length was to be 473 m (1,552 ft), with

1134-473: The Greater London Council (GLC) sought and obtained consent to carry out strengthening work. In April 1972 the bridge was closed for the work to be carried out. The GLC's solution entailed adding two concrete piers in the middle of the river to support the central span and thus transform the bridge's central section into a beam bridge . The bridge's main girder was also strengthened, and

1197-562: The Metropolitan Board of Works to buy all London bridges between Hammersmith and Waterloo bridges and free them from tolls. In 1879, Albert Bridge, which had cost £200,000 to build, was bought by the Board of Works along with Battersea Bridge for a combined price of £170,000 (about £21.8 million in 2024). The tolls were removed from both bridges on 24 May 1879, but the octagonal tollbooths were left in place, and today are

1260-608: The Penobscot Narrows Bridge , completed in 2006, and the Veterans' Glass City Skyway , completed in 2007. A self-anchored suspension bridge has some similarity in principle to the cable-stayed type in that tension forces that prevent the deck from dropping are converted into compression forces vertically in the tower and horizontally along the deck structure. It is also related to the suspension bridge in having arcuate main cables with suspender cables, although

1323-539: The River Thames about 3 miles (5 km) west of Westminster , and the rich farming village of Battersea , facing Chelsea on the south bank, were linked by the modest wooden Battersea Bridge in 1771. In 1842 the Commission of Woods, Forests, and Land Revenues recommended the construction of an embankment at Chelsea to free land for development, and proposed a new bridge downstream of Battersea Bridge, and

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1386-531: The Royal Borough of Kensington and Chelsea provided 25% of the cost and the other 75% was provided by Transport for London . It re-opened on 2 December 2011, when two dogs named Prince and Albert, from nearby Battersea Dogs and Cats Home , walked across the bridge to open it officially. All of the Grade II features were retained. Its distinctive and striking current appearance has led to its use as

1449-486: The Theodor Heuss Bridge (1958). However, this involves substantial erection costs, and more modern structures tend to use many more cables to ensure greater economy. Cable-stayed bridges may appear to be similar to suspension bridges , but they are quite different in principle and construction. In suspension bridges, large main cables (normally two) hang between the towers and are anchored at each end to

1512-601: The Vltava in Prague to the same design as that intended for the Albert Bridge. In 1869, the time allowed by the 1864 Act to build the bridge expired. Delays caused by the Chelsea Embankment project meant that work on the bridge had not even begun, and a new Act of Parliament was required to extend the time limit. Construction finally got underway in 1870, and it was anticipated that the bridge would be completed in about

1575-451: The live load of traffic crossing the bridge. The tension on the main cables is transferred to the ground at the anchorages and by downwards compression on the towers. In cable-stayed bridges, the towers are the primary load-bearing structures that transmit the bridge loads to the ground. A cantilever approach is often used to support the bridge deck near the towers, but lengths further from them are supported by cables running directly to

1638-657: The 20th century. In 1926 the Royal Commission on Cross-River Traffic recommended demolition and rebuilding of the bridge to carry four lanes of traffic, but the plan was not carried out because of a shortage of funds in the Great Depression . It continued to deteriorate, and in 1935 the weight limit was reduced to two tons. Because of its ongoing structural weaknesses, in 1957 the London County Council proposed replacing Albert Bridge with

1701-507: The Donzère-Mondragon canal at Pierrelatte is one of the first of the modern type, but had little influence on later development. The steel-decked Strömsund Bridge designed by Franz Dischinger (1955) is, therefore, more often cited as the first modern cable-stayed bridge. Other key pioneers included Fabrizio de Miranda , Riccardo Morandi , and Fritz Leonhardt . Early bridges from this period used very few stay cables, as in

1764-636: The Quinnipiac River in New Haven, Connecticut, opening in June 2012. A cradle system carries the strands within the stays from the bridge deck to bridge deck, as a continuous element, eliminating anchorages in the pylons. Each epoxy-coated steel strand is carried inside the cradle in a one-inch (2.54 cm) steel tube. Each strand acts independently, allowing for removal, inspection, and replacement of individual strands. The first two such bridges are

1827-409: The bridge deck. A distinctive feature are the cables or stays , which run directly from the tower to the deck, normally forming a fan-like pattern or a series of parallel lines. This is in contrast to the modern suspension bridge , where the cables supporting the deck are suspended vertically from the main cable, anchored at both ends of the bridge and running between the towers. The cable-stayed bridge

1890-469: The bridge has signs at its entrances that warn troops to break step whilst crossing the bridge. Incorporating a roadway only 27 feet (8.2 m) wide, and with serious structural weaknesses, the bridge was ill-equipped to cope with the advent of the motor vehicle during the 20th century. Despite many calls for its demolition or pedestrianisation, Albert Bridge has remained open to vehicles throughout its existence, other than for brief spells during repairs. It

1953-514: The bridge. In 1993 the innovative use of long-life low-energy lighting was commended by Mary Archer , at the time Chairwoman of the National Energy Foundation . Except for Tower Bridge , built in 1894, Albert Bridge is the only Thames road bridge in central London never to have been replaced. Intended as a temporary measure to be removed in 1978, the concrete central piers remain in place, and although in 1974 its lifespan

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2016-565: The bridge; Although the barracks closed in 2008, the warning signs are still in place. Albert Bridge was catastrophically unsuccessful financially. By the time the new bridge opened, the Albert Bridge Company had been paying compensation to the Battersea Bridge Company for nine years, and on completion of the new bridge became liable for the costs of repairing the by then dilapidated and dangerous structure. The cost of subsidising Battersea Bridge drained funds intended for

2079-420: The building of wide approach roads, making the bridge difficult to reach. It was located slightly further from central London than neighbouring Victoria (Chelsea) Bridge, and demand for the new bridge was less than expected. In the first nine months of its operation £2,085 (about £245,000 in 2024) were taken in tolls. The Metropolis Toll Bridges Act 1877 ( 40 & 41 Vict. c. xcix) was passed, which allowed

2142-405: The cable-stayed and suspension designs. Cable-stayed designs fell from favor in the early 20th century as larger gaps were bridged using pure suspension designs, and shorter ones using various systems built of reinforced concrete . It returned to prominence in the later 20th century when the combination of new materials, larger construction machinery, and the need to replace older bridges all lowered

2205-562: The cable-stayed bridge are balanced so that the supporting towers do not tend to tilt or slide and so must only resist horizontal forces from the live loads. The following are key advantages of the cable-stayed form: There are four major classes of rigging on cable-stayed bridges: mono , harp , fan, and star . There are also seven main arrangements for support columns: single , double , portal , A-shaped , H-shaped , inverted Y and M-shaped . The last three are hybrid arrangements that combine two arrangements into one. Depending on

2268-410: The carriageway and pavement decking were replaced. New steel structures were added to strengthen the bridge. All the lightbulbs were changed to more energy-efficient ones. The tollbooths were refurbished. All twelve layers of paint were stripped down until the bare metal was exposed, which was repaired and treated before three new coats of paint were added. The whole project cost £7.2 million of which

2331-693: The combination of technologies created a stiffer bridge. John A. Roebling took particular advantage of this to limit deformations due to railway loads in the Niagara Falls Suspension Bridge . The earliest known surviving example of a true cable-stayed bridge in the United States is E.E. Runyon's largely intact steel or iron Bluff Dale Suspension bridge with wooden stringers and decking in Bluff Dale, Texas (1890), or his weeks earlier but ruined Barton Creek Bridge between Huckabay, Texas and Gordon, Texas (1889 or 1890). In

2394-572: The design, the columns may be vertical or angled or curved relative to the bridge deck. A side-spar cable-stayed bridge uses a central tower supported only on one side. This design allows the construction of a curved bridge. Far more radical in its structure, the Puente del Alamillo (1992) uses a single cantilever spar on one side of the span, with cables on one side only to support the bridge deck. Unlike other cable-stayed types, this bridge exerts considerable overturning force upon its foundation and

2457-471: The four octagonal support columns. Although authorised in 1864, work on the bridge was delayed by negotiations over the proposed Chelsea Embankment , since the bridge's design could not be completed until the exact layout of the new roads being built on the north bank of the river had been agreed. While plans for the Chelsea Embankment were debated, Ordish built the Franz Joseph Bridge over

2520-436: The ground. This can be difficult to implement when ground conditions are poor. The main cables, which are free to move on bearings in the towers, bear the load of the bridge deck. Before the deck is installed, the cables are under tension from their own weight. Along the main cables smaller cables or rods connect to the bridge deck, which is lifted in sections. As this is done, the tension in the cables increases, as it does with

2583-594: The interim. Rowland Mason Ordish was appointed to design the new bridge. Ordish was a leading architectural engineer who had worked on the Royal Albert Hall , St Pancras railway station , the Crystal Palace and Holborn Viaduct . The bridge was built using the Ordish–Lefeuvre system , an early form of cable-stayed bridge design which Ordish had patented in 1858. Ordish's design resembled

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2646-411: The law demanded, the Albert Bridge Company then bought Battersea Bridge. Ordish's bridge was 41 feet (12 m) wide and 710 feet (220 m) long, with a 384-foot-9-inch (117.27 m) central span. The deck was supported by 32 rigid steel rods suspended from four octagonal cast iron towers, with the towers resting on cast iron piers. The four piers were cast at Battersea and floated down

2709-466: The little-used Southwark Bridge . The bridge was closed to motor vehicles on 15 February 2010 for refurbishment and strengthening. It was originally expected to remain closed for approximately 18 months, but after the condition of the bridge was found to be worse than expected, it was closed for 22 months. All of the timber in the decking as well as the footway that had rotted away were replaced, with additional timber added for strengthening. Surfaces at

2772-529: The nickname of "The Trembling Lady" because of its tendency to vibrate, particularly when used by troops from the nearby Chelsea Barracks . Concerns about the risks of mechanical resonance effects on suspension bridges, following the 1831 collapse of the Broughton Suspension Bridge and the 1850 collapse of Angers Bridge , led to notices being placed at the entrances warning troops to break step (i.e. not to march in rhythm) when crossing

2835-420: The north bank to Battersea on the south. Designed and built by Rowland Mason Ordish in 1873 as an Ordish–Lefeuvre system modified cable-stayed bridge , it proved to be structurally unsound, so between 1884 and 1887 Sir Joseph Bazalgette incorporated some of the design elements of a suspension bridge . In 1973 the Greater London Council added two concrete piers , which transformed the central span into

2898-399: The only surviving bridge tollbooths in London. In 1884 the Board of Works' Chief Engineer Sir Joseph Bazalgette conducted an inspection of the bridge and found that the iron rods were already showing serious signs of corrosion. Over the next three years the staying rods were augmented with steel chains, giving it an appearance more closely resembling a conventional suspension bridge, and

2961-547: The pylons; Millau Viaduct and Mezcala Bridge , where twin-legged towers are used; and General Rafael Urdaneta Bridge , where very stiff multi-legged frame towers were adopted. A similar situation with a suspension bridge is found at both the Great Seto Bridge and San Francisco–Oakland Bay Bridge where additional anchorage piers are required after every set of three suspension spans – this solution can also be adapted for cable-stayed bridges. An extradosed bridge

3024-517: The relative price of these designs. Cable-stayed bridges date back to 1595, where designs were found in Machinae Novae , a book by Croatian - Venetian inventor Fausto Veranzio . Many early suspension bridges were cable-stayed construction, including the 1817 footbridge Dryburgh Abbey Bridge , James Dredge 's patented Victoria Bridge, Bath (1836), and the later Albert Bridge (1872) and Brooklyn Bridge (1883). Their designers found that

3087-422: The repairs were unavailable. As well as structural damage caused by traffic, the timbers underpinning the deck were being seriously rotted by the urine of dogs crossing to and from nearby Battersea Park . With multiple measures in place to reduce traffic flow and prolong the life of the bridge, in 2009 it carried approximately 19,000 vehicles per day, the lowest usage of any Thames road bridge in London other than

3150-574: The replacement of the latter by a more modern structure. Work on the Victoria Bridge (later renamed Chelsea Bridge), a short distance downstream of Battersea Bridge, began in 1851 and was completed in 1858, with work on the Chelsea Embankment beginning in 1862. Meanwhile, the proposal to demolish Battersea Bridge was abandoned. The wooden Battersea Bridge had become dilapidated by the mid-19th century. It had grown unpopular and

3213-418: The river into position, at which time they were filled with concrete; at the time they were the largest castings ever made. Unlike most other suspension bridges of the time, the towers were positioned outside the bridge to avoid causing any obstruction to the roadway. At each entrance was a pair of tollbooths with a bar between them, to prevent people entering the bridge without paying. The bridge acquired

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3276-411: The second-least busy Thames road bridge in London; only Southwark Bridge carries less traffic. In 1992, Albert Bridge was rewired and painted in an unusual colour scheme designed to make it more conspicuous in poor visibility, and avoid being damaged by ships. At night it is illuminated by 4,000 LEDs , adding to its status as a landmark. The historic industrial town of Chelsea on the north bank of

3339-480: The self-anchored type lacks the heavy cable anchorages of the ordinary suspension bridge. Unlike either a cable-stayed bridge or a suspension bridge, the self-anchored suspension bridge must be supported by falsework during construction and so it is more expensive to construct. Albert Bridge, London Albert Bridge is a road bridge over the River Thames connecting Chelsea in Central London on

3402-512: The spar must resist the bending caused by the cables, as the cable forces are not balanced by opposing cables. The spar of this particular bridge forms the gnomon of a large garden sundial . Related bridges by the architect Santiago Calatrava include the Puente de la Mujer (2001), Sundial Bridge (2004), Chords Bridge (2008), and Assut de l'Or Bridge (2008). Cable-stayed bridges with more than three spans involve significantly more challenging designs than do 2-span or 3-span structures. In

3465-468: The steepness of the sides of the gorge made an arch bridge impractical. In October 2016, Indian Railways decided to build a cable-stayed bridge at Anji Khad. The completed bridge will connect tunnels T2 and T3 on the Katra and Reasi sides respectively. It has a 290 meter main span at a height of 196 meters. The length of bridge’s main section is 473.25 meters out of a total length of over 1,300 meters, with

3528-497: The tidal flow and 2-ton weight limit in place. In 1990, the tidal flow system was abandoned and Albert Bridge was converted back to two-way traffic. A traffic island was installed on the south end of the bridge to prevent larger vehicles from using it. In the early years of the 21st century the Chelsea area experienced a growth in the popularity of large four-wheel drive cars (so-called Chelsea tractors ), many of which were over

3591-411: The towers. That has the disadvantage, unlike for the suspension bridge, that the cables pull to the sides as opposed to directly up, which requires the bridge deck to be stronger to resist the resulting horizontal compression loads, but it has the advantage of not requiring firm anchorages to resist the horizontal pull of the main cables of the suspension bridge. By design, all static horizontal forces of

3654-529: The twentieth century, early examples of cable-stayed bridges included A. Gisclard's unusual Cassagnes bridge (1899), in which the horizontal part of the cable forces is balanced by a separate horizontal tie cable, preventing significant compression in the deck, and G. Leinekugel le Coq's bridge at Lézardrieux in Brittany (1924). Eduardo Torroja designed a cable-stayed aqueduct at Tempul in 1926. Albert Caquot 's 1952 concrete-decked cable-stayed bridge over

3717-405: The two-ton weight limit; it was estimated that one third of all vehicles using the bridge were over the weight limit. In July 2006 the 27-foot (8.2 m) wide roadway was narrowed to a single lane in each direction to reduce the load. Red and white plastic barriers have been erected along the roadway in an effort to protect the structure from damage by cars. Between 1905 and 1981, Albert Bridge

3780-425: Was considered unsafe. The newer Victoria Bridge, meanwhile, suffered severe congestion. In 1860, Prince Albert suggested that a new tollbridge built between the two existing bridges would be profitable, and in the early 1860s, the Albert Bridge Company was formed with the aim of building this new crossing. A proposal put forward in 1863 was blocked by strong opposition from the operators of Battersea Bridge, which

3843-406: Was estimated at a maximum of 30 years, the bridge is still standing and operational. The Albert Bridge was protected as a Grade II* listed structure in 1975, granting it protection against significant alteration without consultation. It continues to deteriorate. Although proposals have been drawn up by Kensington and Chelsea London Borough Council to repair and rescue it, by March 2008 funds for

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3906-500: Was less than 500 yards (460 m) from the proposed site of the new bridge and whose owners were consequently concerned over potential loss of custom. A compromise was reached, and in 1864 a new Act of Parliament was passed, authorising the new bridge on condition that it was completed within five years. The Act compelled the Albert Bridge Company to purchase Battersea Bridge once the new bridge opened, and to compensate its owners by paying them £3,000 per annum (about £373,000 in 2024) in

3969-415: Was painted uniformly green; in 1981 it was repainted yellow. In 1992 it was redecorated and rewired. This has added to its status as a London landmark. The bridge is painted in pink, blue and green to increase visibility in fog and murky light and thus to reduce the risks of ships colliding with the fragile structure during the day. At night, a network of 4,000 low-voltage tungsten-halogen bulbs illuminated

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