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Yarraford Rail Bridge Over Beardy Waters
The Yarraford Rail Bridge is a heritage-listed closed railway bridge that carried the Main Northern Line across Beardy Waters, situated from Central station, near Glen Innes, in the Glen Innes Severn local government area of New South Wales, Australia. The bridge was designed by John Whitton in his capacity as Engineer-in-Chief for Railways and built in 1886. It is also known as Beardy River Railway Viaduct. The property is owned by Transport Asset Holding Entity, an agency of the Government of New South Wales. It was added to the New South Wales State Heritage Register on 2 April 1999. History When John Whitton, Engineer-in-Chief for Railways 1856-1890, extended the Main North Railway from Muswellbrook to Glen Innes between 1870-1884 it climbed through the highest parts of the Great Dividing Range into the New England Region. Gradients were steep, curves were sharp, there was heavy earthworks and some major iron lattice bridges. It was expensive railway construction. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Main Northern Railway Line, New South Wales
The Main North Line (also known as the Great Northern Railway) is a major railway in New South Wales, Australia. It runs through the Central Coast, Hunter and New England regions. The line was the original main line between Sydney and Brisbane, however this required a change of gauge at Wallangarra. As of 1988, the line closed progressively north of Armidale with services gradually withdrawn till 2004, with the main route between Sydney and Brisbane now the North Coast line. Description of route The line starts as a branch off the Main Suburban line at Strathfield in Sydney. The line heads north as a quadruple track electrified line to Rhodes, crossing the John Whitton Bridge over the Parramatta River as a double track line. At West Ryde the line again expands out to four tracks through to Epping. The line is then largely double track through the northern suburbs of Sydney, crossing the Hawkesbury River Railway Bridge, before passing through the Central Coast. At Fass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Severn River (New South Wales)
The Severn River , a perennial river that forms part of the Border Rivers group, is part of the Macintyre catchment of the Murray–Darling basin, located in the Northern Tablelands and North West Slopes regions of New South Wales, Australia. Course and features The river rises on the western slopes of the Great Dividing Range, north of Glen Innes and flows generally northwest, joined by eleven tributaries, including Beardy Waters, and impounded by Lake Pindari, near Ashford. The river reaches its confluence with the Macintyre River, north of Wallangra; descending over its course. Recreation The Severn River flows through Kwaimbal National Park. A rare plant, the Severn River heath-myrtle is restricted to the Severn River Nature Reserve and an adjacent property, about north-west of Glen Innes. Excellent fishing can be found along the river and is regularly stocked with native fingerlings, Murray Cod and Golden Perch. The Severn River Rail Bridge on the now disuse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trusses
A truss is an assembly of ''members'' such as beams, connected by ''nodes'', that creates a rigid structure. In engineering, a truss is a structure that "consists of two-force members only, where the members are organized so that the assemblage as a whole behaves as a single object". A "two-force member" is a structural component where force is applied to only two points. Although this rigorous definition allows the members to have any shape connected in any stable configuration, trusses typically comprise five or more triangular units constructed with straight members whose ends are connected at joints referred to as ''nodes''. In this typical context, external forces and reactions to those forces are considered to act only at the nodes and result in forces in the members that are either tensile or compressive. For straight members, moments (torques) are explicitly excluded because, and only because, all the joints in a truss are treated as revolutes, as is necessary for t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Truss
A truss is an assembly of ''members'' such as beams, connected by ''nodes'', that creates a rigid structure. In engineering, a truss is a structure that "consists of two-force members only, where the members are organized so that the assemblage as a whole behaves as a single object". A "two-force member" is a structural component where force is applied to only two points. Although this rigorous definition allows the members to have any shape connected in any stable configuration, trusses typically comprise five or more triangular units constructed with straight members whose ends are connected at joints referred to as ''nodes''. In this typical context, external forces and reactions to those forces are considered to act only at the nodes and result in forces in the members that are either tensile or compressive. For straight members, moments (torques) are explicitly excluded because, and only because, all the joints in a truss are treated as revolutes, as is necessary for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Span (architecture)
Span is the distance between two intermediate supports for a structure, e.g. a beam (structure), beam or a bridge. A span can be closed by a solid beam or by a rope. The first kind is used for bridges, the second one for power lines, overhead telecommunication lines, some type of Antenna (radio), antennas or for aerial tramways. The span is a significant factor in finding the strength and size of a beam as it determines the maximum bending moment and Deflection (engineering), deflection. The maximum bending moment M_ and deflection \delta_in the pictured beam is found using: :M_ = \frac :\delta_ = \frac = \frac where :q = Uniformly distributed load :L = Length of the beam between two supports (span) :E = Modulus of elasticity :I = Area moment of inertia Note that the maximum bending moment and deflection occur midway between the two supports. From this it follows that if the span is doubled, the maximum moment (and with it the tensile stress, stress) will quadruple, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bombala Railway Line
The Bombala railway line is a branch railway line in the south of New South Wales, Australia. The northern part of it forms part of the main line from Sydney to Canberra, but the southern part is closed. It branches off the Main South line at Joppa Junction, south of Goulburn. The line is used by NSW TrainLink Xplorer services running between Sydney Central and Canberra station. History The line was opened in stages to Tarago (January 1884), Bungendore (March 1885), Queanbeyan (September 1887), Michelago (December 1887), Cooma (May 1889), Nimmitabel (April 1912) and Bombala (November 1921). Queanbeyan The section of the line, between Bungendore and Queanbeyan, was the most challenging to construct, with three tunnels, a major sideling embankment along the Molonglo River gorge (also known as 'Pine Valley'), and two major bridges, across the Molonglo and Queanbeyan Rivers. The construction contract for the line from Bungendore to Michelago was awarded to Johnstone and Co. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bredbo River Railway Bridge, Bredbo
The Bredbo River railway bridge is a heritage-listed former railway bridge carrying the Bombala railway line over the Bredbo River at Bredbo in the Snowy Monaro Regional Council local government area of New South Wales, Australia. It was designed by John Whitton in his capacity as Engineer-in-Chief for Railways and built from 1881 to 1889. It is also known as the Bredbo Rail Bridge and the Bredbo River Railway Viaduct. The property is owned by RailCorp, an agency of the Government of New South Wales. It was added to the New South Wales State Heritage Register on 2 April 1999. On 1 December 2020, changes were made to exemptions relating to the bridge's heritage status. History The railway was extended from Queanbeyan to Cooma in 1887-89. At that time, the Engineer-in-Chief for Railways, John Whitton, was under government pressure to reduce construction costs. One common method was to build timber bridges, mostly ballast top timber beam bridges. However, for two major waterw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ingalara Creek Railway Bridge, Michelago
The Ingalara Creek railway bridge is a heritage-listed former railway bridge that carried the Bombala railway line across Ingalara Creek at Michelago in the Snowy Monaro Regional Council local government area of New South Wales, Australia. It was designed by John Whitton in his capacity as Engineer-in-Chief for Railways and built in 1889. It is also known as the Michelago Rail Bridge over Ingalara Creek and the Ingalara Creek Railway Viaduct. The property is owned by Transport Asset Holding Entity, an agency of the Government of New South Wales. It was added to the New South Wales State Heritage Register on 2 April 1999. On 1 December 2020, changes were made to exemptions relating to the bridge's heritage status. History The railway was extended from Queanbeyan to Cooma in 1887–89. At that time, the Engineer-in-Chief for Railways, John Whitton, was under government pressure to reduce construction costs. One common method was to build timber bridges, mostly ballast top ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queensland
) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_date = Colony of Queensland , established_title2 = Separation from New South Wales , established_date2 = 6 June 1859 , established_title3 = Federation , established_date3 = 1 January 1901 , named_for = Queen Victoria , demonym = , capital = Brisbane , largest_city = capital , coordinates = , admin_center_type = Administration , admin_center = 77 local government areas , leader_title1 = Monarch , leader_name1 = Charles III , leader_title2 = Governor , leader_name2 = Jeannette Young , leader_title3 = Premier , leader_name3 = Annastacia Palaszczuk ( ALP) , legislature = Parliament of Queensland , judiciary = Supreme Court of Queensland , national_representation = Parliament of Australia , national_representation_type ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wallangarra, Queensland
Wallangarra is a rural town and locality in the Southern Downs Region, Queensland, Australia on the border with New South Wales. In the , the locality of Wallangarra had a population of 468 people. It is the third-most southerly town in Queensland, south west of Brisbane. Wallangarra is on the Queensland side of the border and Jennings is on the New South Wales side. Geography Wallangarra lies in a valley between two ranges of mountains, which are branches of the Great Dividing Range. It is 878 m above sea level. There is a gap between the more Westerly range at Wyberba, about five kilometres north of Wallangarra. This gap has made Wallangarra the major inland border crossing for the New England Highway and what was the first railway line between Brisbane and Sydney. It is situated on the northern periphery of the New England Peppermint Grassy Woodland. History In 1885, the Queensland Government announced that a town would be formed where the railway line between Queens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cornwall Railway Viaducts
The Cornwall Railway company constructed a railway line between Plymouth and Truro in the United Kingdom, opening in 1859, and extended it to Falmouth in 1863. The topography of Cornwall is such that the route, which is generally east–west, cuts across numerous deep river valleys that generally run north–south. At the time of construction of the line, money was in short supply due to the collapse in confidence following the railway mania, and the company sought ways of reducing expenditure. On the advice of the Victorian railway engineer Isambard Kingdom Brunel, they constructed the river crossings in the form of wooden viaducts, 42 in total, consisting of timber deck spans supported by fans of timber bracing built on masonry piers. This unusual method of construction substantially reduced the first cost of construction compared to an all-masonry structure, but at the cost of more expensive maintenance. Replacement of the timber viaducts by all-masonry structures began in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
