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Truss Arch Bridge
A truss arch bridge combines the elements of the truss bridge and the arch bridge. The actual resolution of forces will depend upon the bridge' design. If no horizontal thrusting forces are generated, this becomes an arch-shaped truss which is essentially a bent beam – see moon bridge for an example. If horizontal thrust is generated but the apex of the arch is a pin joint, this is termed as a three-hinged arch. If no hinge exists at the apex, it will normally be a two-hinged arch. In ''The Iron Bridge'' shown below, the structure of each frame emulates the kind of structure that previously had been made of wood. Such a wood structure uses closely fitted beams pinned together, so the members within the frames are not free to move relative to one another, as they are in a pin-jointed truss structure that allows rotation at the pin joint. Such rigid structures (which impose bending stresses upon the elements) were further developed in the 20th century as the Vierendeel truss. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New River Gorge Bridge
The New River Gorge Bridge is a steel arch bridge long over the New River Gorge near Fayetteville, West Virginia, in the Appalachian Mountains of the eastern United States. With an arch long, the New River Gorge Bridge was the world's longest single-span arch bridge for 26 years; it is now the fifth longest and the longest outside of China. Part of U.S. Route 19, its construction marked the completion of Corridor L of the Appalachian Development Highway System. An average of 16,200 motor vehicles cross the bridge each day. The roadway of the New River Gorge Bridge is above the New River, making the bridge one of the highest vehicular bridges in the world; it is the third highest in the United States. When completed in 1977, it was the world's highest bridge carrying a regular roadway, a title it held until the 2001 opening of the Liuguanghe Bridge in China. Because of its height, the bridge has attracted daredevils since its construction. It is now the centerpiece o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Iron Bridge
The Iron Bridge is a cast iron arch bridge that crosses the River Severn in Shropshire, England. Opened in 1781, it was the first major bridge in the world to be made of cast iron. Its success inspired the widespread use of cast iron as a structural material, and today the bridge is celebrated as a symbol of the Industrial Revolution. The geography of the deep Ironbridge Gorge, formed by glacial action during the last ice age, meant that there are industrially useful deposits of coal, iron ore, limestone and fire clay present near the surface where they are readily mined, but also that it was difficult to build a bridge across the river at this location. To cope with the instability of the banks and the need to maintain a navigable channel in the river, a single span iron bridge was proposed by Thomas Farnolls Pritchard. After initial uncertainty about the use of iron, construction took place over two years, with Abraham Darby III responsible for the ironwork. The bridge cro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Navajo Bridge
Navajo Bridge is the name of twin steel spandrel arch bridges that cross the Colorado River in the Grand Canyon National Park (near Lees Ferry) in northern Coconino County, Arizona, United States. The newer of the two spans carries vehicular traffic on U.S. Route 89A (US 89A) over Marble Canyon between Bitter Springs and Jacob Lake, allowing travel into a remote Arizona Strip region north of the Colorado River including the North Rim of Grand Canyon National Park. Prior to completion of the first Navajo Bridge, one of the only Colorado River crossings between Arizona and Utah was located about upstream from the bridge site, at the mouth of Glen Canyon where Lees Ferry service had operated since 1873. The ferry site had been chosen as the only relatively easy access to the river for both northbound and southbound travelers. By the 1920s, automobile traffic began using the ferry, though it was not considered a safe and reliable crossing due to adverse weather and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
I-35W Mississippi River Bridge
The I-35W Mississippi River bridge (officially known as Bridge 9340) was an eight-lane, steel truss arch bridge that carried Interstate 35W across the Mississippi River one-half mile (875 m) downstream from the Saint Anthony Falls in Minneapolis, Minnesota, United States. The bridge opened in 1967, and was Minnesota's third busiest, carrying 140,000 vehicles daily. After only 39 years in service, it experienced a catastrophic failure during the evening rush hour on August 1, 2007, killing 13 people and injuring 145. The National Transportation Safety Board (NTSB) cited a design flaw as the likely cause of the collapse, noting that an excessively thin gusset plate ripped along a line of rivets. Additional weight on the bridge at the time of failure was also cited by the NTSB as a contributing factor. Help came immediately from mutual aid in the seven-county Minneapolis–Saint Paul metropolitan area and emergency response personnel, charities, and volunteers. Within a few days ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hurricane Deck Bridge
The Hurricane Deck Bridge was a truss arch bridge located on Lake of the Ozarks in the unincorporated community of Hurricane Deck in Camden County, Missouri. It carried Missouri Route 5 across the Osage Arm of the lake. It was perhaps one of the most distinctive features on the lake. It was the only truss-type bridge remaining on the lake. The American Institute of Steel Construction The American Institute of Steel Construction (AISC) is a not-for-profit technical institute and trade association for the use of structural steel in the construction industry of the United States. AISC publishes the Steel Construction Manual, a ... selected the bridge as the most beautiful steel span built in 1936. It was about half a mile long. The bridge was replaced in 2013. History Construction for the bridge began in 1934 and was completed in 1936. The bridge was one of three bridges on the lake constructed with the truss support below the deck enabling passengers to see the lake clearly. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gustave Eiffel
Alexandre Gustave Eiffel ( , ; Bonickhausen dit Eiffel; 15 December 1832 – 27 December 1923) was a French civil engineer. A graduate of École Centrale des Arts et Manufactures, he made his name with various bridges for the French railway network, most famously the Garabit Viaduct. He is best known for the world-famous Eiffel Tower, designed by his company and built for the Exposition Universelle (1889), 1889 Universal Exposition in Paris, and his contribution to building the Statue of Liberty in New York. After his retirement from engineering, Eiffel focused on research into meteorology and aerodynamics, making significant contributions in both fields. Early life Alexandre Gustave Eiffel was born in France, in the Côte-d'Or, the first child of Catherine-Mélanie (née Moneuse) and Alexandre Bonickhausen dit Eiffel. He was a descendant of Marguerite Frédérique (née Lideriz) and Jean-René Bönickhausen, who had emigrated from the Germany, German town of Marmagen and set ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maria Pia Bridge
Maria Pia Bridge (in Portuguese ''Ponte de D. Maria Pia'', commonly known as ''Ponte de Dona Maria Pia'') is a railway bridge built in 1877 and attributed to Gustave Eiffel. It is situated between the Portuguese Northern municipalities of Porto and Vila Nova de Gaia. The double-hinged, crescent arch bridge is made of wrought iron and spans , over the Douro River. It is part of the Linha Norte system of the national railway. At the time of its construction, it was the longest single-arch span in the world. It is no longer used for rail transport, having been replaced by Ponte de São João (or St. John's Bridge) in 1991. It is often confused with the similar D. Luís Bridge, which was built nine years later and is located to the west, although the D. Luis Bridge has two decks instead of one. History In 1875, the Royal Portuguese Railway Company announced a competition for a bridge to carry the Lisbon to Porto railway across the river Douro. This was very technically deman ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niagara River
The Niagara River ( ) flows north from Lake Erie to Lake Ontario, forming part of the border between Ontario, Canada, to the west, and New York, United States, to the east. The origin of the river's name is debated. Iroquoian scholar Bruce Trigger suggests it is derived from a branch of the local Neutral Confederacy, referred to as the ''Niagagarega'' people on several late- 17th-century French maps. George R. Stewart posits that it comes from an Iroquois town named ''Ongniaahra'', meaning "point of land cut in two." The river, occasionally described as a strait, is approximately long and includes Niagara Falls. Over the past 12,000 years, the falls have moved roughly upstream from the leading edge of the Niagara Escarpment, creating a gorge below the falls. Today, the diversion of the river for electricity generation has significantly slowed the rate of erosion. The total elevation drop along the river is . The Niagara Gorge, downstream from the falls, includes the N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honeymoon Bridge (Niagara Falls)
The Upper Steel Arch Bridge, also known as the Honeymoon Bridge or Fallsview Bridge (less frequently Falls View Bridge), was an international bridge which crossed the Niagara River, connecting Niagara Falls, Ontario, Canada, with Niagara Falls, New York, United States. It was located about upriver of the present-day Rainbow Bridge. It collapsed in 1938. History Built in 1897–98 by the Pencoyd Bridge Company, the Upper Steel Arch Bridge was located closer to the American Falls than the bridge that it replaced. When completed, the bridge became the largest steel arch bridge in the world. Its features included a double track for trolley cars and room for carriages and pedestrians. The bridge had to be constantly protected from ice bridges that formed over the river every winter. In January 1899 a huge ice bridge threatened the bridge when ice piled around its abutments due to their close proximity to the river's surface. The bridge was subsequently fortified with a tall ston ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canadian Pacific Railway
The Canadian Pacific Railway () , also known simply as CPR or Canadian Pacific and formerly as CP Rail (1968–1996), is a Canadian Class I railway incorporated in 1881. The railway is owned by Canadian Pacific Kansas City, Canadian Pacific Kansas City Limited, known until 2023 as Canadian Pacific Railway Limited, which began operations as legal owner in a corporate restructuring in 2001. The railway is headquartered in Calgary, Alberta. In 2023, the railway owned approximately of track in seven provinces of Canada and into the United States, stretching from Montreal to Vancouver, and as far north as Edmonton. Its rail network also served Minneapolis–St. Paul, Milwaukee, Detroit, Chicago, and Albany, New York, in the United States. The railway was first built between eastern Canada and British Columbia between 1875 and 1885 (connecting with Ottawa Valley and Georgian Bay area lines built earlier), fulfilling a commitment extended to British Columbia when it entered Canadia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stoney Creek Bridge
Stoney Creek Bridge is a Canadian Pacific Railway (CP) truss arch in southeastern British Columbia. This single-track crossing over Stoney Creek is in Glacier National Park, between Revelstoke and Golden. 1885 wooden bridge Stoney Creek was the highest timber bridge ever built, and at the time was the second highest bridge in North America with reference to deck height, rather than structural height. Deck height is the maximum vertical drop from the bridge deck to the ground or water surface below. However, various sources yield a range of height measurements for this wooden structure. The heights of the three towers were , , and . Recalculating the measurement using the planning and photographic evidence indicates an deck height. Howe trusses, measuring and , spanned the three piers. The confined workspace of the narrow gulch and the unstable rock foundation slowed construction. A flash flood, which buried the foundations of the high tower, cost two days of work. After ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catenary Arch
A catenary arch is a type of architectural arch that follows an inverted catenary curve. The catenary curve has been employed in buildings since ancient times. It forms an underlying principle to the overall system of vaults and buttresses in stone vaulted Gothic cathedrals and in Renaissance domes. It is not a parabolic arch, although the non- circumferential curves used in arch designs (parabola, catenary, and weighted catenary) look similar, and match at shallow profiles, so a catenary is often misclassified as a parabola (per Galileo, "the angingchain fits its parabola almost perfectly"). In history The 17th-century scientist Robert Hooke wrote: "''Ut pendet continuum flexile, sic stabit contiguum rigidum inversum''", or, "As hangs a flexible cable so, inverted, stand the touching pieces of an arch." A note written by Thomas Jefferson in 1788 reads, "I have lately received from Italy a treatise on the equilibrium of arches, by the Abbé Mascheroni. It appears to b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
