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Manhattan Bridge
The Manhattan Bridge is a suspension bridge that crosses the East River in New York City, connecting Lower Manhattan at Canal Street with Downtown Brooklyn at the Flatbush Avenue Extension. The main span is long, with the suspension cables being long. The bridge's total length is . It is one of four toll-free vehicular bridges connecting Manhattan Island to Long Island; the nearby Brooklyn Bridge is just slightly further downtown, while the Queensboro and Williamsburg bridges are to the north. The bridge was designed by Leon Moisseiff, built by The Phoenix Bridge Company, and opened to traffic on December 31, 1909. An innovative design, it was the first suspension bridge to employ Josef Melan's deflection theory for deck stiffening, resulting in the first use of a lightly-webbed weight-saving Warren truss for its construction. Considered the forerunner of modern suspension bridges, it served as the model for many of the record-breaking spans built in the first ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suspension Bridge
A suspension bridge is a type of bridge in which the deck is hung below suspension cables on vertical suspenders. The first modern examples of this type of bridge were built in the early 1800s. Simple suspension bridges, which lack vertical suspenders, have a long history in many mountainous parts of the world. Besides the bridge type most commonly called suspension bridges, covered in this article, there are other types of suspension bridges. The type covered here has cables suspended between towers, with vertical ''suspender cables'' that transfer the live and dead loads of the deck below, upon which traffic crosses. This arrangement allows the deck to be level or to arc upward for additional clearance. Like other suspension bridge types, this type often is constructed without the use of falsework. The suspension cables must be anchored at each end of the bridge, since any load applied to the bridge is transformed into a tension in these main cables. The main cables conti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roadway
A carriageway (British English) or roadway (North American English) consists of a width of road on which a vehicle is not restricted by any physical barriers or separation to move laterally. A carriageway generally consists of a number of traffic lanes together with any associated shoulder, but may be a sole lane in width (for example, a highway offramp). Description A single carriageway road (North American English: undivided highway) has one carriageway with 1, 2 or more lanes together with any associated footways (North American English: sidewalk) and road verges (North American English: tree belt). A dual carriageway road (North American English: divided highway) has two roadways separated by a central reservation (North American English: median). A local-express lane system (also called collector-express or collector-distributor) has more than two roadways, typically two sets of 'local lanes' or 'collector lanes' and also two sets of 'express lanes'. "Cars only" lanes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leon Moisseiff
Leon Solomon Moisseiff (November 10, 1872 – September 3, 1943) was a leading suspension bridge engineer in the United States in the 1920s and 1930s. He was awarded The Franklin Institute's Louis E. Levy Medal in 1933. His developments of the theory of suspension bridges are eclipsed by the dramatic failure of the Tacoma Narrows Suspension Bridge, his design, four months after its completion in 1940. The failure was filmed, and is shown to engineering students as a reminder of the possibility of failure, and to avoid hubris. Biography Moisseiff was born in Riga, Latvia (at the time, Russian Empire), to a Jewish family. |
Henry Hornbostel
Henry Hornbostel (August 15, 1867 – December 13, 1961) was an American architect and educator. Hornbostel designed more than 225 buildings, bridges, and monuments in the United States. Twenty-two of his designs are listed on the National Register of Historic Places, including the Oakland City Hall in Oakland, California and the Soldiers and Sailors Memorial Hall and Museum and University Club in Pittsburgh, Pennsylvania. About The son of Edward Hornbostel, a stockbroker, and Johanna Cassebeer, Hornbostel was born and raised in Brooklyn, New York. He trained in architecture at Columbia University (BA 1891) and the École des Beaux-Arts in Paris (1893–97). Hornbostel distinguished himself as a superb draftsman and renderer, earning in Paris the name, “l’homme perspectif.” He was a partner, over his career, in the New York firms of Howell, Stokes & Hornbostel; Wood, Palmer & Hornbostel; Palmer & Hornbostel; and Palmer, Hornbostel & Jones. He also practiced independent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gustav Lindenthal
Gustav Lindenthal (May 21, 1850 – July 31, 1935) was a civil engineer who designed the Queensboro and Hell Gate bridges in New York City, among other bridges. Lindenthal's work was greatly affected by his pursuit for perfection and his love of art. Having received little formal education and no degree in civil engineering, Lindenthal based his work on his prior experience and techniques used by other engineers of the time. Early life Lindenthal was born in Brünn, Austrian Empire, now Brno, Czech Republic in 1850. Lindenthal began to receive practical training in 1866 when he was employed as a mason and carpenter. At the age of 18, Lindenthal left his family to set out to make a life of his own in Vienna, Austria. Career When he arrived in Vienna he became an assistant in the engineering department for the Empress Elisabeth Railway of Austria. Two years later he joined the Union Construction Company, where he gained experience in building incline planes and railroads ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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