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Ōta River Bridge
The Ōta River Bridge (, also rendered in rōmaji as Otagawaohashi, also called Otagawa Bridge or Otagawa Ohashi Bridge) is a bridge on the Ōta River in Hiroshima, Japan. It is the southernmost of all the crossings of the Ōta River and carries Route 3 (the Hiroshima Minami Route) of the Hiroshima Expressway. Construction A decision to build a bridge as part of the expressway system was made in 2004. A design competition committee was formed in late 2008 and received entries from 18 Japanese and three international firms. The winning design by Kenichi Nishiyama of collaborating with Yoko Kabaki, Akiyoshi Nii, and Hitoshi Okamura, was selected in July, 2009. The bridge was built by Shimizu Corporation and finished in 2014. The bridge design had to comply with height restriction laws due to its proximity to Hiroshima–Nishi Airport. The bridge, a composite prestressed concrete continuous rigid frame box girder with steel arch bridge stiffener, won the Japan Society of Civil En ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hiroshima Expressway (urban Expressway)
The is a network of urban expressways serving the greater Hiroshima area in Japan. It is owned and managed by Hiroshima Expressway Public Corporation is the capital of Hiroshima Prefecture in Japan. , the city had an estimated population of 1,199,391. The gross domestic product (GDP) in Greater Hiroshima, Hiroshima Urban Employment Area, was US$61.3 billion as of 2010. Kazumi Matsui ha .... Routes # # # # # External links Hiroshima Expressway Public Corporation {{Expressways of Japan Expressways in Japan Roads in Hiroshima Prefecture ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ōta River
is a 103 kilometer (64 mile) long river in Hiroshima Prefecture, Japan. Its main stream originates in (1,339m) and empties through a flood control channel into the Seto Inland Sea. The river is one of the major rivers in the prefecture and descends through steep topography, with hydroelectric power plants situated along the river. Ōta River has numerous tributaries and branches into the delta area of Hiroshima which comprises Tenma, Kyūōta/Honkawa, Motoyasu, Kyōbashi, and Enkō rivers. Originally, the Ōta River passes through the western side of Aioi Bridge which was the aiming point for the atomic bombing of Hiroshima. A flood control channel was built along the former Yamate river in the late 1960s, which became the main passageway of the Ōta River. The original passageway of the Ōta River is now known as the Kyūōta River (旧太田川, ''Kyūōta-gawa'', lit. "Old Ōta") or Honkawa River (本川, ''Honkawa''). Ōta River runs through the municipalities of Hatsukaich ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hiroshima
is the capital of Hiroshima Prefecture in Japan. , the city had an estimated population of 1,199,391. The gross domestic product (GDP) in Greater Hiroshima, Hiroshima Urban Employment Area, was US$61.3 billion as of 2010. Kazumi Matsui has been the city's mayor since April 2011. Hiroshima was founded in 1589 as a castle town on the Ōta River delta. Following the Meiji Restoration in 1868, Hiroshima rapidly transformed into a major urban center and industrial hub. In 1889, Hiroshima officially gained city status. The city was a center of military activities during the imperial era, playing significant roles such as in the First Sino-Japanese War, the Russo-Japanese War, and the two world wars. Hiroshima was the first military target of a nuclear weapon in human history. This occurred on August 6, 1945, at 8:15 a.m., when the United States Army Air Forces (USAAF) dropped the atomic bomb "Little Boy" on the city. Most of Hiroshima was destroyed, and by the end of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Box Girder Bridge
A box girder bridge, or box section bridge, is a bridge in which the main beams comprise girders in the shape of a hollow box. The box girder normally comprises prestressed concrete, structural steel, or a composite of steel and reinforced concrete. The box is typically rectangular or trapezoidal in cross-section. Box girder bridges are commonly used for highway flyovers and for modern elevated structures of light rail transport. Although the box girder bridge is normally a form of beam bridge, box girders may also be used on cable-stayed and other bridges. Development of steel box girders In 1919, Major Gifford Martel was appointed head of the Experimental Bridging Establishment at Christchurch, Hampshire, which researched the possibilities of using tanks for battlefield engineering purposes such as bridge-laying and mine-clearing. Here he continued trials on modified Mark V tanks. The bridging component involved an assault bridge, designed by Major Charles Ingli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arch Bridge
An arch bridge is a bridge with abutments at each end shaped as a curved arch. Arch bridges work by transferring the weight of the bridge and its loads partially into a horizontal thrust restrained by the abutments at either side. A viaduct (a long bridge) may be made from a series of arches, although other more economical structures are typically used today. History Possibly the oldest existing arch bridge is the Mycenaean Arkadiko Bridge in Greece from about 1300 BC. The stone corbel arch bridge is still used by the local populace. The well-preserved Hellenistic Eleutherna Bridge has a triangular corbel arch. The 4th century BC Rhodes Footbridge rests on an early voussoir arch. Although true arches were already known by the Etruscans and ancient Greeks, the Romans were – as with the vault and the dome – the first to fully realize the potential of arches for bridge construction. A list of Roman bridges compiled by the engineer Colin O'Connor featur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rōmaji
The romanization of Japanese is the use of Latin script to write the Japanese language. This method of writing is sometimes referred to in Japanese as . Japanese is normally written in a combination of logographic characters borrowed from Chinese (kanji) and syllabic scripts (kana) that also ultimately derive from Chinese characters. There are several different romanization systems. The three main ones are Hepburn romanization, Kunrei-shiki romanization (ISO 3602) and Nihon-shiki romanization (ISO 3602 Strict). Variants of the Hepburn system are the most widely used. Romanized Japanese may be used in any context where Japanese text is targeted at non-Japanese speakers who cannot read kanji or kana, such as for names on street signs and passports and in dictionaries and textbooks for foreign learners of the language. It is also used to transliterate Japanese terms in text written in English (or other languages that use the Latin script) on topics related to Japan, such as l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north toward the East China Sea, Philippine Sea, and Taiwan in the south. Japan is a part of the Ring of Fire, and spans Japanese archipelago, an archipelago of List of islands of Japan, 6852 islands covering ; the five main islands are Hokkaido, Honshu (the "mainland"), Shikoku, Kyushu, and Okinawa Island, Okinawa. Tokyo is the Capital of Japan, nation's capital and largest city, followed by Yokohama, Osaka, Nagoya, Sapporo, Fukuoka, Kobe, and Kyoto. Japan is the List of countries and dependencies by population, eleventh most populous country in the world, as well as one of the List of countries and dependencies by population density, most densely populated and Urbanization by country, urbanized. About three-fourths of Geography of Japan, the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Architectural Design Competition
An architectural design competition is a type of design competition in which an organization that intends on constructing a new building invites architects to submit design proposals. The winning design is usually chosen by an independent panel of design professionals and stakeholders (such as government and local representatives). This procedure is often used to generate new ideas for building design, to stimulate public debate, generate publicity for the project, and allow emerging designers the opportunity to gain exposure. Architecture competitions are often used to award commissions for public buildings: in some countries rules for tendering public building contracts stipulate some form of mandatory open architectural competition. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shimizu Corporation
is an architectural, civil engineering and general contracting firm. It has annual sales of approximately US$15 billion and has been widely recognized as one of the top 5 contractors in Japan and among the top 20 in the world. It is a family business listed in the Tokyo and Osaka stock exchanges and a constituent of the Nikkei 225 index. About Shimizu The company is named after its founder Kisuke Shimizu, who was born in Koba Village, Etchu (now part of Toyama), and has nothing to do with the former city Shimizu in Shizuoka Prefecture. Kisuke Shimizu formed the company in Edo (now Tokyo) in 1804. The company has been headquartered there ever since. Shimizu Corporation is an international general contractor, publicly listed on the Tokyo, Nagoya Stock Exchange and the Osaka Securities Exchange and is a constituent of the Nikkei 225 stock index. It has a network spanning Asia, Europe, North America, the Middle East and Africa. Services offered * Planning & Consulting * Devel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Height Restriction Laws
Height restriction laws are laws that restrict the maximum height of structures. There are a variety of reasons for these measures. Some restrictions limit the height of new buildings so as not to block views of an older work decreed to be an important landmark by a government. For example, in the Russian capital of Saint Petersburg, buildings could not be taller than the Winter Palace. Other restrictions are because of practical concern, such as around airports to prevent any danger to flight safety. Height restriction laws sometimes become a point of contention in cities due to their use in regulating the growth of the housing supply. Fast growth of housing supply benefits renters by producing low prices and more choice, while slow or no growth in housing supply benefits property owners by allowing them to charge higher prices. In this way, height restriction laws often become part of a class conflict even when their original purpose was innocuous. Asia Malaysia Buildings in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hiroshima–Nishi Airport
was an airport in Nishi Ward, located southwest of Hiroshima City, Japan. History Hiroshima's first airport, , opened on a nearby island in Naka-ku, Hiroshima in 1940. It was largely destroyed during the atomic bombing of Hiroshima in 1945, but was used during the occupation of Japan as a radar base by the Royal Australian Air Force 111 Mobile Fighter Control Unit, and through the 1950s as a landing field for gliders and single-engine piston aircraft. Following the end of World War II, the Japanese government approved a plan for a new airport in a location which could take advantage of Hiroshima's natural river topography to keep aircraft from flying over residential areas. Hiroshima Airport opened on September 15, 1961, and was initially managed by the Ministry of Transport. The runway was extended from 1200 meters to 1800 meters in 1972. All Nippon Airways began Boeing 737 jet service to the airport in 1979, followed by Boeing 767 service in 1983. Further extensions w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prestressed Concrete
Prestressed concrete is a form of concrete used in construction. It is substantially "prestressed" ( compressed) during production, in a manner that strengthens it against tensile forces which will exist when in service. Post-tensioned concreted is "structural concrete in which internal stresses have been introduced to reduce potential tensile stresses in the concrete resulting from loads." This compression is produced by the tensioning of high-strength "tendons" located within or adjacent to the concrete and is done to improve the performance of the concrete in service. Tendons may consist of single wires, multi-wire strands or threaded bars that are most commonly made from high-tensile steels, carbon fiber or aramid fiber. The essence of prestressed concrete is that once the initial compression has been applied, the resulting material has the characteristics of high-strength concrete when subject to any subsequent compression forces and of ductile high-strength steel when sub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
