what does the akashi kaikyo bridge cross

See other pictures of bridges. Much of the earths seismic activity occurs at these plate boundaries, making Japan subject to high seismic and volcanic activity. Some of the, 7 takeaway facts about AkashiKaikyo Bridge in Japan. By late 1993 the steel towers, measuring 974 feet (297 meters) in height, had been completed. It would take four Brooklyn Bridges to span the same distance! Group Tours in Japan. Design & Construction of Akashi Kaikyo Bridge - AboutCivil.Org 3. The Akashi Kaikyo currently holds the record for the longest center span of any suspension bridge, measuring in at about 6,500 feet (1.237 miles). At the foot of Akashi Kaikyo Bridge, visitors can freely walk along a pleasant promenade. In 1961, the Ministry of Construction and Japan National Railways jointly commissioned the Japan Society of Civil Engineers (JSCE) to conduct a technical study, and the JSCE established a committee to investigate five potential routes between Honshu and Shikoku. All Rights Reserved. Sign up and be the first to hear our news and special offers! From July 20 and the whole of August: open 9:15 am to 6 pm (last entry at 5:30 pm) and open seven days a week. Akashi Kaikyo Bridge - Students | Britannica Kids | Homework Help Among them the air injection system dry. The Akashi Kaikyo Bridge is a part of the Honshu-Shikoku Bridges, which link the four main islands in Japan. So when the wind blows the bridge in one direction, the TMDs sway in the opposite direction, effectively "balancing" the bridge and canceling out the sway. Akashi Kaikyo, the world's second longest suspension bridge, connects the island of Awaji with the city of Kobe. Built in 10 years, the bridge Akashi Kaikyo links Kobe and Awaji island!, spanning the Seto Inland Sea. It is also possible to visit the bridge from the inside between April and November. In fact, in 1955 two ferries sank in the straits during a storm with the loss of 168 lives. The bridge was originally intended to be both a railway as well as a road bridge. The current can get quite strong. It is the longest and strongest suspension bridge in the world and is also known as the Pearl Bridge. The Akashi Kaikyo Bridge is undoubtedly one of the biggest bridges in history. It is part of the Kobe-Awaji-Naruto Expressway, and crosses the busy and turbulent Akashi Strait . And the bridge itself has its northern end in Kobe City. So, what do you think? The towers are 283 meters above sea level, and the foundations are in 60 meters of water. The bridge towers have mass dampers in order to reduce vibrations in the structure during earthquakes and typhoons. Akashi Kaikyo Bridge - Wikimapia [9][10] The bridge was opened for traffic on April 5, 1998, in a ceremony officiated by the then-Crown Prince Naruhito and his spouse Crown Princess Masako of Japan along with Construction Minister Tsutomu Kawara. What are the 5 longest suspension bridges in the world? For example, in 1955 a severe storm caused two ferries to sink resulting in the deaths of, These two bridges, along with the Seto Great Bridge, between Kojima on Honshu and Sakaide on Shikoku, form the main parts of the, Her central span had originally been planned to be, As the bridge stands in a seismically unstable part of the world, engineers needed to ensure her design would stand the test of time. The Akashi Kaikyo Bridge (Akashi Kaikyo Ohashi), also known as the Pearl Bridge in Japan is the world's longest suspension bridge (measured by the length of the center span of 1,991 metres/6,532 feet). Akashi-Kaikyo Bridge, Kobe, Japan Length: 6,532 feet Before this steel behemoth bridged the Akashi Strait that separates Kobe from Iwaya, severe storms in the area would routinely sink ferries. The bridge is a publicly accessible highway and a vital part of the Kobe-Awaji-Naruto Expressway. It is also a special place to look at the bridge draped in lights at night. And its almost 1,000 ft. tall, situated 200 ft. above the water. It is a tragic event that is at the origin of the bridge. It is the longest suspension bridge in the world to date, as measured by the length of its . The distance between the two main towers standing in the Akashi Strait is 1,991 meters and is famous for being the longest in the world! Sun Yat-sen was the first president of the Republic of China and spent a lot of time in exile in Japan. The Akashi Kaikyo Bridge replaced a ferry service that used to connect the city of Kobe and the island of Awaji across the Akashi Strait. The distance between the bridge's two cables is 35.5 m. But, how did the Akashi Kaikyo survive? This impressive bridge is not only very long, but it has been designed to withstand earthquakes up to 8.5on the Richter scale! The open network of triangles gives rigidity to the bridge and also allow the wind to pass through the structure. The huge concrete and steel anchor blocks at either end of the bridge each weigh 350,000 tons. It can be found in the Seto Inland Sea, just between the main island of Honshu and Shikoku - the smallest, least populous, and least visited of Japan's four main islands. This coating system, zinc-rich paint, put directly on the steel surface makes an important prevention work before the advancing corrosion. Before the Akashi Kaikyo, boats and ferries were used to carry passengers and vehicles across the waterway. Once you come out of the Maiko station, you will have to cross the road and walk past the Akashi Kaikyo Bridge Exhibition Center on the left. 5. It links the city of Kobe on the mainland of Honshu to Iwaya on Awaji Island by crossing the busy Akashi Strait. Urban and Rural Japan Explore Japan's essential sites and hidden gems, The Longest Suspension Bridge in the World, the Akashi Kaikyo Bridge. The Akashi Kaikyo Bridge isn't just long -- it's also extremely tall. Britannica does not review the converted text. Akashi Kaikyo Bridge - Rare Photos by Viki Pandit The Akashi Kaikyo Bridge (Japanese: , Hepburn: Akashi Kaiky hashi) is a suspension bridge which links the city of Kobe on the Japanese island of Honshu to Iwaya on Awaji Island. This Web site was produced for PBS Online by WGBH. Building Big Home | Site Map | Labs | Databank | Glossary Hokudan Earthquake Memorial Park and Nojima Fault Preservation Museum commemorates the epicenter of the Great Hanshin Earthquake of 1995. 12 Amazing Akashi Kaikyo Bridge Facts | Ultimate List To reduce maintenance requirements, a final coat of paint highly resistant fluoropolymer was used to maintain the shine and prevent corrosion. The appearance of the towers was designed to meet the aesthetic issues, reliability, future, and nice balance between light and shadow, in view of the structural characteristics of the tower and the aesthetic characteristics of the surrounding. 3. It is nicknamed Pearl Bridge for its beautiful appearance, and is an attraction in itself. How did the Japanese engineers get around these problems? It is known as the world's longest suspension bridge, with a total length of 3,911 meters and a distance of 1,991 meters between the two main towers. The Akashi Kaikyo Bridge that links the City of Kobe in Hyogo Prefecture with Awaji-shima Island. 5. It was completed in 1998, and at the time, was the longest central . A major passageway for shipping, it is also known for its gales, heavy rain, storms, and natural disasters. The Akashi Strait is a busy shipping port, so engineers had to design a bridge that would not block shipping traffic. This article was most recently revised and updated by, https://www.britannica.com/topic/Akashi-Strait-Bridge, The James Dyson Foundation - Akashi Kaikyo Bridge, Public Broadcasting Service - Akashi Kaikyo Bridge, Web Japan - Japan Atlas - Akashi Kaikyo Bridge, Akashi Kaikyo Bridge - Student Encyclopedia (Ages 11 and up). What is the Akashi Kaikyo Bridge made out of? The ensuing shock and public outrage convinced the Japanese government to develop plans for a bridge to cross the strait. Yet despite her inherent strength, the bridge is also able to expand and contract several times a day. Coronavirus (COVID-19) Advisory Information. Wind tunnel laboratory test with a full model The great earthquake of Magnitude 7.2 in Richter scale occurred around Akashi Strait, whose epicenter was 10km to 20km deep, at 5:46 on January 17, 1995. The former residence of Sanji Muto is older, built in 1907 in a more western style, and is also open to the public. The Akashi Kaikyo Bridge | Japan Experience This was done in 1998, forty-three years later. Roughly 300,000 kilometers of cabling was used in the bridge's construction. The circular-shaped drawer has no directional property, and thus makes them more stable and easier to handle in strong currents of the Strait. The Kobe earthquake on January 17, 1995 had its epicenter just between the two towers of the Akashi Strait Bridge. Using steel with high tensile strength for the beams made very strong yet lightweight, and thus cheaper. It can withstand 178 mph winds, harsh sea currents, and earthquakes measuring up to an 8.5 magnitude. It would take four Brooklyn Bridges to span the same distance! Honpukuji Temple The Water Temple (Mizumido). We'll also finish up with some handy takeaway facts about this incredibly long, and tall marvel of civil engineering. There are no trains on Awaji Island. The two towers were originally 1,990m (6,530ft) apart, but the Great Hanshin earthquake on January 17, 1995 (magnitude 7.3, with epicenter 20km west of Kobe) moved the towers (the only structures that had been erected at the time) such that the central span had to be increased by 1m (3.3ft). This system protects the main cable corrosion Spanning 12,828 feet over the Akashi Strait, this magnificent structure is currently the longest suspension bridge in the world and a source of pride for Japan. Work began in 1988 on the bridges underwater foundations, some of which extend as deep as 197 feet (60 meters) below water. With this design, the Akashi Kaikyo can handle 180-mile-per-hour winds, and it can withstand an earthquake with a magnitude of up to 8.5 on theRichter scale." It is estimated that it took over 2 million workers, 180,000 tonnes of steel and 1.4 million cubic meters of concrete to complete the bridge. In 1955, two ferries sank in the Shiun Maru disaster during a storm, killing 168 people. Located in Japan, and completed in 1998, it connects the city of Kobe with Iwaja on Awaji Island by crossing the busy Akashi Strait. Since she is built near the so-called "Ring of Fire", the Kobe earthquake is unlikely to be the last time the bridge will need to resist the forces of nature. The Akashi Kaikyo now serves as one of Japans many popular tourist attractions. There is also a cafe and small souvenir shop here. In 1967, the committee compiled the results of the technical study, concluding that a bridge across the Akashi Strait would face "extremely severe design and construction conditions, which have no similar examples in the world's long-span bridges" and recommending additional study. The anchorages are designed to make the huge concrete structures seem small and balanced. The central span was originally designed to be 1,990 metres (6,529 feet) long, but the Kbe earthquake of 1995 forced the two towers, which were still under construction, more than 1 metre (3 feet) farther apart. In 1995 the Great Hanshin Earthquake struck. The Strait has been a productive fishing area since ancient times, and is an important waterway, used by more than 1,400 boats a day. It was constructed from 1989 to 1998 and opened in 1998 (for over 20 years) at nearly 6,000 feet. The steel cables have 300,000 kilometres (190,000mi) of wire: each cable is 112 centimetres (44in) in diameter and contains 36,830 strands of wire. There are also a number of campsites on the island for the budget traveler. With its 14 spectral bands from the visible to the thermal infrared wavelength region and its high spatial resolution of 15 to 90 meters (about 50 to 300 feet), ASTER images Earth to map and monitor the changing surface of our planet. It extends 12,828 feet (3,910 meters) across the Akashi Strait, connecting the Kobe metropolitan area on Honshu with Awaji Island. The bridge is one of the key . As the bridge stands in a seismically unstable part of the world, engineers needed to ensure her design would stand the test of time. With a total length of 3,910 meters (12,828 feet), the two main towers suspend two thick cables to create the world's longest suspension bridge with the span of 1,990 . Over 100 contractors were hired for the job and construction lasted almost a decade. It is a substantial 6-lane road bridge that connects Kobe on the main island of Honshu with Iwyaya on the smaller Japanese island of Awaji. From the ground floor entrance you ride an elevator up and then walk along the300 meter long walkway, 50 meters above the water below, to the observation lounge. This is a revolutionary idea because the cost of periodic maintenance is avoided. The Akashi Kaikyo Bridge connects Honshu and Awaji Island. Let us know if you have suggestions to improve this article (requires login). The main material used in the bridge superstructure is steel. Like many feats of transportation before it, the Akashi Kaikyo Bridge was built out of necessity. The bridge has been designed to withstand earthquakes and the harsh sea conditions of the area. The central span is 1,991 metres (6,532 feet) long, and each of the two side spans measures 960 metres (3,150 feet). Currently, it is the second-longest, behind the 1915 anakkale Bridge that was opened in March 2022. Nightlife in Japan: Going out, exploring and drinking. Most people haven't heard of the small island of Awaji. Would you take a journey across the Akashi Kaikyo Bridge? Each anchor requires, an average of 350,000 tons of concrete. The bridge was originally designed to be 12,825 feet. A popular fishing spot. There are Express Bus services from JR Shin-Kobe Station to Sumoto on Awaji (2 hours) and on to Tokushima on Shikoku. The Akashi-Kaikyo Bridge (, Akashi Kaiky -hashi? Beneath the bridge from the Kobe side, you can access the Maiko Marine Promenade, which affords views of the interior of the colossal bridge, as well as the Akashi Strait and Osaka Bay. Akashi Kaikyo Bridge connects Kobe city on Honshu to Iwaya on Awaji Island. Akashi Kaikyo Bridge, also called Akashi Strait Bridge or Pearl Bridge, suspension bridge across the Akashi Strait (Akashi-kaikyo) in west-central Japan. (The bridge that forms the Awaji-to-Shikoku section is called the Onaruto Bridge.). Articulating high tension bolts were used to connect field. The current can get quite strong. A new, third level of content, designed specially to meet the advanced needs of the sophisticated scholar. Akashi Kaikyo Bridge also called the Akashi Strait bridge or Pearl Bridge is one of the world's longest suspension bridges across the. Originally the central span was designed to measure 1.990m, but the Great Hanshin Earthquake, the January 17, 1995, moved the 1m towers, so far the only thing that was up. Also, large deep foundation anchors were built on reclaimed land with many new technologies. [6], Investigations for a bridge across the strait were first conducted by the Kobe municipal government in 1957, followed by an evaluation by the national Ministry of Construction in 1959. A few meters away a small lane goes right to the edge of the Akashi Strait. The Akashi Kaikyo Bridge cost an estimated 500 billion Japanese Yen (roughly $3.6 billion) to construct. See theJenova ferry schedule (top chart: weekdays, lower chart: weekends/public holidays; left hand side: Iwaya to Akashi, right hand side: Akashi to Iwaya). Currently the longest spanning suspension bridge in the world, the Akashi Kaiko Bridge stretches 12,828 feet across the Akashi Strait to link the city of Kobe with Awaji-shima Island. The cables are composed of 36,830 strands of wire, with a total wire length of300,000 kilometers. In fact, in 1955 two ferries sank in the straits during a storm with the loss of 168 lives. This Strait is located south of the city of Kobe and to the east of the major city of Osaka. [1][9], The AkashiKaikyo bridge has a total of 1,737 illumination lights: 1,084 for the main cables, 116 for the main towers, 405 for the girders and 132 for the anchorages. 1A consists of an underground circular retaining wall filled with roller-compacted concrete, 2P and 3P are circular underwater spread-foundation caisson structures, and 4A is a rectangular direct foundation. Aside from its length, the Akashi Kaikyo Bridge is designed to hold up even under Japans most relentless and extreme weather conditions. It was completed in 1998,[1] and at the time, was the longest central span of any suspension bridge in the world,[3] at 1,991 metres (6,532ft). Sumoto Castle on Awaji Island is a reconstructed castle but still has many of its original stone walls. The exhibits are surprisingly interesting even for those who are not usually enamored of things technical. Akashi Kaikyo Bridge is easily reached from nearby Kobe, Kyoto or Osaka. A unique panoramic observatory over the bay. This is an international waterway that is approximately 1,500 meters wide and is a busy shipping lane. Free for children. Her central span was originally designed to be, An 81-year-old Indian is taking one of the toughest examinations in the world. The change in length was absorbed into the final design which slightly altered in some meters. Tarumi-ku, Kobe-shi You may therefore be wondering why it is called the "Akashi" Kaikyo Bridge when it is almost 2 km east of Akashi City. The gray-green paint used for AKB is different from the color used on other bridges Honshu-Shikoku sistma linking the islands. Akashi Kaikyo Bridge | Type, History, Length, Height, & Facts Built in 10 years, the bridge Akashi Kaikyo links Kobe and Awaji island!, spanning the Seto Inland Sea. Currently the longest spanning suspension bridge in the world, the Akashi Kaiko Bridge stretches 12,828 feet across the Akashi Strait to link the city of Kobe with Awaji-shima Island. "View from one of the 3 roundtrip ferry trips I took on a late afternoon before sunset. But on January 17, 1995, the Great Hanshin Earthquake stretched the bridge an additional three feet. The Akashi Strait, connecting the bay Osaka and Harimanada, is about 4 miles wide. Each of the two outer sections measure 3,150 feet (960 meters), while the center span has a length of 6,532 feet (1,991 meters)almost twice that of the longest center span of any other bridge. Please refer to the appropriate style manual or other sources if you have any questions. Improved homework resources designed to support a variety of curriculum subjects and standards. In April the following year, took place the opening ceremony and after several investigations and procedures, construction began in May 1988 and lasted ten years. There are several historic buildings in Maiko Park, including the former home of Sun Yat-sen, the founding father of the Chinese Republic; in the background is the Former Residence of Sanji Muto (aka the Former "Kanebo Maiko Club"). The bridge was designed by engineer Satoshi Kashima and built by Matsuo Bridge Co., responsible for building some of the most famous bridges to date, including the Akashi-Kaikyo Bridge. The instrument was built by Japan's Ministry of Economy, Trade and Industry. The high-speed ferry service between Sumoto and Kansai International Airport (KIX) ceased in 2007. As a result, the Japanese government decided the strait needed a suspension bridge to cross the strait. It spans the Akashi Straits, from Kobe, in Hyogo Prefecture, to the northern tip of Awaji Island. The primary tower is made of steel, and the shaft has a cruciform cross section which is insensitive to wind-induced oscillation. [8], The bridge has four substructures: two main piers (located beneath the water) and two anchorages (on land). This 6.9 magnitude earthquake killed over 6,000 people and destroyed over 100,000 buildings, but the bridge towers remained standing. This makes Akashi Kaikyo Bridge also one of the world's tallest. The channel the Akashi Kaikyo Bridge crosses is one of the busiest sea lanes in the world with around a thousand boats passing under it every day. Construction of the Akashi Kaikyo Bridge began in 1988. The Akashi Kaikyo Bridge is also sometimes referred to as the " Pearl Bridge " and is a suspension bridge that crosses the Akashi Strait in Japan. The Akashi -Kaikyo Bridge is a suspension bridge about four kilometers long linking Kobe City and Awaji Island in Hyogo Prefecture. In total, the bridge is 3,911 meters long. But the construction was finally restricted to a road bridge. [7], In response to the report, the HonshuShikoku Bridge Authority (now the Honshu-Shikoku Bridge Expressway Company[4]) was established in 1970, which conducted extensive investigations, including sea trials to establish the construction method of a submarine foundation. Construction began in 1988 and is due to be completed in the spring of 1998. After translating an article, all tools except font up/font down will be disabled. Magazines tour of the Seven Great Transportation Feats of the World? Approximately 700,000 bolts hold the tower sections together. 4-114 Higashimaikocho Akashi Kaikyo Bridge - Kobe Travel - japan-guide.com [4] 2P is located at the edge of the sea plateau at a level depth of 4050 m and a bearing depth of 60 m, and 3P is located at the symmetrical point to 2P with respect to the bridge's center, at a level depth of 3639 m and a bearing depth of 57 m.[4], The towers are located in an area of strong tidal currents where water velocity exceeds 7 knots (about 3.6m/s). The bridge has around 1,600 lights that are used to illuminate it year-round, creating a spectacular light show that can be seen from across the bay. Although planning for the construction of the Akashi Kaikyo Bridge began in 1955, the project did not receive government approval until 30 years later. Sets of three high-intensity discharge lamps in the colors red, green and blue are mounted on the main cables.
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