what materials were used to build the akashi kaikyo bridge

The Akashi Strait is a busy shipping port, so engineers had to design a bridge that would not block shipping traffic. 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 the Richter scale! Japan experiences some of the worst weather on the planet. The Akashi-Kaikyo Bridge owes its success to 7 key inventions found in 7 landmark bridges. It took two million workers ten years to construct the bridge, 181,000 tonnes of steel and 1.4million cubic metres of concrete. Sets of three high-intensity discharge lamps in the colors red, green and blue are mounted on the main cables. Do you really want to delete this item from your favorites? This Web site was produced for PBS Online by WGBH. The Akashi Kaikyo Bridge, the longest suspension bridge in the world, has the record main span of 1,991 meters with the total length of four kilometers. The structural rivets used in the bridge utilised a mild steel which had an ultimate tensile strength of between 413-482 MPa. Web site © 2000-2001 WGBH Educational Foundation. Educators' Guide | Shop. It is one of the key links of the Honshū–Shikoku Bridge Project, which created three routes across the Inland … The January 17, 1995 Kobe earthquake had its epicenter right between the two towers of the Akashi Straits Bridge. The beams also used steel for high tensile strength but for keeping it lightweight thus, making it cheaper. The most primitive version is a vine rope linking two sides of a chasm; a person travels across by hanging from the rope and pulling himself along, hand over hand. Completed in 1998, the Akashi Kaikyo is a 3.9km-long bridge built across the Akashi Strait, a 1,500m international shipping canal between the Pacific Ocean and the Sea of Japan. It forms part of the Honshu-Shikoku Highway. Large purpose built cranes were used to lift the sections, 4000 tonnes each, were bolted into position, one after another. Click photo International Database and Gallery of Structures, Aerodynamics of wind effects on the Akashi Kaikyo Bridge, Journal of Wind Engineering and Industrial Aerodynamics, Minh, Nguyen Nguyen / Yamada, Hitoshi / Miyata, Toshio / Katsuchi, Hiroshi, Aeroelastic complex mode analysis for coupled gust response of the Akashi Kaikyo bridge model, Fujikawa, Hiroyuki / Kishimoto, Yoshitaka / Nasu, Seigo, Aesthetic Design for Akashi Kaikyo Bridge, Transportation Research Record: Journal of the Transportation Research Board, Inspection, Evaluation and Maintenance of Suspension Bridges, FHAT/Public Roads: World's Longest Suspension Bridge Opens in Japan, Honshu Shikoku Bridge Authority: Akashi Kaikyo Bridge, Honshu Shikoku Bridge Expressway Company Limited, on-axis distance between cables at top of towers. It took two million workers ten years to construct the bridge, 181,000 tonnes of steel and 1.4million cubic metres of concrete. Japan is both a bridge-building dream and a nightmare. | And at 1,991 metres, its central span is the longest of any suspension bridge, anywhere. It is the pinnacle of bridge engineering. Such primitive bridges—some as long as 660 ft (200 m)—are still being used in areas such as rural India. Its two towers , at 928 feet, soar higher than any other bridge towers in the world. The Akashi Kaikyo Bridge, with a length of almost four kilometers, is the world’s longest suspension bridge.Opened in 1998, it spans the Akashi Strait (Akashi Kaikyo) between Kobe and Awaji Island and is part of the Kobe-Awaji-Naruto Expressway.. The Akashi Kaikyō Bridge (明石海峡大橋, Akashi Kaikyō Ōhashi) is a suspension bridge, which links the city of Kobe on the Japanese mainland of Honshu to Iwaya on Awaji Island. https://doi.org/10.1016/0167-6105(93)90142-b, https://doi.org/10.1016/s0167-6105(00)00056-8, https://doi.org/10.1177/0361198196154900102, Login The rope hangers used galvanized steel wire for high resistance. Created by: Corey Kozlovski, Block 4, due on Monday, Nov. 25 Akashi Kaikyō Bridge Located in Kobe and Awaji-shima, Japan Congruent Triangles are along the base of the entire bridge, on the towers, and the cables connecting the towers to the base of the bridge Type of Bridge: The longest bridge in Japan and the world is the Akashi-Kaikyo Bridge, completed in 1998 at a length of 1,991 metres. The Akashi-Kaikyo Bridge is also 692 meters longer than New York's Verrazano-Narrows Bridge (constructed in 1964), the longest suspension bridge in the United States. 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 Akashi Kaikyo Bridge isn't just long -- it's also extremely tall. 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. Suspension bridges are one of the earliest types devised by man. This work took place in 1994. Akashi Kaikyo Bridge is a suspension bridge, motorway bridge / freeway bridge, steel bridge and steel pylon that was built from 1988 until 1998. History. Location: Kobe and Awaji-shima, Japan The Measurements of the Akashi-Kaikyo Bridge: Akashi Kaiko Bridge is the world’s longest suspension bridge in the world, it has a length of 3911 meters or 12,831 ft. History: Cost to build: $4.3 billion Purpose: Roadway Before the The steel cable … Akashi Kaikyo Bridge is a suspension bridge, motorway bridge / freeway bridge, steel bridge and steel pylon that was built from 1988 until 1998. The six-lane suspension bridge, which transformed a 45-minute ferry ride into a four-minute journey by car, was complete. 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. The bridge is so long, it would take eight. Finally, in 1998, 10 years after construction began on the Akashi Kaikyo Bridge, the final piece of deck was in place. The bridge connects Kobe on the island of Honshu (Japan) with Iwaya on Awaji Island while crossing the busy Akashi Strait. Building Big Home | Site Map | Labs | Databank | Glossary They supported their bridge with a truss, or complex network of triangular braces, beneath the roadway. Four decades in the gestation, the bridge is now used by approximately 23,0 The Akashi Kaikyō Suspension Bridge has been designed to withstand earthquakes and harsh sea conditions. The TMDs swing in the opposite direction of the wind sway. The bridge was originally designed to be 12,825 feet. The world’s longest single span is the 1.2-mile main suspension section that’s part of a three-span bridge crossing the Akashi Strait in Japan. All data contained herein is subject to change and is provided without warranties. The materials that are used to build a cantilever bridge are typically structural steel, iron, and also prestressed and reinforced concrete. The total bridge length is an impressive 3,911 meters. The Kobe earthquake in January 17, 1995 is an example of the bridge’s strength. The project is located in Kobe and Awaji, Hyogo, Japan. The project is located in Kobe and Awaji, Hyogo, Japan. Bridges | Domes | Skyscrapers | Dams | Tunnels Designed by Japanese engineer Satoshi Kashima, the Akashi Kaikyō is ranked as the world's longest suspension bridge, thanks to a central span of 1,991 metres. The bridge has been used by approximately 25,000 cars every day along with its being a tourist attraction since 2005. Japan consists … If conventional wires with a strength of 160 kgf/mm2 (1,570 N/mm2) were used, then the Akashi-Kaikyo Bridge would require 2 cables with a diameters of 1,000 millimeters on each side. In addition, engineers placed 20 tuned mass dampers (TMDs) in each tower. They supported their bridge with a truss, or complex network of triangular braces, beneath the roadway. This steel had sufficient tensile strength and shear strength for its use as rivets in the construction of the bridge. Building began in 1988. It is part of the ongoing Honshu-Shikoku Bridge Authority (HSBA) project to link the islands of Honshu, Awaji and Shikoku. They also had to consider the weather. For the foundation, underwater towers developed a new type of mixing a “concrete submarine that is not broken” (a “nondisintegration concrete). The steel cable used could circle the world seven times. The original planned length was 1990 meters for the main span, but the seismic event moved the towers apart by almost a meter. The original design of the bridge was prepared for both car… With a main center span of almost 2km (1,991m) it surpasses the 2nd longest suspension bridge by more than 300m. Before the construction of the bridge, boats and ships (ferries) were used to carry passengers and vehicles across the Akashi strait. Work crews hoisting the roadway of the Akashi Kaikyo Bridge, Kobe and Awaji-shima, Japan: Honshu-Shikoku Bridge Authority It spans a waterway 4km (3,911m) wide and is designed to withstand powerful typhoons, tsunami, and earthquakes. Has also been used reinforced concrete. The Akashi Kaikyo Bridge (AKB) is a three-span, two-hinged stiffening girder system suspension bridge that spans the Akashi Strait, connecting the Japanese mainland at Maiko, Taruni-ward in Kobe with Matsuho on Awaji Island. What materials were used to build the nelson Mandela bridge? They supported their bridge with a truss, or complex network of triangular braces, beneath the roadway. The Akashi Kaikyo Bridge. Its two towers, at 928 feet, soar higher than any other bridge towers in the world. But on January 17, 1995, the Great Hanshin Earthquake stretched the bridge an additional three feet. 290 sections make up the entire bridge. Somewhat more sophisticated designs incorporate a flat surface on which a person can walk, sometime… In 1998, Japanese engineers stretched the limits of bridge engineering with the completion of the Akashi Kaikyo Bridge. Rain pours down at a rate of 57 inches per year. The open network of triangles makes the bridge very rigid, but it also allows the wind to blow right through the structure. It crosses the busy Akashi Strait (Akashi Kaikyō in Japanese) as part of the Honshu–Shikoku Highway. : You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. Before the construction of the bridge, boats and ships (ferries) were used to carry passengers and vehicles across the Akashi strait. The Akashi Strait Bridge was a challenge for engineers. The spectacular view of the bridge at night resulted in the name, Pearl Bridge. Akashi Kaikyo Bridge - Designing Buildings Wiki - Share your construction industry knowledge. Since construction of the deck had not yet begun, the change was easily accommodated in the slightly altered final design. Sets of three high-intensity discharge lamps in the colors red, green and blue are mounted on the main cables. The Akashi Kaikyo Bridge, the longest suspension bridge in the world, has the record main span of 1,991 meters with the total length of four kilometers. Thus, "Akashi Kaikyo" is "Akashi Strait". Akashi Strait Bridge, also called Akashi Kaikyo Bridge or Pearl Bridge, suspension bridge across the Akashi Strait (Akashi-kaikyo) in west-central Japan.It was the world’s longest suspension bridge when it opened on April 5, 1998. "Kaikyo" simply means "strait". But not finished. Structurae Version 7.0 - © 1998-2020 Nicolas Janberg. Materials The main material used in the bridge superstructure is steel. Although designed to last 200 years, the Akashi Kaikyo Bridge requires daily maintenance. The bridge holds three records: it is the longest, tallest, and most expensive suspension bridge ever built. This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. While under construction the bridge remains largely unaffected by the Kobe earthquake. The Akashi Kaikyo Bridge isn't just long -- it's also extremely tall. Not far out of Kobe in the town of Maiko lays the world’s longest suspension bridge – Akashi Kaiyo Bridge, also known as the Pearl Bridge. It would take four Brooklyn Bridges to span the same distance! The Akashi Kaikyo Bridge in Japan, which was completed in 1998, contains the world's longest suspension span (distance between support towers)—6,529 ft (1,991 m); the entire bridge, including the portions between the towers and the shores, totals nearly 2.5 mi (4 km). History. REGISTER FOR FREE. The Akashi Kaikyo Suspension Bridge is the longest suspension bridge in the world and it is probably Japan’s greatest engineering feat. Fact: Akashi Kaikyo Bridge was built by the government to make the Akashi strait much safer for travel, as it was the only way to transport people and goods. Completed in 1998, the Akashi Kaikyo is a 3.9km-long bridge built across the Akashi Strait, a 1,500m international shipping canal between the Pacific Ocean and the Sea of Japan. The Great Seto Bridge forms the main rail connection, and the Akashi Kaikyo Bridge is the economic artery between the mainland and Shikoku.” Spanning the length of the exhibition hall is a 1:100 scale 40m-long test model of the bridge. Development of high-strength wire, a key player in reducing the weight of 2,000-meter-long suspension bridges. Local Wonders | Who Builds Big? Akashi Strait Bridge, also called Akashi Kaikyo Bridge or Pearl Bridge, suspension bridge across the Akashi Strait (Akashi-kaikyo) in west-central Japan.It was the world’s longest suspension bridge when it opened on April 5, 1998. The Akashi Kaikyo Suspension Bridge is the longest suspension bridge in the world and it is probably Japan’s greatest engineering feat. The Akashi–Kaikyo 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. Gale winds whip through the Strait. The Akashi Kaikyō Suspension Bridge has been designed to withstand earthquakes and harsh sea conditions. Use as rivets in the bridge ’ s construction, the Akashi Strait 660 ft ( 200 )... Traffic on 5 April 1998 was 1990 meters for the main towers had to a... Been used by approximately 25,000 cars every day along with its being tourist. This steel had sufficient tensile strength and shear strength for its use as rivets in the opposite of!, it would take four Brooklyn bridges to span the same distance the of., Hyogo, Japan '' Kaikyo '' is `` Akashi Kaikyo bridge is the longest, tallest and... 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