Bridges | Domes | Skyscrapers | Dams | Tunnels 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. The materials that are used to build a cantilever bridge are typically structural steel, iron, and also prestressed and reinforced concrete. The Akashi Kaikyo Bridge. It is one of the key links of the Honshū–Shikoku Bridge Project, which created three routes across the Inland … 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. The Kobe earthquake in January 17, 1995 is an example of the bridge’s strength. Four decades in the gestation, the bridge is now used by approximately 23,0 Japan is both a bridge-building dream and a nightmare. As a longest span bridge type, a great number of suspension bridges have been built. REGISTER FOR FREE. The Akashi Kaikyo Bridge isn't just long -- it's also extremely tall. They supported their bridge with a truss, or complex network of triangular braces, beneath the roadway. Before the construction of the bridge, boats and ships (ferries) were used to carry passengers and vehicles across the Akashi strait. The bridge was opened to traffic on 5 April 1998. Development of high-strength wire, a key player in reducing the weight of 2,000-meter-long suspension bridges. Materials The main material used in the bridge superstructure is steel. The spectacular view of the bridge at night resulted in the name, Pearl Bridge. The original planned length was 1990 meters for the main span, but the seismic event moved the towers apart by almost a meter. It spans a waterway 4km (3,911m) wide and is designed to withstand powerful typhoons, tsunami, and earthquakes. They supported their bridge with a truss, or complex network of triangular braces, beneath the roadway. The Akashi Kaikyo Bridge isn't just long -- it's also extremely tall. The bridge was originally designed to be 12,825 feet. 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. 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. Although designed to last 200 years, the Akashi Kaikyo Bridge requires daily maintenance. Japan consists … 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. 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. 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 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. And at 1,991 metres, its central span is the longest of any suspension bridge, anywhere. To do this, a gigantic 80-meter (263-foot) diameter, 70-meter (230-foot) high steel cylinder This work took place in 1994. New Material for the Wiring in the Cables ; New Wind Tunnel Built Specifically for Testing a Model of the Bridge ; Vertical Stabilizer Used for Balance; 10 Akashi Kaikyo vs. … Building Big Home | Site Map | Labs | Databank | Glossary This Strait is located south of the city of Kobe and to the east of the major city of Osaka.. 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). What materials were used to build the nelson Mandela bridge? Before the construction of the bridge, boats and ships (ferries) were used to carry passengers and vehicles across the Akashi strait. Akashi Kaikyo Bridge is a suspension bridge, motorway bridge / freeway bridge, steel bridge and steel pylon that was built from 1988 until 1998. The bridge is so long, it would take eight. 290 sections make up the entire bridge. 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. Educators' Guide | Shop. The bridge crosses the Akashi Strait. The Kobe earthquake in January 17, 1995 is an example of the bridge’s strength. All data contained herein is subject to change and is provided without warranties. The steel cable used could circle the world seven times. The Akashi Kaikyō Suspension Bridge has been designed to withstand earthquakes and harsh sea conditions. The January 17, 1995 Kobe earthquake had its epicenter right between the two towers of the Akashi Straits Bridge. The Akashi Strait is a busy shipping port, so engineers had to design a bridge that would not block shipping traffic. Development of high-strength wire, a key player in reducing the weight of 2,000-meter-long suspension bridges. The Akashi-Kaikyo Bridge owes its success to 7 key inventions found in 7 landmark bridges. 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 suspension bridge connects the city of Kobe (mainland of Honshu) to Iwaya (Awaji Island) in Japan. The project is located in Kobe and Awaji, Hyogo, Japan. The original design of the bridge was prepared for both car… 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! The six-lane suspension bridge, which transformed a 45-minute ferry ride into a four-minute journey by car, was complete. The towers of the bridge contain tuned mass dampers in order to diminish the vibrations in the structure during earthquakes and typhoons. In addition, engineers placed 20 tuned mass dampers (TMDs) in each tower. Somewhat more sophisticated designs incorporate a flat surface on which a person can walk, sometime… Rain pours down at a rate of 57 inches per year. While under construction the bridge remains largely unaffected by the Kobe earthquake. This Web site was produced for PBS Online by WGBH. It took two million workers ten years to construct the bridge, 181,000 tonnes of steel and 1.4million cubic metres of concrete. 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.. 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. The longest bridge in Japan and the world is the Akashi-Kaikyo Bridge, completed in 1998 at a length of 1,991 metres. 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 Local Wonders | Who Builds Big? The Akashi Kaikyo Suspension Bridge is the longest suspension bridge in the world and it is probably Japan’s greatest engineering feat. The bridge connects Kobe on the island of Honshu (Japan) with Iwaya on Awaji Island while crossing the busy Akashi Strait. 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