Akashi Kaikyō Bridge

34.618888888889135.02111111111Koordinaten: 34 ° 37 '8 " N, 135 ° 1' 16" E

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The Akashi Kaikyo Bridge (Japanese明石 海峡 大桥Akashi Kaikyo Ohashi, German big bridge the Akashi strait ), named after the waterway from Akashi, is a highway suspension bridge in Japan. It connects the urban district Tarumi -ku Kobe on the main island of Honshu with Awaji City on the southern island of Awaji -shima with 2 × 3 lanes. With a center span of 1991 m, it is the bridge with the largest span in the world since 1998.

History

The foundation stone was laid in April 1986, construction began in May 1988.

Originally, the distance between the two 297.3 m high piers was exactly 1990 m. The devastating earthquake in Kobe on 17 January 1995 whose epicenter was about 2 kilometers east of the south tower, but the two bridge towers pushed almost a meter further apart so that the distance is exactly 1990.8 m today. Since the bridge at this time was still under construction, but the adjustment was preparing it no trouble.

Was opened to traffic, the bridge on April 5, 1998. Costs amounted to the equivalent of 7.5 billion U.S. dollars.

Specifications

The total length of the bridge between the support cable bolts is 3911 m, the width between the suspension ropes 35.5 m. Each of the two support cables has a diameter of 112.2 cm and consists of 36,830 wires with a diameter of 5.23 mm. The pylons have a height of 297.3 m above the water surface. The stiffening beam, which carries the road, is a 14.0 m high steel truss structure.

The total weight of the bridge ( without towers, road paving and building construction) is 148,000 tons. In each case, the two 23,000 -ton towers of the bridge tuned mass dampers were installed to counteract vibrations during earthquakes and typhoons.

Gallery

Bridge geometry

Seen from the island of Awaji from

(Video) The Akashi - Kaikyo Bridge