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Gateway to Korea
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Reporter 62 |
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The Yeong-Jong New Airport Highway Bridge, a steel, double deck, box-girder suspension bridge, links Incheon International Airport to Seoul city as a real gateway to Korea. It is the world’s first 3D self-anchored suspension bridge servicing a highway on the upper/lower decks and a railway on the lower deck. The bridge crosses the sea between Yeong-Jong island and Incheon city and lies between Kyeongseo-dong (Changdo) and Unbuk-dong (Yeong-Jong island) of Incheon city on the Yellow Sea. Leica Geosystems was invited by the New Airport Highway Company to perform a load test with GNSS RTK technology. Equipment and software completed the test smoothly, achieving impressive accuracies in the range of 1 cm. This load test convincingly vindicated the superiority of GNSS based bridge monitoring. After the test the upgrade and modification of the structural health monitoring system was completed using a GNSS monitoring system from Leica Geosystems that focuses on monitoring the girder geometry and the displacement of e bridge towers.
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