Getting on the Network: Innovation in Arch Design

The town of Bechyne is located in on River Luznice. Nestling in the center of the town is an imposing castle and convent that overlook the river in a narrow valley, forming a historical and dramatic setting. Construction of a replacement bridge at this location called for a slender and fragile structure which would fit well with the surroundings. The designer's choice was the light and slender form of a 'network' arch to carry the road across the river. Another reason for the choice of this structural type was its low static height that will give clearance for the predicted hundred-year flood level while still retaining the existing vertical alignment. This is the first application of the 'network' arch in the Czech Republic and only the third in the world. The design was invented by Professor Per Tveit from Norway, who defined it as very light steel arch bridge with prestressed concrete ties, where the inclined hangers cross each other at least twice.


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  • Accession Number: 01006542
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 19 2005 5:23PM