0000000000428757
AUTHOR
Per Tveit
showing 3 related works from this author
How to Design Economical Network Arches
2019
The network arch is an economical bridge type that can look good and needs 35 to 50 % less steel. Economical methods of erection using light steel skeletons can be found. The network arch is defined by having hangers that cross each other at least twice [1]. The arches are made of steel. When the distance between the arches is less than 20m, the author thinks that the tie should normally be made of concrete.
Network Arches: The World's Lightest Arch Bridges
2012
Summary Network arches have a tensile and a compressive flange with a web consisting of crossing hangers. Some of the hangers cross each other twice. The network can be seen as a very light, simply supported beam. There is little bending. There is a lot of tension in tie and hangers. The arches are well supported by hangers and wind bracing. Thus the buckling strength of the arch is high as long as few hangers relax. That is easiest to prevent when a concrete tie gives extra weight in the tie. The optimal shape of network arches is discussed. In two lane and two track network arches the biggest bending in the tie is usually the transverse bending half way between the arches. The optimal sha…
Various information on network arches
2016
<p>Network arches are light, elegant and economical bridges. They will normally have no dangerous vibrations due to wind. Light steel skeletons with tubular arches can be used when erecting network arches. Before the concrete tie is cast, the arches are filled with concrete. Polymer threads under the tie can be used for counteracting deflections and strengthening concrete ties.</p>