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The advancement of wire rope in movable bridges

The advancement of wire rope in movable bridges The paper describes the recent developments made in the design and manufacturing of wire rope for specific use as Counterweight and Operation ropes on vertical lift bridges. New wire rope materials and designs provide increased strengths and improved mechanical properties allowing designers and engineers to take full advantage of the material strengths available. These developments involve high tenacity synthetic materials protected by high strength corrosion resistant carbon steel wires. This provides a hybrid wire rope with a high strength to weight ratio, low torque, and excellent operating characteristics that can outperform any wire rope related product currently available on the market. The results are longer field service, increased corrosion protection, less maintenance, and smaller diameter wire ropes in service applications. All of these characteristics are beneficial to the owner/operator of the movable structure. The paper will discuss the mechanical properties and benefits of improved wire rope constructions verses those currently specified for use in the AASHTO Standard Specification for Movable Bridges and the AREMA Manual for Railway Engineering. The use of new technology in Vertical Lift Bridge applications is non-existent in the United States. The European community utilizes wire rope products as described above to transform movable structures into iconic bridges. AASHTO and AREMA have made recent progress in adopting new wire rope standards however the ever changing developments in wire rope will require more change over time. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Bridge Structures IOS Press

The advancement of wire rope in movable bridges

Klein, T.W.
Bridge Structures , Volume 7 (2) – Jan 1, 2011
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Publisher
IOS Press
Copyright
Copyright © 2011 by IOS Press, Inc
ISSN
1573-2487
eISSN
1744-8999
DOI
10.3233/BRS-2011-023
Publisher site
See Article on Publisher Site

Abstract

The paper describes the recent developments made in the design and manufacturing of wire rope for specific use as Counterweight and Operation ropes on vertical lift bridges. New wire rope materials and designs provide increased strengths and improved mechanical properties allowing designers and engineers to take full advantage of the material strengths available. These developments involve high tenacity synthetic materials protected by high strength corrosion resistant carbon steel wires. This provides a hybrid wire rope with a high strength to weight ratio, low torque, and excellent operating characteristics that can outperform any wire rope related product currently available on the market. The results are longer field service, increased corrosion protection, less maintenance, and smaller diameter wire ropes in service applications. All of these characteristics are beneficial to the owner/operator of the movable structure. The paper will discuss the mechanical properties and benefits of improved wire rope constructions verses those currently specified for use in the AASHTO Standard Specification for Movable Bridges and the AREMA Manual for Railway Engineering. The use of new technology in Vertical Lift Bridge applications is non-existent in the United States. The European community utilizes wire rope products as described above to transform movable structures into iconic bridges. AASHTO and AREMA have made recent progress in adopting new wire rope standards however the ever changing developments in wire rope will require more change over time.

Journal

Bridge Structures – IOS Press

Published: Jan 1, 2011

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