Specification for galvanized steel wire for armouring submarine cables

Suspension-bridge cables are constructed from strands of galvanized steel wire. They are failure-critical structural members, so a fundamental understanding of their mechanics is imminently important in quantifying suspension bridge safety. The load-carrying capabilities of such strands after local wire failures have been the subject of many theoretical studies utilizing analytical equations and finite-element analysis. Little experimental data, however, exists to validate these models.Over the past five years we have developed a methodology for measuring stress/strain transfer within parallel wire strands of suspension bridge cables using neutron diffraction [1,2]. In this paper we describe the design and verification of parallel cable strands used in our studies. We describe the neutron diffraction strain measurements performed on standard 7-wire and expanded 19-wire models in various configurations at both the Los Alamos National Laboratory Spectrometer for Materials Research at Temperature and Stress (LANL SMARTS) and at the Oak Ridge National Laboratory VULCAN Engineering Materials Diffractometer (ORNL VULCAN). Particular attention is placed on the challenges of aligning and measuring multibody systems with high strain gradients at body-to-body contact points.

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Specification for Hardware Cloth (Woven or Welded Galvanized Steel Wire Fabric)

10.1520/a0740-21 ◽

2021 ◽

Author(s):

Keyword(s):

Steel Wire ◽

Galvanized Steel ◽

Hardware Cloth

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Timber Pole Space Frames

International Journal of Space Structures ◽

10.1177/026635118700200202 ◽

1987 ◽

Vol 2 (2) ◽

pp. 77-86 ◽

Cited By ~ 3

Author(s):

Pieter Huybers

Keyword(s):

Developing Countries ◽

The Netherlands ◽

Double Layer ◽

Steel Wire ◽

Galvanized Steel ◽

Shrinkage Cracks ◽

Space Frames ◽

University Of Technology ◽

Engineering Department ◽

Under Construction

Timber poles are not often used for structural purposes in building, although they are a cheap material with good mechanical qualities. This is due to the fact that the poles often suffer from shrinkage cracks, which makes it difficult to transfer the load from one element to another in a way that is structurally sound. To overcome this particular problem, in the Civil Engineering Department of the Delft University of Technology a manually operated tool has been developed with which strong and tight lacings of galvanized steel wire can be strung around the poles in order to keep them together. This principle has been applied in spatial-type structures, where larger numbers of identical, relatively thin, poles of 10 cm diameter are interconnected to form double-layer grids. According to this principle a few prototype structures have been built and test-loaded, including the load-bearing frames of two agricultural buildings, one at Lelystad in The Netherlands and one at Winchester in England. A few others are under construction. The tool was originally designed for use in developing countries. For other countries a more industrialized way of producing the laced connections is considered.

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