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Joints: the weak link in bridge structures and lifecycles

  • Yanev, Bojidar (Bridge Inspection & Management, Department of Transportation)
  • Received : 2014.09.24
  • Accepted : 2015.02.15
  • Published : 2015.03.25
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Abstract

The condition of the vehicular bridge network in New York City, as represented by ratings obtained during biennial inspections is reviewed over a period of three decades. Concurrently, the bridges comprising the network are considered as networks of structural elements whose condition defines the overall bridge condition according to New York State assumptions. A knowledge-based matrix of assessments is used in order to determine each element's vulnerability and impact within the network of an individual structure and the network of City bridges. In both networks expansion deck joints emerge as the weak link. Typical joint failures are illustrated. Bridge management options for maintenance, preservation, rehabilitation and replacement are examined in the context of joint performance.

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References

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