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    Forensic Examination of a Noncomposite Adjacent Precast Prestressed Concrete Box Beam Bridge

    Source: Journal of Bridge Engineering:;2010:;Volume ( 015 ):;issue: 004
    Author:
    Clay Naito
    ,
    Richard Sause
    ,
    Ian Hodgson
    ,
    Stephen Pessiki
    ,
    Thomas Macioce
    DOI: 10.1061/(ASCE)BE.1943-5592.0000110
    Publisher: American Society of Civil Engineers
    Abstract: On the evening of December 27, 2005 the fascia beam supporting the east side parapet wall of the third span of the Lake View Drive Bridge failed under the action of dead load. To gain insight into the potential causes of the failure a series of forensic analyses were conducted on the beams decommissioned from the bridge. The study correlates external observations of surface condition with internal chloride profile, depth of carbonation, and existing corrosion. The forensic investigation indicated that strand cover was reduced due to the construction methods of the time. The chloride level in the concrete at the lower layer of strands was high enough that corrosion would be expected. Chloride attack was identified to have come from the leakage of water between beams from the bridge deck surface above. Based on the research findings recommendations are made for visual inspection, and guidelines are provided for condition rating of noncomposite prestressed concrete box beam bridges.
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      Forensic Examination of a Noncomposite Adjacent Precast Prestressed Concrete Box Beam Bridge

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    http://yetl.yabesh.ir/yetl1/handle/yetl/56637
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    contributor authorClay Naito
    contributor authorRichard Sause
    contributor authorIan Hodgson
    contributor authorStephen Pessiki
    contributor authorThomas Macioce
    date accessioned2017-05-08T21:34:52Z
    date available2017-05-08T21:34:52Z
    date copyrightJuly 2010
    date issued2010
    identifier other%28asce%29be%2E1943-5592%2E0000112.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/56637
    description abstractOn the evening of December 27, 2005 the fascia beam supporting the east side parapet wall of the third span of the Lake View Drive Bridge failed under the action of dead load. To gain insight into the potential causes of the failure a series of forensic analyses were conducted on the beams decommissioned from the bridge. The study correlates external observations of surface condition with internal chloride profile, depth of carbonation, and existing corrosion. The forensic investigation indicated that strand cover was reduced due to the construction methods of the time. The chloride level in the concrete at the lower layer of strands was high enough that corrosion would be expected. Chloride attack was identified to have come from the leakage of water between beams from the bridge deck surface above. Based on the research findings recommendations are made for visual inspection, and guidelines are provided for condition rating of noncomposite prestressed concrete box beam bridges.
    publisherAmerican Society of Civil Engineers
    titleForensic Examination of a Noncomposite Adjacent Precast Prestressed Concrete Box Beam Bridge
    typeJournal Paper
    journal volume15
    journal issue4
    journal titleJournal of Bridge Engineering
    identifier doi10.1061/(ASCE)BE.1943-5592.0000110
    treeJournal of Bridge Engineering:;2010:;Volume ( 015 ):;issue: 004
    contenttypeFulltext
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