Girder–Deck Interface: Partial Debonding, Deck Replacement, and Composite Action
Issue Date
2019-01Author
Li, Chaohui
Lequesne, Rémy D.
Matamoros, Adolfo
Publisher
American Society of Civil Engineers
Type
Article
Article Version
Scholarly/refereed, author accepted manuscript
Rights
© 2018 American Society of Civil Engineers.
Metadata
Show full item recordAbstract
Results are reported from tests of three precast, prestressed concrete girders under fatigue-type cyclic and monotonic loading conducted after deck removal and replacement. Although deck demolition altered the top surface of the girders, the girder–deck interfaces exhibited shear strengths greater than their nominal strength (based on the 2012 AASHTO LRFD Specification) after 2 × 106 cycles of loading to 45 and 30% of their nominal strength for troweled and roughened interfaces, respectively. A partially debonded detail was used for two of the girders to protect the girder top flange, which was wide and thin, during deck demolition. The roofing felt used to debond the girder–deck interface over the flanges reduced the effort required for deck removal by 65%, compared with the typical detail, eliminated chipping hammer–induced damage to the girder flanges, and still resulted in sustained composite action under 2 × 106 cycles of loading. The width of the bonded interface had little effect on girder stiffness and no observed effect on the width of deck effective in bending.
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Citation
Li, C., Lequesne, R.D., Matamoros, A., (2019). Girder–Deck Interface: Partial Debonding, Deck Replacement, and Composite Action. Journal of Bridge Engineering, Volume 24 Issue 1
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