Experimental investigation of the creep behavior and fatigue resistance of a hybrid FRP-concrete bridge deck

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Abstract

A summary of an ongoing experimental investigation of the creep behavior and fatigue resistance of a hybrid FRP-Concrete (HFRPC) deck and steel girder bridge system is presented. The test specimen is a 3/4 scale bridge model consisting of a hybrid FRP-Concrete bridge deck connected to three supporting steel girders through a number of shear stud clusters. Creep testing was performed by subjecting the HFRPC deck and steel girder system to a sustained load (51 days) approximately equal to the design tandem load. After 51 days the load was removed and the vertical displacement of the bridge system monitored for an additional 22 days to identify elastic and creep recovery in both the HFRPC deck and the global bridge system. From the experimental results, creep behavior was evident in the HFRPC deck although this behavior had negligible effect on the creep behavior of the global HFRPC deck and steel girder system. For the fatigue testing program, the HFRPC deck and steel girder system was subjected to 2 million cycles at a frequency of 2 Hz to a peak load of approximately 1.33 times the scaled design tandem load. Sample results from the fatigue test could not be presented because the testing had not concluded at the time of writing this paper.

Original languageEnglish (US)
JournalInternational SAMPE Symposium and Exhibition (Proceedings)
Volume52
StatePublished - Dec 18 2008
EventSAMPE 2008 - 52nd International SAMPE Symposium - Material and Process Innovations: Changing our World - Long Beach, CA, United States
Duration: May 18 2008May 22 2008

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Bridge decks
Concrete bridges
Steel
Creep
Fatigue of materials
Concretes
Creep testing
Fatigue testing
Beams and girders
Recovery
Testing

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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title = "Experimental investigation of the creep behavior and fatigue resistance of a hybrid FRP-concrete bridge deck",
abstract = "A summary of an ongoing experimental investigation of the creep behavior and fatigue resistance of a hybrid FRP-Concrete (HFRPC) deck and steel girder bridge system is presented. The test specimen is a 3/4 scale bridge model consisting of a hybrid FRP-Concrete bridge deck connected to three supporting steel girders through a number of shear stud clusters. Creep testing was performed by subjecting the HFRPC deck and steel girder system to a sustained load (51 days) approximately equal to the design tandem load. After 51 days the load was removed and the vertical displacement of the bridge system monitored for an additional 22 days to identify elastic and creep recovery in both the HFRPC deck and the global bridge system. From the experimental results, creep behavior was evident in the HFRPC deck although this behavior had negligible effect on the creep behavior of the global HFRPC deck and steel girder system. For the fatigue testing program, the HFRPC deck and steel girder system was subjected to 2 million cycles at a frequency of 2 Hz to a peak load of approximately 1.33 times the scaled design tandem load. Sample results from the fatigue test could not be presented because the testing had not concluded at the time of writing this paper.",
author = "Amjad Aref and Warn, {Gordon Patrick}",
year = "2008",
month = "12",
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journal = "International SAMPE Symposium and Exhibition",
issn = "0891-0138",
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T1 - Experimental investigation of the creep behavior and fatigue resistance of a hybrid FRP-concrete bridge deck

AU - Aref, Amjad

AU - Warn, Gordon Patrick

PY - 2008/12/18

Y1 - 2008/12/18

N2 - A summary of an ongoing experimental investigation of the creep behavior and fatigue resistance of a hybrid FRP-Concrete (HFRPC) deck and steel girder bridge system is presented. The test specimen is a 3/4 scale bridge model consisting of a hybrid FRP-Concrete bridge deck connected to three supporting steel girders through a number of shear stud clusters. Creep testing was performed by subjecting the HFRPC deck and steel girder system to a sustained load (51 days) approximately equal to the design tandem load. After 51 days the load was removed and the vertical displacement of the bridge system monitored for an additional 22 days to identify elastic and creep recovery in both the HFRPC deck and the global bridge system. From the experimental results, creep behavior was evident in the HFRPC deck although this behavior had negligible effect on the creep behavior of the global HFRPC deck and steel girder system. For the fatigue testing program, the HFRPC deck and steel girder system was subjected to 2 million cycles at a frequency of 2 Hz to a peak load of approximately 1.33 times the scaled design tandem load. Sample results from the fatigue test could not be presented because the testing had not concluded at the time of writing this paper.

AB - A summary of an ongoing experimental investigation of the creep behavior and fatigue resistance of a hybrid FRP-Concrete (HFRPC) deck and steel girder bridge system is presented. The test specimen is a 3/4 scale bridge model consisting of a hybrid FRP-Concrete bridge deck connected to three supporting steel girders through a number of shear stud clusters. Creep testing was performed by subjecting the HFRPC deck and steel girder system to a sustained load (51 days) approximately equal to the design tandem load. After 51 days the load was removed and the vertical displacement of the bridge system monitored for an additional 22 days to identify elastic and creep recovery in both the HFRPC deck and the global bridge system. From the experimental results, creep behavior was evident in the HFRPC deck although this behavior had negligible effect on the creep behavior of the global HFRPC deck and steel girder system. For the fatigue testing program, the HFRPC deck and steel girder system was subjected to 2 million cycles at a frequency of 2 Hz to a peak load of approximately 1.33 times the scaled design tandem load. Sample results from the fatigue test could not be presented because the testing had not concluded at the time of writing this paper.

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JO - International SAMPE Symposium and Exhibition

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