Assessment and Repair of Prestressed Bridge Girders Subjected to Over-Height Truck Impacts [Research Summary]

Details

• Creators:
  ElGawady, Mohamed ; Harper, Jennifer
• Corporate Creators:
  Missouri University of Science and Technology
• Corporate Contributors:
  Missouri. Department of Transportation. Construction and Materials Division ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Collisions
  • Traffic crashes
  • Prestressed concrete
  • Bridge decks
  • Girders
  • Maintenance
  • Strategic planning
  • Flexural strength
  • Static loads
  • Loads
  More +
• Publication/ Report Number:
  TR202011
• Resource Type:
  Brief
• Geographical Coverage:
  United States
• Corporate Publisher:
  Missouri. Department of Transportation. Construction and Materials Division
• Abstract:
  This comprehensive research project addresses the increasingly frequent and costly problem of over-height vehicle collisions with prestressed concrete (PC) bridge girders. The research combined full-scale experimental testing, nonlinear three-dimensional finite element modeling (FEM), and analytical methods to quantify the extent of damage, assess residual structural capacity, and evaluate repair strategies for prestressed girders subjected to lateral impact. Fourteen MoDOT Type II prestressed concrete girders (46 feet long) were subjected to 23 full-scale tests, including lateral impacts and static flexural loading. Damage scenarios ranged from minor to severe, simulating strand losses from 17% to 50%.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/86973/dot_86973_DS1.pdf
• File Type:
  [PDF - 534.60 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:882c1bdd8f5b61ec1981d8ee3a0e98f3ed9353d7e279c50560ffc8cb1cabdbf3a47b7a05d8a31e675e4ee52b157afd08507ff7c1df444b57818cd4d9f427f102