Synthesis of concrete bridge piles prestressed with CFRP systems.

Details

• Creators:
  Belarbi, Abdeldjelil ; Dawood, Mina ; Bowman, Matthias ; Mirmiran, Amir
• Corporate Creators:
  University of Houston. Dept. of Civil and Environmental Engineering ; University of Texas at Tyler
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration
• Publication/ Report Number:
  FHWA/TX-17/0-6917-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Texas
• Corporate Publisher:
  Texas. Dept. of Transportation. Research and Technology Implementation Office
• Abstract:
  The Texas Department of Transportation frequently constructs prestressed concrete piles for use in bridge
  
  foundations. Such prestressed concrete piles are typically built with steel strands that are highly susceptible to
  
  environmental degradation and corrosion in harsh marine environments. The department currently employs many
  
  techniques to combat these structural degradation, but these measures address only the symptom- not the root cause.
  
  It would therefore be advantageous to the Agency to adopt a corrosion-resistant reinforcing material. It was then the
  
  aim of this research to assess the feasibility of employing carbon fiber-reinforced polymers (CFRP’s) into TxDOT
  
  infrastructure through comprehensive literature synthesis, investigations in the field and interviews with design
  
  professionals, and a comparative analysis of mechanics and economics. The findings of these studies illustrated the
  
  feasibility of CFRP adoption when considered over the entire lifespan of a bridge structure, relying on CFRP’s
  
  excellent environmental durability to mitigate the more expensive upfront costs. Incorporating CFRP prestressing
  
  strands into bridge piles, especially in aggressive, corrosive environments, has the potential to not only increase the
  
  overall lifespan of the structure, but requires far less departmental maintenance, saving a large sum of repair costs
  
  and design time. It is therefore the opinion of the Research Team that some important issues must be better
  
  understood and quantified, such as additional drivability concerns and splicing information, before the large-scale
  
  implementation of CFRP-prestressed piles is undertaken by the Department.
  
  
• Format:
  PDF
• Funding:
  PS 16-350
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:a0172857cc89dffe00a5afe015b34634971a8d453eda762d4f395a41c5f98c57
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/32480/dot_32480_DS1.pdf
• File Type:
  [PDF - 2.74 MB ]