Repairing/strengthening of bridges with post-tensioned FRP materials and performance evaluation : [tech summary].

Details

• Creators:
  Cai, C.S. ; Xia, Miao
• Corporate Creators:
  Louisiana Transportation Research Center
• Subject/TRT Terms:
  • Bridges
  • Rehabilitation (Maintenance)
  • Fiber composites
  • Fiber reinforced polymers
  • Posttensioning
  • Girders
  • Flexural strength
  • Mechanical properties
  • Finite element method
• Publication/ Report Number:
  State Project No. 736-99-1438 ; LTRC Project No. 07-3ST
• Resource Type:
  Brief
• Geographical Coverage:
  Louisiana
• Corporate Publisher:
  Louisiana Transportation Research Center
• Abstract:
  One of the challenges that transportation agencies are facing is keeping bridges in good condition during their ; service life. Numerous bridges are classifi ed as structurally and/or functionally defi cient in the country. In the ; state of Louisiana, 4,591 bridges or 34 percent of the total 13,426 bridges are classifi ed as substandard. Load ; capacity degradation, increased gross vehicle weight, and increasing traffi c demand lead to the defi ciencies. ; One of the most eff ective ways to solve the problem is to use composite materials to strengthen existing ; bridges. As rapidly developed over the past several decades, diff erent kinds of composite fi ber reinforced ; polymers (FRP) have been regarded as one of the best solutions to several problems associated with ; transportation and civil engineering infrastructures. Some of the major benefi ts of FRP include its high ; strength to weight ratio, high fatigue endurance, excellent corrosion resistance, low thermal expansion, and ; the ease of fabrication, manufacturing, handling, and installation.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/29420/dot_29420_DS1.pdf
• File Type:
  [PDF - 125.07 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:99553138b45c6b8ce636fb7c85fac33683a2320c403244cd0249d824c0b65852