Research notes : repairing cracked bridges with plastic.

Details

• Alternative Title:
  Repairing cracked bridges with plastic.
• Corporate Creators:
  Oregon. Dept. of Transportation. Research Unit
• Subject/TRT Terms:
  Beams Cracking Fiber Reinforced Polymers Girders Laboratory Tests Maintenance Reinforced Concrete Bridges Strengthening (Maintenance)
• Publication/ Report Number:
  RSN 07-01
• Resource Type:
  Tech Report
• Geographical Coverage:
  Oregon
• Corporate Publisher:
  Oregon. Dept. of Transportation. Research Unit
• Abstract:
  Oregon has many reinforced concrete bridges built from the late 40s to the early 60s that now exhibit diagonal cracks in the concrete girders. The general assumption is that the load carrying capacity of the concrete and therefore the bridge is reduced because of the cracks. Diagonal cracking is a concern to engineers because the cracks may - a type of distress that leads to failure without any further warning. As a result, Oregon has established a strategy to strengthen or replace cracked bridges that require action.
  
  Fiber reinforced polymer composites (FRP) attached to the concrete surface with adhesive is one option that can be employed for strengthening. The advantage of FRP strengthening is that it can be accomplished quickly with minimal traffic disruption. However, the technique is fairly new and has not been thoroughly investigated for strengthening girders with diagonal cracks.
  
  
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:fc9cbe9c15523bb72fd491741954076845c5370bd699d00fadca0194ba929e67d6bec0b17a3a4eb4214140dac82fb30586b8f546463f917104a50cea6deffea2
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/22566/dot_22566_DS1.pdf
• File Type:
  [PDF - 1.03 MB ]