Elimination of deck joints using a corrosion resistant FRP appproach.

Details

• Creators:
  Li, Guoqiang ; Saber, Aziz
• Corporate Creators:
  Southern University and A & M College. Dept. of Mechanical Engineering
• Corporate Contributors:
  Louisiana. Dept. of Transportation and Development ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Bridge decks
  • Jointless bridges
  • Fiber reinforced polymers
  • Bridges--Floors--Design and construction
  • Fiber-reinforced plastics
  • Fiber cement
• Publication/ Report Number:
  FHWA/LA.09/443
• Resource Type:
  Tech Report
• Geographical Coverage:
  Louisiana
• Edition:
  Final report; Mar. 2006-Mar. 2009.
• Corporate Publisher:
  Louisiana Transportation Research Center
• Abstract:
  The research presented herein describes the development of durable link slabs for jointless bridge decks based on ; using a fiber reinforced polymer (FRP) grid for reinforcement. Specifically the ductility of the FRP material was ; utilized to accommodate bridge deck deformations imposed by girder deflection, concrete shrinkage, and ; temperature variations. It would also provide a cost-effective solution to a number of deterioration problems ; associated with bridge deck joints. ; The structural behavior of two types of FRP grid reinforced concrete slabs was investigated. A total of 11 slabs ; were prepared and tested. Three slabs were made of plain concrete as controls. Three slabs were reinforced by ; commercially available FRP grids. Three slabs were reinforced by lab-fabricated FRP grids. The remaining two ; slabs were the pure grid panel (one from commercial source and the other fabricated in our lab). All the slabs ; were tested using a three-point bending test configuration. Physical properties such as surface abrasion, ; shrinkage, and coefficient of thermal expansion were also tested. ; The design concept of link slabs was then examined to form the basis of design for FRP grid link slabs. ; Improved design of FRP grid link slab/concrete deck slab interface was confirmed in the numerical analysis. The ; mechanical properties between the FRP grid and concrete were evaluated. The behavior of the link slab was ; investigated and confirmed for durability.
  More +
• Format:
  PDF
• Funding:
  LTRC Project No. 06-2ST ; State Project No. 736-99-1391
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/18050/dot_18050_DS1.pdf
• File Type:
  [PDF - 2.16 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:8c747c652d2eab2b8a2edee19be48705cf381adb891322dbc4107e623e18e459