Finite element modeling approach and performance evaluation of fiber reinforced polymer sandwich bridge panels : final report.

Details

• Creators:
  Oghumu, Stanley Onyema
• Corporate Creators:
  Kansas. Dept. of Transportation. Bureau of Materials & Research
• Corporate Contributors:
  Louisiana State University (Baton Rouge, La.). Department of Civil and Environmental Engineering
• Subject/TRT Terms:
  • Bridge decks
  • Fiber reinforced materials
  • Bridges--Floors--Mathematical models
  • Bridges--Floors--Design and construction
  • Sandwich construction--Mathematical models
  • Fiber-reinforced plastics--Mathematical models
• Publication/ Report Number:
  FHWA-KS-09-3
• Resource Type:
  Tech Report
• Geographical Coverage:
  Kansas
• Edition:
  Final report; May 2006-June 2009
• Corporate Publisher:
  Kansas. Dept. of Transportation. Bureau of Materials & Research
• Abstract:
  In the United States, about 27% of the bridges are classified as structurally deficient or functionally obsolete. ; Bridge owners are continually investigating methods to effectively retrofit existing bridges, or to economically replace ; them with new ones. Modern composite materials for structural applications, at one time only in the domain of ; aerospace engineering, are increasingly making their way into civil engineering applications. In addition to retrofitting ; current concrete and steel structures using FRP sheets or plates, a great deal of work is being conducted to develop ; versatile, fully-composite structural bridge systems. ; To reduce the self-weight and also achieve the necessary stiffness, sandwich panels are usually used for bridge ; decks. However, due to the geometric complexity of the FRP sandwich, convenient methods for bridge design ; have not been developed. The present study aims at developing finite element modeling techniques for sandwich ; structures. Parametric studies are carried out with the objective of developing equivalent elastic properties, which ; would be useful parameters in design. A distinction is made between in-plane and out-of-plane behavior, and ; properties are derived accordingly. The performance of the sandwich, such as the interface stress between the flange ; and wearing surface can be evaluated. Therefore, through finite element modeling, optimization can be achieved in ; order to minimize the interface stress. The contribution of stiffness of the wearing surface to structural performance, ; a factor which is not usually accounted for in typical design procedures, is also examined. An effort is also made ; to analyze the temperature effects on the structure’s performance. A conceptual approach aimed at studying the ; thermal performance of the panel due to both uniform and gradient temperature variations is presented.
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• Format:
  PDF
• Funding:
  C1607
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/16819/dot_16819_DS1.pdf
• File Type:
  [PDF - 7.69 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:4137981d681d1f6866a1237b0e6df8543a41cd429a7a0566d3433a27945caa4c