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 Bridges--Floors--Design And Construction Bridges--Floors--Mathematical Models Fiber-reinforced Plastics--Mathematical Models Fiber Reinforced Materials Sandwich Construction--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.
  
  
• Format:
  PDF
• Funding:
  C1607
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:4137981d681d1f6866a1237b0e6df8543a41cd429a7a0566d3433a27945caa4c
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/16819/dot_16819_DS1.pdf
• File Type:
  [PDF - 7.69 MB ]