REHABILITATION AND STRENGTHENING OF GLULAM STRINGERS FOR BRIDGE SUPERSTRUCTURES

This paper discusses the investigation of a hybridized system which uses fiber reinforced plastic wraps to encase glue-laminated timber beams as a means of strengthening and rehabilitating timber bridge stringers. The three types of fiber systems used in this study were: (1) a unidirectional carbon fiber sheet, (2) a non-woven glass cloth, and (3) a woven glass cloth. An epoxy based adhesive was used for application of all three fiber systems. Five wrapped beams and three non-wrapped beams were tested in this study. The five composite beams were wrapped with different wrap configurations to evaluate their effectiveness in strength and stiffness enhancements as well as modes of failure. Another area of investigation was how the use of the composite wraps with lengths that did not span the entire length of the beams performed. A discussion of the experimental evaluation of the beams and the procedure followed to wrap the beams is presented.

• Corporate Authors:

  University of Arizona, Tucson

  Department of Civil Engineering and Engineering Mechanics
  1209 E 2nd Street
  Tucson, AZ  United States  85721-0072
• Authors:
  • Sonti, S S
  • GangaRao, H V S
  • Superfesky, M C
• Conference:
  • First International Conference on Composites in Infrastructure
  • Location: Tucson, Arizona
  • Date: 1996-1-15 to 1996-1-17
• Publication Date: 1996-1

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 800-813

Subject/Index Terms

• TRT Terms: Beams; Bridge substructures; Carbon fibers; Failure; Fiber reinforced plastics; Glass fibers; Glue; Laminated wood; Rehabilitation; Stiffness; Strength of materials; Stringers; Structural strengthening; Timber
• Subject Areas: Geotechnology; Highways; Materials; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 00762511
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 16 1999 12:00AM