IMPACT LOADING OF CONCRETE BEAMS EXTERNALLY STRENGTHENED WITH CFRP LAMINATES
This paper presents the test results of four 8 meter beams externally strengthened for flexure, two with carbon fiber reinforced polymer (CFRP) laminates and two with steel plates. Impact loading was induced by lifting one end of the simply supported beams and dropping it from given heights. The strain rates induced in the CFRP laminates were at least three orders of magnitude greater than the strain rates used for testing CFRP laminate coupons in tension. Comparisons are made between the dynamic impact behavior of the beams strengthened with CFRP laminates and steel plates, and the behavior of both beam types is modeled using an equation of motion. The beams externally strengthened with CFRP laminates performed well under impact loading, although they could not provide the same energy absorption as the beams externally strengthened with steel plates. Additional anchoring, at least at the ends of the CFRP laminates, would improve the impact resistance of these beams.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/10900268
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Corporate Authors:
American Society of Civil Engineers
1801 Alexander Bell Drive
Reston, VA United States 20191-4400 -
Authors:
- Erki, M A
- MEIER, U
- Publication Date: 1999-8
Language
- English
Media Info
- Features: Figures; References;
- Pagination: p. 117-124
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Serial:
- Journal of Composites for Construction
- Volume: 3
- Issue Number: 3
- Publisher: American Society of Civil Engineers
- ISSN: 1090-0268
- EISSN: 1943-5614
- Serial URL: http://ascelibrary.org/journal/jccof2
Subject/Index Terms
- TRT Terms: Beams; Carbon fibers; Fiber reinforced concrete; Impact loads; Laminates; Mechanical strain
- Subject Areas: Bridges and other structures; Construction; Highways; I53: Construction of Bridges and Retaining Walls;
Filing Info
- Accession Number: 00768088
- Record Type: Publication
- Files: TRIS
- Created Date: Aug 4 1999 12:00AM