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- Title
Behaviour of steel reinforced polymer (SRP) strengthened RC members under blast load.
- Authors
Carriere, M.; Heffernan, P. J.; Wight, R. G.; Braimah, A.
- Abstract
During the past decade, significant research has been carried out on the strengthening of reinforced concrete (RC) slabs, beams, and columns using externally bonded carbon fibre reinforced polymer (CFRP) sheets. Steel reinforced polymer (SRP) sheets have recently been proposed as an alternative to CFRP to strengthen reinforced concrete beams. This paper reports experimental and numerical results of RC beams and beam-columns transversely wrapped with SRP and tested under blast load. A total of 10 scaled RC members were tested at a variety of blast wave intensities. Detailed observations are reported and validated against numerical models created in AUTODYN for the unstrengthened RC members. The SRP wraps were resilient in the near-field blast range and enhanced the ductility of the concrete likely through enhanced confinement. Member capacity could be increased by the wraps in failure modes dominated by concrete crushing. AUTODYN appears able to reasonably predict the behaviour of the RC members when loaded by blast.
- Subjects
BLAST damage to buildings; REINFORCED concrete; CARBON fibers; CONCRETE beams; STRENGTH of materials; CONSTRUCTION materials; POLYMER-impregnated concrete
- Publication
Canadian Journal of Civil Engineering, 2009, Vol 36, Issue 8, p1356
- ISSN
0315-1468
- Publication type
Article
- DOI
10.1139/L09-053