Cracking and deflection behavior of one-way parking garage slabs reinforced with CFRP bars

S. El-Gamal, B. Benmokrane, E. El-Salakawy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper describes a laboratory investigation on the flexural behavior of carbon fiber reinforced polymer (CFRP)-reinforced concrete slab specimens extracted from Laurier-Taché Parking Garage (National Capital Region- Canada) after being in service field conditions for about eight years (1997-2005). A total of four specimens, measuring 3 m long × 1 m wide × 0.19 m deep each, are extracted from the parking garage and then tested in flexure under four-point bending set-up. In addition, five FRP bar samples are extracted from the slabs and tested in tension to evaluate the strength or stiffness degradation of the CFRP bars, if any. The test results are presented in terms of deflection, crack widths, strains in concrete and reinforcement, ultimate capacity, and mode of failure. Based on the test results, the current provisions, provided by different FRP codes and design guidelines, are evaluated. The results showed that the CFRP bars as well as the CFRP-reinforced concrete slabs have not been adversely affected after being in service for eight years.

Original languageEnglish
Title of host publicationAmerican Concrete Institute, ACI Special Publication
Pages33-51
Number of pages19
Edition264 SP
Publication statusPublished - 2009
EventACI Spring 2009 Convention - San Antonio, TX, United States
Duration: Mar 15 2009Mar 19 2009

Other

OtherACI Spring 2009 Convention
CountryUnited States
CitySan Antonio, TX
Period3/15/093/19/09

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Keywords

  • Composite materials
  • Concrete slabs
  • Cracking
  • Deflection
  • Experimental
  • Fiber-reinforced polymer (FRP)
  • Flexure

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

Cite this

El-Gamal, S., Benmokrane, B., & El-Salakawy, E. (2009). Cracking and deflection behavior of one-way parking garage slabs reinforced with CFRP bars. In American Concrete Institute, ACI Special Publication (264 SP ed., pp. 33-51)