DYNAMIC BEHAVIOR OF SLAB REINFORCED WITH FRP BARS AND STRENGTH WITH CARBON SHEET

Authors

  • Graduate MSc. student, Eman Hibtallah Civil Engineering Department, Mustansiriyah University, Iraq.
  • Asst. Prof., Mutaz K. Madlum Civil Engineering Department, Mustansiriyah University, Iraq.

DOI:

https://doi.org/10.30572/2018/KJE/130104

Abstract

Reinforced concrete slabs are common structural parts that may subjected to impact loads plus static loads. Reinforced concrete structures subjected to harsh environments in some time and because of the high corrosion resistance of Fiber Reinforced Polymer (FRP) bars; can used as a substitute for traditional steel. Up to failure, FRP bars behave in a linear-elastic manner without yielding (brittle behavior), which necessitates a solution. Recently, there has been a proposed external bonding of Carbon Fiber Reinforced Polymer (CFRP) sheet on the tension side of the slab to strengthen it. In this study, the number of CFRP sheet layers (one or two) and their configuration (covering the entire surface or only a portion of it) explored. Five (1550×1550×150) mm concrete slabs support all four corners of each one with simple support and reinforced with Glass Fiber Reinforce Polymer (GFRP) bars casted. Four of them externally bonded with CFRP sheets. All slabs tested under impact loads by dropping a 150kg mass from a height of 5m until cracks appeared. Displacement-time, strain-time, reaction force-time, and acceleration-time explored and compared between slabs with various configurations. The results show that increasing the layer number of CFRP on the tension side of the slab develops impact resistance by delaying the appearance of cracks until third blow. In general, slabs with totally bottom CFRP layers provide better performance than other configurations.

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Author Biographies

Graduate MSc. student, Eman Hibtallah, Civil Engineering Department, Mustansiriyah University, Iraq.

Asst. Prof., Mutaz K. Madlum, Civil Engineering Department, Mustansiriyah University, Iraq.

References

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Published

2022-01-15

How to Cite

Hibtallah, Eman, and Mutaz Madlum. “DYNAMIC BEHAVIOR OF SLAB REINFORCED WITH FRP BARS AND STRENGTH WITH CARBON SHEET”. Kufa Journal of Engineering, vol. 13, no. 1, Jan. 2022, pp. 64-81, doi:10.30572/2018/KJE/130104.