Smart Structures and Systems

  • 제5권4호
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  • Pages.443-455
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  • 2009
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  • 1738-1584(pISSN)
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  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
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Damage characterization of beam-column joints reinforced with GFRP under reversed cyclic loading

  • Said, A.M. (Dept. of Civil & Environmental Engineering, University of Nevada)
  • 투고 : 2008.09.20
  • 심사 : 2008.10.17
  • 발행 : 2009.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

The use of fiber reinforced polymer (FRP) reinforcement in concrete structures has been on the rise due to its advantages over conventional steel reinforcement such as corrosion. Reinforcing steel corrosion has been the primary cause of deterioration of reinforced concrete (RC) structures, resulting in tremendous annual repair costs. One application of FRP reinforcement to be further explored is its use in RC frames. Nonetheless, due to FRP's inherently elastic behavior, FRP-reinforced (FRP-RC) members exhibit low ductility and energy dissipation as well as different damage mechanisms. Furthermore, current design standards for FRP-RC structures do not address seismic design in which the beam-column joint is a key issue. During an earthquake, the safety of beam-column joints is essential to the whole structure integrity. Thus, research is needed to gain better understanding of the behavior of FRP-RC structures and their damage mechanisms under seismic loading. In this study, two full-scale beam-column joint specimens reinforced with steel and GFRP configurations were tested under quasi-static loading. The control steel-reinforced specimen was detailed according to current design code provisions. The GFRP-RC specimen was detailed in a similar scheme. The damage in the two specimens is characterized to compare their performance under simulated seismic loading.

키워드

참고문헌

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피인용 문헌

  1. Experimental investigation on joints between steel-reinforced concrete T-shaped column and reinforced concrete beam under bidirectional low-cyclic reversed loading vol.20, pp.3, 2017, https://doi.org/10.1177/1369433216653841
  2. Structural performance of steel-truss-reinforced composite joints under cyclic loading vol.171, pp.2, 2018, https://doi.org/10.1680/jstbu.16.00188
  3. Seismic behaviour of repaired superelastic shape memory alloy reinforced concrete beam-column joint vol.7, pp.5, 2011, https://doi.org/10.12989/sss.2011.7.5.329
  4. Seismic Performances of SRC Special-Shaped Columns and RC Beam Joints Under Double-Direction Low-Cyclic Reversed Loading vol.8, pp.None, 2009, https://doi.org/10.3389/fmats.2021.761376