Structural Engineering and Mechanics

  • 제25권1호
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  • Pages.75-89
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  • 2007
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Lateral force-displacement ductility relationship of non-ductile squat RC columns rehabilitated using FRP confinement

  • Galal, K. (Department of Building, Civil and Environmental Engineering, Concordia University)
  • 투고 : 2006.01.03
  • 심사 : 2006.08.09
  • 발행 : 2007.01.10
⟨ 이전 논문 다음 논문 ⟩

초록

Post-earthquake reconnaissance and experimental research indicate that squat reinforced concrete (RC) columns in existing buildings or bridge piers are vulnerable to non-ductile shear failure. Recently, several experimental studies were conducted to investigate upgrading the shear resistance capacity of such columns in order to modify their failure mode to ductile one. Among these upgrading methods is the use of fibre-reinforced polymer (FRP) jackets. One of the preferred analytical tools to simulate the response of frame structures to earthquake loading is the lumped plasticity macromodels due to their computational efficiency and reasonable accuracy. In these models, the columns' nonlinear response is lumped at its ends. The most important input data for such type of models is the element's lateral force-displacement backbone curve. The objective of this study is to verify an analytical method to predict the lateral force-displacement ductility relationship of axially and laterally loaded rectangular RC squat columns retrofitted with FRP composites. The predicted relationship showed good accuracy when compared with tests available in the literature.

키워드

참고문헌

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피인용 문헌

  1. Analytical Evaluation of Seismic Performance of RC Frames Rehabilitated Using FRP for Increased Ductility of Members vol.22, pp.5, 2008, https://doi.org/10.1061/(ASCE)0887-3828(2008)22:5(276)
  2. Influence of concurrent horizontal and vertical ground excitations on the collapse margins of non-ductile RC frame buildings vol.59, pp.4, 2016, https://doi.org/10.12989/sem.2016.59.4.653
  3. Seismic strengthening of rectangular reinforced concrete columns using fiber reinforced polymers vol.32, pp.4, 2010, https://doi.org/10.1016/j.engstruct.2009.12.021
  4. Analytical investigation of the seismic performance of RC frames rehabilitated using different rehabilitation techniques vol.31, pp.9, 2009, https://doi.org/10.1016/j.engstruct.2009.02.048
  5. Strengthening and Retrofitting of the Industries Building After Fires vol.671-674, pp.1662-8985, 2013, https://doi.org/10.4028/www.scientific.net/AMR.671-674.778
  6. Maximum axial load level and minimum confinement for limited ductility design of high-strength concrete columns vol.6, pp.5, 2007, https://doi.org/10.12989/cac.2009.6.5.357
  7. Concurrent flexural strength and deformability design of high-performance concrete beams vol.40, pp.4, 2007, https://doi.org/10.12989/sem.2011.40.4.541
  8. Numerical simulation of bridge piers with spread footings under earthquake excitation vol.16, pp.6, 2019, https://doi.org/10.12989/eas.2019.16.6.691