Computers and Concrete

  • 제3권4호
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  • Pages.261-284
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  • 2006
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Effect of axial load on flexural behaviour of cyclically loaded RC columns

  • Au, F.T.K. (Department of Civil Engineering, The University of Hong Kong) ;
  • Bai, Z.Z. (Department of Civil Engineering, The University of Hong Kong)
  • 투고 : 2006.07.21
  • 심사 : 2006.08.21
  • 발행 : 2006.05.25
⟨ 이전 논문 다음 논문 ⟩

초록

The flexural behaviour of symmetrically reinforced concrete (RC) columns cast of normal- and high-strength concrete under both monotonic and cyclic loading is studied based on an analytical procedure, which employs the actual stress-strain curves and takes into account the stress-path dependence of concrete and steel reinforcement. The analysis is particularly extended into the post-peak stage with large inelastic deformation at various applied axial load level. The effect of axial load on their complete flexural behaviour is then identified based on the results obtained. The axial load is found to have fairly large effect on the flexural behaviour of RC columns under both monotonic and cyclic loading. Such effects are discussed through examination of various aspects including the moment-curvature relationship, moment capacity, flexural ductility, variation of neutral axis depth and steel stress.

키워드

참고문헌

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피인용 문헌

  1. Effect of small axial force on flexural ductility design of high-strength concrete beams vol.24, pp.11, 2015, https://doi.org/10.1002/tal.1209
  2. Flexural ductility design of high-strength concrete columns vol.22, pp.1, 2013, https://doi.org/10.1002/tal.662
  3. Effects of strain hardening of reinforcement on flexural strength and ductility of reinforced concrete columns vol.20, pp.7, 2011, https://doi.org/10.1002/tal.554
  4. Recent developments in optimal reinforcement of RC beam and column sections vol.33, pp.4, 2011, https://doi.org/10.1016/j.engstruct.2010.12.038
  5. Maximum axial load level and minimum confinement for limited ductility design of high-strength concrete columns vol.6, pp.5, 2006, https://doi.org/10.12989/cac.2009.6.5.357
  6. Numerical analysis of under-designed reinforced concrete beam-column joints under cyclic loading vol.7, pp.3, 2006, https://doi.org/10.12989/cac.2010.7.3.203
  7. Maximum concrete stress developed in unconfined flexural RC members vol.8, pp.2, 2006, https://doi.org/10.12989/cac.2011.8.2.207
  8. Minimum deformability design of high-strength concrete beams in non-seismic regions vol.8, pp.4, 2006, https://doi.org/10.12989/cac.2011.8.4.445
  9. Effect of confinement on flexural ductility design of concrete beams vol.20, pp.2, 2006, https://doi.org/10.12989/cac.2017.20.2.129
  10. Comparison of displacement capacity of reinforced concrete columns with seismic codes vol.8, pp.4, 2006, https://doi.org/10.12989/acc.2019.8.4.295
  11. Improving the seismic performance of reinforced concrete frames using an innovative metallic-shear damper vol.28, pp.3, 2021, https://doi.org/10.12989/cac.2021.28.3.275