DOI QR코드

DOI QR Code

An algorithm for simulation of cyclic eccentrically-loaded RC columns using fixed rectangular finite elements discretization

  • Sadeghi, Kabir (Civil and Environmental Engineering Faculty, Near East University, Near East Boulevard) ;
  • Nouban, Fatemeh (Civil and Environmental Engineering Faculty, Near East University, Near East Boulevard)
  • 투고 : 2018.11.05
  • 심사 : 2018.01.22
  • 발행 : 2019.01.25

초록

In this paper, an algorithm is presented to simulate numerically the reinforced concrete (RC) columns having any geometric form of section, loaded eccentrically along one or two axes. To apply the algorithm, the columns are discretized into two macro-elements (MEs) globally and the critical sections of columns are discretized into fixed rectangular finite elements locally. A proposed triple simultaneous dichotomy convergence method is applied to find the equilibrium state in the critical section of the column considering the three strains at three corners of the critical section as the main characteristic variables. Based on the proposed algorithm a computer program has been developed for simulation of the nonlinear behavior of the eccentrically-loaded columns. A good agreement has been witnessed between the results obtained applying the proposed algorithm and the experimental test results. The simulated results indicate that the ultimate strength and stiffness of the RC columns increase with the increase in axial force value, but large axial loads reduce the ductility of the column, make it brittle, impose great loss of material, and cause early failure.

키워드

과제정보

연구 과제 주관 기관 : Ecole Centrale de Nantes, Near East University

참고문헌

  1. Abd El Fattah A.M., Rasheed, H.A. and Al-Rahmani, A.H. (2017), "Partial confinement utilization for rectangular concrete columns subjected to biaxial bending and axial compression", Int. J. Concrete Struct. Mater., 11(1), 135-149. https://doi.org/10.1007/s40069-016-0178-z
  2. Amziane, S. and Dube, J.F. (2008), "Global RC structural damage index based on the assessment of local material damage", J. Adv. Concrete Technol., 6 (3), 459-468. https://doi.org/10.3151/jact.6.459
  3. Carr, A.J. (2017), "Ruaumoko theory manual", Technical Report, Volume 1: Theory, University of Canterbury, Carr Research, New Zealand.
  4. CSI (2008), Material Stress-Strain Curves, Technical Note, Computers and Structures, Inc., California, USA.
  5. Elwan, S.K. and Omar, M.A. (2014), "Experimental behavior of eccentrically loaded RC slender columns strengthened using GFRP wrapping", Steel Compos. Struct., 17(3), 271-285. https://doi.org/10.12989/scs.2014.17.3.271
  6. Eurocode 2 (2004) Design of Concrete Structures-Part 1-1: General Rules and Rules for Buildings, European Standard (Norme Europeenne), ICS 91.010.30; 91.080.40, EN 1992-1-1 (English Version), The European Union per Regulation 305/2011, Directive 2004/18/EC.
  7. Garcia Gonzalez, J.J. (1990), "Contribution a l'etude des poteaux en beton arme soumis a un cisaillement devie alterne", Ph.D. Dissertation, University of Nantes/Ecole Centrale de Nantes, Nantes.
  8. Kang, J.W. and Lee, J. (2018), "A correction method for objective seismic damage index of reinforced concrete columns", Comput. Concrete, 21(6), 741-748. https://doi.org/10.12989/CAC.2018.21.6.741
  9. Massumi, A. and Badkoubeh, A.R. (2015), "Dimensionless analysis of composite rectangular and circular RC columns", Steel Compos. Struct., 19(2), 327-348. https://doi.org/10.12989/scs.2015.19.2.327
  10. Nigdeli, S.M., Bekdas, G., Kim, S. and Geem, Z.W. (2015), "A novel harmony search-based optimization of reinforced concrete biaxially loaded columns", Struct. Eng. Mech., 54(6), 1097-1109. https://doi.org/10.12989/sem.2015.54.6.1097
  11. Park, R. (1989), "Evaluation of ductility of structures and structural assemblages from laboratory testing", Bull. NZ Nat. Soc. Earthq. Eng., 22(3), 155-166.
  12. Peng, Ch. and Guner, S. (2018), "Direct displacement-based seismic assessment of concrete frames", Comput. Concrete, 21(4), 355-365. https://doi.org/10.12989/CAC.2018.21.4.355
  13. Pires, S.L. and Silva Maria, C.A.T. (2014), "A numerical procedure for reinforced concrete columns with a focus on stability analysis", Comput. Concrete, 14(6), 657-674. https://doi.org/10.12989/cac.2014.14.6.657
  14. Priestley, M.J.N., Calvi, M.C. and Kowalsky, M.J. (2007), "Displacement-based seismic design of structures", Istituto Universitario di Studi Superiori di Pavia, IUSS Press, Pavia.
  15. Rodrigues, E.A., Manzoli, O.L., Bitencourt, Jr. L.A.G., dos Prazeres, P.G.C. and Bittencourt, T.N. (2015), "Failure behavior modeling of slender reinforced concrete columns subjected to eccentric load", Lat. Am. J. Solid. Struct., 12(3), 520-541. https://doi.org/10.1590/1679-78251224
  16. Sadeghi, K. (2011), "Energy based structural damage index based on nonlinear numerical simulation of structures subjected to oriented lateral cyclic loading", Int. J. Civil Eng., 9(3), 155-164.
  17. Sadeghi, K. (2016), "Nonlinear-static oriented pushover analysis of reinforced concrete columns using variable oblique finite elements discretization", Int. J. Civil Eng., 14(5), 295-306. https://doi.org/10.1007/s40999-016-0045-y
  18. Sadeghi, K. and Nouban, F. (2016), "Damage quantification and fatigue of RC structures", Struct. Eng. Mech., 58(6), 1021-1044. https://doi.org/10.12989/sem.2016.58.6.1021
  19. Sadeghi, K. and Nouban, F. (2017), "Behavior modeling and damage quantification of confined concrete under cyclic loading", Struct. Eng. Mech., 61(5), 625-635. https://doi.org/10.12989/sem.2017.61.5.625
  20. Shirmohammadi, F. and Esmaeily, A. (2016), "Software for biaxial cyclic analysis of reinforced concrete columns", Comput. Concrete, 17(3), 353-386. https://doi.org/10.12989/cac.2016.17.3.353
  21. Szerszen, M.M., Szwed, A. and Nowak, A.S. (2005), "Reliability analysis for eccentrically loaded columns", ACI Struct. J., 102(5), 676-688.
  22. Tang, Z., Ma, H., Guo, J., Xie, Y. and Li, Z. (2016), "Experimental research on the propagation of plastic hinge length for multi-scale reinforced concrete columns under cyclic loading", Earthq. Struct., 11(5), 823-840. https://doi.org/10.12989/eas.2016.11.5.823

피인용 문헌

  1. Computer modeling to forecast accurate of efficiency parameters of different size of graphene platelet, carbon, and boron nitride nanotubes: A molecular dynamics simulation vol.27, pp.2, 2019, https://doi.org/10.12989/cac.2021.27.2.111
  2. Seismic performance of low-rise reinforced concrete moment frames under carbonation corrosion vol.20, pp.2, 2019, https://doi.org/10.12989/eas.2021.20.2.215