Structural Engineering and Mechanics

  • 제68권3호
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  • Pages.289-297
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  • 2018
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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Effects of deviation in materials' strengths on the lateral strength and damage of RC frames

  • Massumi, Ali (Department of Civil Engineering, Faculty of Engineering, Kharazmi University) ;
  • Sadeghi, Kabir (Civil Engineering and Environmental Faculty, Near East University) ;
  • Moshtagh, Ehsan (School of Civil Engineering, College of Engineering, University of Tehran)
  • 투고 : 2018.06.05
  • 심사 : 2018.08.20
  • 발행 : 2018.11.10
⟨ 이전 논문 다음 논문 ⟩

초록

The real behavior of the RC structures constructed based on the assumed specifications of the used materials is matched with the designed ones when the assumed and the applied specifications in construction are the same. Despite in the construction phase of the reinforced concrete (RC) structures always it is tried to implement the same specifications of materials as given in the executive drawings, but considering the unpredicted/uncontrolled parameters that affect the specification of materials, always there is a deviation between the constructed and the designed materials' specifications. The objective of this paper is to submit a guideline for the evaluation of the strength and damage to the existing RC structures encountered deviation in materials' strengths. To achieve this goal, the lateral strength (plastic behaviors) and damage to twenty-five RC moment-resisting frames (MRFs) are studied by applying the inelastic analysis. In this study, a couple of concrete and reinforcement strengths' deviations are investigated. The obtained results indicate that in general, there is a semi-linear relationship between the deviation in the strength of reinforcement and the changes in the lateral strength values of the MRFs. The relative effect of the deviation in the strength of reinforcements is more than the relative effect of the deviation in the concrete strength on the damage rate. The obtained results could be a guideline for the engineers in the survey of the existing buildings encountered deviation in materials' strengths during their construction phase.

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참고문헌

  1. Abbasnia, R., Mirzadeh, N. and Kildashti, K. (2011), "Assessment of axial force effect on improved damage index of confined RC beam-column members", Int. J. Civil Eng., 9(3), 237-246.
  2. ACI Committee 318 (2002), Building Code Requirements for Reinforced Concrete (ACI318-02) and Commentary, American Concrete Institute, Farmington Hills, Michigan, U.S.A.
  3. 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
  4. ATC (1995), Structural Response Modification Factors, ATC-19 Report, Applied Technology Council, Redwood City, California, U.S.A.
  5. Bertero, V.V. and Mahin, S.A. (1976), "Problems in Establishing and predicting ductility in seismic design", Int. Symp., Earthquake Struc Engrg, St. Louis, Missouri, U.S.A.
  6. Banon, H., Biggs, J.M. and Irvine, H.M. (1981), "Seismic damage in reinforced concrete frames", J. Struct. Div., 107(ST9), 1713-1729.
  7. Building and Housing Research Center (BHRC) (2005), Iranian Code of Practice for Seismic Resistant Design of Buildings, Standard No. 2800-05, 3rd Edition, Building and Housing Research Center, Tehran, Iran.
  8. Chung, Y.S., Meyer, C. and Shinosuka, M. (1989), "Modeling of concrete damage", ACI Mater. J., 86(3), 259-271.
  9. Darwin, D. and Nmai, C.K. (1986), "Energy dissipation in RC beams under cyclic load", J. Struct. Eng., 112(8), 1829-1846. https://doi.org/10.1061/(ASCE)0733-9445(1986)112:8(1829)
  10. Fischinger, M. and Fajfar, P. (1990), "On the response modification factors for reinforced concrete buildings proc", Proceedings of the 4th US National Conference on Earthquake Engineering, Palm Springs, California, U.S.A.
  11. Gharehbaghi, S. (2018), "Damage controlled optimum seismic design of reinforced concrete framed structures", Struct. Eng. Mech., 65(1), 53-68. https://doi.org/10.12989/SEM.2018.65.1.053
  12. Park, R. and Paulay, T. (1975), Reinforced Concrete Structures, John Wiley & Sons, New York, U.S.A.
  13. Gupta, V.K., Nielsen, S.R. and Kierkegaard, P. (2001), "A preliminary prediction of seismic damage-based degradation in RC structures", Earthq. Eng. Struct. Dyn., 30, 981-993. https://doi.org/10.1002/eqe.45
  14. Habibi, A. and Asadi, K. (2017), "Development of drift-based damage index for reinforced concrete moment resisting frames with setback", Int. J. Civil Eng., 15(4), 487-498. https://doi.org/10.1007/s40999-016-0085-3
  15. Heo, Y.A. and Kunnath, S.K. (2013), "Damage-based seismic performance evaluation of reinforced concrete frames", Int. J. Concrete Struct. Mater., 7(3), 175-182. https://doi.org/10.1007/s40069-013-0046-z
  16. Kunnath, S.K., Reinhorn, A.M. and Lobo, R.F. (1992), IDARC Version 3.0, A Program for the Inelastic Damage Analysis of Reinforced Concrete Structures, Report No. NCEER-92-0022, National Center for Earthquake Engineering Research, State University of New York at Buffalo, U.S.A.
  17. Lybas, J.M. and Sozen, M.A. (1977), Effect of Beam Strength and Stiffness on Dynamic Behavior of Reinforced Concrete Coupled Shear Walls, Report No. SRS 444, University of Illinois at Urbana-Champaign, U.S.A.
  18. Massumi, A. (2004), "Estimation of response modification factors for RC-MRF structures, emphasizing the effect of overstrength and redundancy", Ph.D. Dissertation, Tarbiat Modares University, Tehran, Iran.
  19. Massumi, A., Tasnimi, A.A. and Saatcioglu, M. (2004), "Prediction of seismic overstrength in concrete moment resisting frames using incremental static and dynamic analyses", Proceedings of the 13th World Conference on Earthquake Engineering, Vancouver, Canada.
  20. Massumi, A. and Moshtagh, E. (2013), "A new damage index for RC buildings based on variations of nonlinear fundamental period", Struct. Des. Tall Spec. Build., 22(1), 50-61. https://doi.org/10.1002/tal.656
  21. Merter, O., Ucar, T. and Duzgun, M. (2017), "Determination of earthquake safety of RC frame structures using an energy-based approach", Comput. Concrete, 19(6), 689-699. https://doi.org/10.12989/cac.2017.19.6.689
  22. Meyer, I.F. and Kratzig, W.B. (1988), "Damage prediction in reinforced concrete frames under seismic actions", Eur. Earthq. Eng., 3, 9-15.
  23. Oh, B.H. (1991), "Cumulative damage theory of concrete under variable-amplitude fatigue loading", ACI Mater. J., 88(1), 41-48.
  24. Ministry of Housing and Urban Development (2005) Iranian National Building Codes (Part 6, Structural Loadings), Ministry of Housing and Urban Development, Tehran, Iran.
  25. Moshtagh, E. and Massumi, A. (2011), "Seismic assessment of RC buildings by estimation of effective parameters on seismic behavior using non-destructive tests", Struct. Des. Tall Spec. Build., 20, 816-831. https://doi.org/10.1002/tal.560
  26. Nouban, F. and Sadeghi, K. (2018), "An algorithm to simulate the nonlinear behavior of RC 1D structural members under monotonic or cyclic combined loading", Struct. Eng. Mech., 66(3), 305-315. https://doi.org/10.12989/SEM.2018.66.3.305
  27. Park, Y.J. and Ang, A.H.S. (1985), "Seismic damage analysis of reinforced concrete buildings", J. Struct. Eng., 111(4), 740-757. https://doi.org/10.1061/(ASCE)0733-9445(1985)111:4(740)
  28. Park, Y.J., Ang, A.H.S. and Wen, Y.K. (1987), "Damage-limiting a seismic design of buildings", Earthq. Spectra, 3(I), 1-25. https://doi.org/10.1193/1.1585416
  29. Park, R. (1989), "Evaluation of ductility of structures and structural assemblages from laboratory testing", Bullet. New Zealand Nat. Soc. Earthq. Eng., 22(3), 155-166.
  30. Roufaiel, M.S.L. and Meyer, C. (1987), "Analytical modeling of hysteretic behavior of RC frames", J. Struct. Eng., 113(3), 429-444. https://doi.org/10.1061/(ASCE)0733-9445(1987)113:3(429)
  31. Sadeghi, K. (1998), Proposition of a Damage Indicator Applied on R/C Structures Subjected to Cyclic Loading, Fracture Mechanics of Concrete Structures, FRAMCOS-3, Edited by H. Mihashi and K. Rokugo, AEDIFICATIO Publishers, Germany, 1, 707-716.
  32. 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
  33. 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
  34. SAP2000 (2011), Computers and Structures, Inc. SAP2000 Advanced Software 14.2.0 and CSI Analysis Reference Manual for SAP2000, ETABS, SAFE and CSi Bridge, Berkeley, U.S.A.
  35. Shah, S.P. (1984), Prediction of Cumulative Damage for Concrete and Reinforced Concrete, Materiaux et Constructions, Essais et Recherches, 65-68.
  36. Valles, R.E., Reinhorn, A.M., Kunnath, S.K., Li, C. and Madan, A. (1999), IDARC2D Version 5.0, A Computer Program for Inelastic Damage Analysis of Buildings, Technical Report NCEER-96-0010, State University of New York at Buffalo, U.S.A.
  37. Zhao, C., Zhong, X., Liu, B., Shu, X. and Shen, M. (2018), "A modified RBSM for simulating the failure process of RC structures", Comput. Concrete, 21(2), 219-229. https://doi.org/10.12989/CAC.2018.21.2.219