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Dynamic vulnerability assessment and damage prediction of RC columns subjected to severe impulsive loading

  • Abedini, Masoud (School of Civil Engineering, Qingdao University of Technology) ;
  • Zhang, Chunwei (School of Civil Engineering, Qingdao University of Technology)
  • Received : 2020.07.23
  • Accepted : 2020.11.16
  • Published : 2021.02.25

Abstract

Reinforced concrete (RC) columns are crucial in building structures and they are of higher vulnerability to terrorist threat than any other structural elements. Thus it is of great interest and necessity to achieve a comprehensive understanding of the possible responses of RC columns when exposed to high intensive blast loads. The primary objective of this study is to derive analytical formulas to assess vulnerability of RC columns using an advanced numerical modelling approach. This investigation is necessary as the effect of blast loads would be minimal to the RC structure if the explosive charge is located at the safe standoff distance from the main columns in the building and therefore minimizes the chance of disastrous collapse of the RC columns. In the current research, finite element model is developed for RC columns using LS-DYNA program that includes a comprehensive discussion of the material models, element formulation, boundary condition and loading methods. Numerical model is validated to aid in the study of RC column testing against the explosion field test results. Residual capacity of RC column is selected as damage criteria. Intensive investigations using Arbitrary Lagrangian Eulerian (ALE) methodology are then implemented to evaluate the influence of scaled distance, column dimension, concrete and steel reinforcement properties and axial load index on the vulnerability of RC columns. The generated empirical formulae can be used by the designers to predict a damage degree of new column design when consider explosive loads. With an extensive knowledge on the vulnerability assessment of RC structures under blast explosion, advancement to the convention design of structural elements can be achieved to improve the column survivability, while reducing the lethality of explosive attack and in turn providing a safer environment for the public.

Keywords

References

  1. Abedini, M. and Mutalib, A.A. (2020), "Investigation into damage criterion and failure modes of RC structures when subjected to extreme dynamic loads", Arch. Comput. Meth. Eng., 27(2), 501-515. doi: 10.1007/s11831-019-09317-z.
  2. Abedini, M., Mutalib, A.A., Raman, S.N., Alipour, R. and Akhlaghi, E. (2019), "Pressure-Impulse (P-I) diagrams for Reinforced Concrete (RC) structures: A review", Arch. Comput. Meth. Eng., 26(3), 733-767. https://doi.org/10.1007/s11831-018-9260-9.
  3. Abedini, M., Zhang, C., Mehrmashhadi, J. and Akhlaghi, E. (2020), Comparison of ALE, LBE and Pressure Time History Methods to Evaluate Extreme Loading Effects in RC Column, The Structures.
  4. Bao, X. and Li, B. (2010), "Residual strength of blast damaged reinforced concrete columns", Int. J. Impact Eng., 37(3), 295-308. https://doi.org/10.1016/j.ijimpeng.2009.04.003.
  5. Bayat1a, M., Ahmadi, H.R. and Mahdavi, N. (2019), "Application of power spectral density function for damage diagnosis of bridge piers", Struct. Eng. Mech., 71(1), 57-63. https://doi.org/10.12989/sem.2019.71.1.057.
  6. Bayat, M. and Pakar, I. (2011), "Nonlinear free vibration analysis of tapered beams by hamiltonian approach", J. Vibroeng., 13(4).
  7. Baylot, J.T. and Bevins, T.L. (2007), "Effect of responding and failing structural components on the airblast pressures and loads on and inside of the structure", Comput. Struct., 85(11), 891-910. https://doi.org/10.1016/j.compstruc.2007.01.001.
  8. Behnam, B., Shojaei, F. and Ronagh, H.R. (2019), "Seismic progressive-failure analysis of tall steel structures under beamremoval scenarios", Front. Struct. Civil Eng., 13(4), 904-917. https://doi.org/10.1007/s11709-019-0525-7.
  9. Beton, C. (1993), CEB-FIP Model Code 1990: Design Code.
  10. Bischoff, P. and Perry, S. (1991), "Compressive behaviour of concrete at high strain rates", Mater. Struct., 24(6), 425-450. https://doi.org/10.1007/BF02472016.
  11. Cheng, D., Hung, C. and Pi, S. (2013), "Numerical simulation of near-field explosion", J. Appl. Sci. Eng., 16(1), 61-67. https://doi.org/10.6180/jase.2013.16.1.09.
  12. Codina, R., Ambrosini, D. and de Borbon, F. (2016), "Experimental and numerical study of a RC member under a close-in blast loading", Eng. Struct., 127, 145-158. https://doi.org/10.1016/j.engstruct.2016.08.035.
  13. Crawford, J., Wu, Y., Magallanes, J., Choi, H. and Lan, S. (2012), Use and Validation of the Release II K&C Concrete Material Model in LS-DYNA, Karagozian & Case, Glendale.
  14. Cui, J., Shi, Y., Li, Z.X. and Chen, L. (2015), "Failure analysis and damage assessment of RC columns under close-in explosions", J. Perform. Constr. Facil., B4015003. https://doi.org/10.1061/(ASCE)CF.1943-5509.0000766.
  15. Gholipour, G., Zhang, C. and Li, M. (2018), "Effects of soil-pile interaction on the response of bridge pier to barge collision using energy distribution method", Struct. Infrastr. Eng., 14(11), 1520-1534. https://doi.org/10.1080/15732479.2018.1450427.
  16. Gholipour, G., Zhang, C. and Mousavi, A.A. (2018), "Effects of axial load on nonlinear response of RC columns subjected to lateral impact load: Ship-pier collision", Eng. Fail. Anal., 91, 397-418. https://doi.org/10.1016/j.engfailanal.2018.04.055.
  17. Gholipour, G., Zhang, C. and Mousavi, A.A. (2020), "Nonlinear numerical analysis and progressive damage assessment of a cable-stayed bridge pier subjected to ship collision", Marine Struct., 69, 102662. https://doi.org/10.1016/j.marstruc.2019.102662.
  18. Hadianfard, M.A. and Farahani, A. (2012), "On the effect of steel columns cross sectional properties on the behaviours when subjected to blast loading", Struct. Eng. Mech., 44(4), 449-463. https://doi.org/10.12989/sem.2012.44.4.449.
  19. Hallquist, J.O. (2006), LS-DYNA Theory Manual, Vol. 3, Livermore Software Technology Corporation.
  20. Jayasooriya, R., Thambiratnam, D.P., Perera, N.J. and Kosse, V. (2011), "Blast and residual capacity analysis of reinforced concrete framed buildings", Eng. Struct., 33(12), 3483-3495. https://doi.org/10.1016/j.engstruct.2011.07.011.
  21. Kim, D.K., Ng, W.C.K. and Hwang, O. (2018), "An empirical formulation to predict maximum deformation of blast wall under explosion", Struct. Eng. Mech., 68(2), 237-245. https://doi.org/10.12989/sem.2018.68.2.237.
  22. Kim, H.J., Yi, N.H., Kim, S.B., Nam, J.W., Ha, J.H. and Kim, J.H.J. (2011), "Debonding failure analysis of FRP-retrofitted concrete panel under blast loading", Struct. Eng. Mech., 38(4), 479-501. http://dx.doi.org/10.12989/sem.2011.38.4.479.
  23. Low, H.Y. and Hao, H. (2002), "Reliability analysis of direct shear and flexural failure modes of RC slabs under explosive loading", Eng. Struct., 24(2), 189-198. https://doi.org/10.1016/S0141-0296(01)00087-6.
  24. LS-DYNA (2015), Keyword User's Manual V971, CA, Livermore Software Technology Corporation (LSTC), Livermore, California.
  25. Ma, G., Huang, X. and Li, J. (2009), "Damage assessment for buried structures against internal blast load", Struct. Eng. Mech., 32(2), 301-320. http://dx.doi.org/10.12989/sem.2009.32.2.301.
  26. Mahdavi, N., Ahmadi, H.R. and Bayat, M. (2019), "Efficient parameters to predict the nonlinear behavior of FRP retrofitted RC columns", Struct. Eng. Mech., 70(6), 703-710. http://dx.doi.org/10.12989/sem.2019.70.6.703.
  27. Malvar, L.J. (1998), "Review of static and dynamic properties of steel reinforcing bars", ACI Mater. J., 95(5).
  28. Malvar, L.J. and Ross, C.A. (1998), "Review of strain rate effects for concrete in tension", ACI Mater. J., 95(6).
  29. Mutalib, A.A. and Hao, H. (2011a), "Development of P-I diagrams for FRP strengthened RC columns", Int. J. Impact Eng., 38(5), 290-304. http://dx.doi.org/10.1016/j.ijimpeng.2010.10.029.
  30. Mutalib, A.A. and Hao, H. (2011b), "Numerical analysis of FRP-composite-strengthened RC panels with anchorages against blast loads", J. Perform. Constr. Facil., 25(5), 360-372. http://dx.doi.org/10.1061/(ASCE)CF.1943-5509.0000199
  31. Ngo, T. and Mendis, P. (2009), "Modelling the dynamic response and failure modes of reinforced concrete structures subjected to blast and impact loading", Struct. Eng. Mech., 32(2), 269-282. http://dx.doi.org/10.12989/sem.2009.32.2.269.
  32. Ngo, T., Mendis, P., Gupta, A. and J. ramsay. (2007), "Blast loading and blast effects on structures-An overview", eJSE: Loading on Structures, 76-91.
  33. Pakar, I. and Bayat, M. (2012), "Analytical study on the non-linear vibration of Euler-Bernoulli beams", Meth., 10, 17.
  34. Pandey, A. (2010), "Damage prediction of RC containment shell under impact and blast loading", Struct. Eng. Mech., 36(6), 729-744. https://doi.org/10.12989/sem.2010.36.6.729.
  35. Petty, S.E. and Pe, C. (2017), "Blast and explosion damage property assessments", Forensic Engineering, CRC Press
  36. Rezaei, M.J., Gerdooei, M. and Nosrati, H.G. (2020), "Blast resistance of a ceramic-metal armour subjected to air explosion: A parametric study", Struct. Eng. Mech., 74(6), 737-745. http://dx.doi.org/10.12989/sem.2020.74.6.737.
  37. Sadek, F., Main, J.A., Lew, H.S. and Bao, Y. (2011), "Testing and analysis of steel and concrete beam-column assemblies under a column removal scenario", J. Struct. Eng., 137(9), 881-892. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000422.
  38. Shi, Y., Hao, H. and Li, Z.X. (2008), "Numerical derivation of pressure-impulse diagrams for prediction of RC column damage to blast loads", Int. J. Impact Eng., 35(11), 1213-1227. http://dx.doi.org/10.1016/j.ijimpeng.2007.09.001.
  39. TM5-1300 (1990), "Structures to resist the effects of the accidental explosions", Technical Manual, US Department of Army, Picatinny Arsenal, New Jersey.
  40. UFC-3-340-02 (2008), "Design of structures to resist the effects of accidental explosions", US Army Corps of Engineers, Naval Facilities Engineering Command, Air Force Civil Engineer Support Agency, Dept of the Army and Defense Special Weapons Agency, Washington DC.
  41. Wang, W., Zhang, D., Lu, F. and Liu, R. (2013), "A new SDOF method of one-way reinforced concrete slab under non-uniform blast loading", Struct. Eng. Mech., 46(5), 595-613. https://doi.org/10.12989/sem.2013.46.5.595.
  42. Wijesundara, L.M. and Clubley, S.K. (2016), "Residual axial capacity of reinforced concrete columns subject to internal building detonations", Int. J. Struct. Stab. Dyn., 16(8), 1550050. https://doi.org/10.1142/S0219455415500509.
  43. Wu, K.C., Li, B. and Tsai, K.C. (2011), "The effects of explosive mass ratio on residual compressive capacity of contact blast damaged composite columns", J. Constr. Steel Res., 67(4), 602-612. https://doi.org/10.1016/j.jcsr.2010.12.001.
  44. Zhang, C., Abedini, M. and Mehrmashhadi, J. (2020), "Development of pressure-impulse models and residual capacity assessment of RC columns using high fidelity Arbitrary Lagrangian-Eulerian simulation", Eng. Struct., 224, 111219. https://doi.org/10.1016/j.engstruct.2020.111219.
  45. Zhang, C., Gholipour, G. and Mousavi, A. A. (2019), "Nonlinear dynamic behavior of simply-supported RC beams subjected to combined impact-blast loading", Eng. Struct., 181, 124-142. https://doi.org/10.1016/j.engstruct.2018.12.014.
  46. Zhang, F., Wu, C., Zhao, X.L., Heidarpour, A. and Li, Z. (2016), "Experimental and numerical study of blast resistance of square CFDST columns with steel-fibre reinforced concrete", Eng. Struct., 149, 50-63. https://doi.org/10.1016/j.engstruct.2016.06.022.

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