DOI QR코드

DOI QR Code

The influence of load pulse shape on pressure-impulse diagrams of one-way RC slabs

  • Wang, Wei (Institute of Technique Physics, College of Science, National University of Defense Technology) ;
  • Zhang, Duo (Institute of Technique Physics, College of Science, National University of Defense Technology) ;
  • Lu, Fangyun (Institute of Technique Physics, College of Science, National University of Defense Technology)
  • 투고 : 2011.02.16
  • 심사 : 2012.04.02
  • 발행 : 2012.05.10

초록

This study is aimed at providing an efficient analytical model to obtain pressure- impulse diagram of one-way reinforced concrete slabs subjected to different shapes of air blast loading using single degree of freedom method (SDOF). A tri-linear elastic perfectly plastic SDOF model has been used to obtain the pressure-impulse diagram to correlate the blast pressure and the corresponding concrete flexural damage. In order to capture the response history for the slab, a new approximately SDOF method based on the conventional SDOF method is proposed and validated using published test data. The influences of pulse loading shape on the pressure-impulse diagram are studied. Based on the results, a pressure-impulse diagram generation method using SDOF and an analytical equation for the pressure-impulse diagram is proposed to different damage levels and different blast loading shapes.

키워드

참고문헌

  1. Army TM 5-1300 (1990), "Structures to resist the effects of accidental explosions", US Department of the Army.
  2. Army TM 5-855-1 (1986), "Fundamentals of protective design for conventional weapons", US Department of the Army.
  3. Bangash, M.Y.H. (1993), "Impact and explosion-analysis and design", Oxford: Blackwell Scientifc Publication.
  4. Baker, W.E., Cox, P.A., Westine, P.S., Kulesz, J.J. and Strehlow, R.A. (1983), Explosion hazards and evaluation, Amsterdam, Elsevier Scientific Pub. Co., New York.
  5. Biggs, J.M. (1964), Introduction to Structural Dynamics, McGraw-Hill.
  6. Fallah, A.S. and Louca, L.A. (2007), "Pressure-impulse diagrams for elastic-plastic-hardening and softening single-degree-of-freedom models subjected to blast loading", Int. J. Impact Eng., 34, 823-842. https://doi.org/10.1016/j.ijimpeng.2006.01.007
  7. Kappos, A.J. (2002), Dynamic Loading and Design of Structures, Spon Press, London.
  8. Jones, J., Wu, C., Oehlers, D.J., Whittaker, A.S., Sun, W., Marksa, S. and Coppola, R. (2009), "Finite difference analysis of simply supported RC slabs for blast loadings", Eng. Struct., 31, 2825-2832. https://doi.org/10.1016/j.engstruct.2009.07.011
  9. Krauthammer, T., Astarlioglu, S., Blasko, J., Soh, T.B. and Ng, P.H. (2008), "Pressure-impulse diagrams for the behavior assessment of structural components", Int. J. Impact Eng., 35, 771-783. https://doi.org/10.1016/j.ijimpeng.2007.12.004
  10. Krauthammer, T. (2008), Modern Protective Structures, CRC Press.
  11. Lan, S.R. and Crawford, J.C. (2003), "Evaluation of the blast resistance of metal deck proofs", Proceeding of the Fifth Asia-pacific Conference on Shock & Impact Loads on Structures, Changsha, Hunan, China.
  12. Li, Q.M. and Shu, X.F. (1992), "Elimination of loading shape effects on blast loading beams in damping medium", Proceedings of the International Symposium on Intense Dynamic Loading and Its Effects, Chengdu.
  13. Li, Q.M. and Jones, N. (1994), "Blast loading of fully clamped circular plates with transverse shear effects", Int. J. Solids Struct., 31, 1861-1876. https://doi.org/10.1016/0020-7683(94)90196-1
  14. Li, Q.M. and Jones, N. (1995a), "Blast loading of fully clamped beams with transverse shear effects", Mech. Struct. Mach., 23, 59-86. https://doi.org/10.1080/08905459508905228
  15. Li, Q.M. and Jones, N. (1995b), "Blast loading of a "short" cylindrical shell with transverse shear effects", Int. J. Impact Eng., 16, 331-353. https://doi.org/10.1016/0734-743X(94)00044-W
  16. Li, Q.M. and Jones, N. (2001), "Foundation of correlation parameters for eliminating pulse shape effects on dynamic plastic response of structures", Impact Research Center Report, Department of Mechanical Engineering, University of Liverpool.
  17. Li, Q.M. and Meng, H. (2002a), "Pressure-impulse diagram for blast loads based on dimensional analysis and single-degree-of-freedom model", J. Eng. Mech.-ASCE, 128(1), 87-92. https://doi.org/10.1061/(ASCE)0733-9399(2002)128:1(87)
  18. Li, Q.M. and Meng, H. (2002b), "Pulse loading shape effects on pressure-impulse diagram of an elasticplastic, single-degree-of-freedom structural model", Int. J. Mech. Sci., 44, 1985-1998. https://doi.org/10.1016/S0020-7403(02)00046-2
  19. Ma, G.W., Shi, H.J. and Shu, D.W. (2007), "P-i diagram method for combined failure modes of rigid-plastic beams", Int. J. Impact Eng., 34, 1081-1094. https://doi.org/10.1016/j.ijimpeng.2006.05.001
  20. Mays, G.C. and Smith, P.D. (1995), Blast Effects on Buildings-design of Buildings to Optimize Resistance to Blast Loading, Thomas Telford, London.
  21. Park, J.Y. and Krauthammer, T. (2009), "Inelastic two-degree-of-freedom model for roof frame under airblast loading", Struct. Eng. Mech., 32, 321-335. https://doi.org/10.12989/sem.2009.32.2.321
  22. PDC-TR 06-01 Rev 1 (2008), "Methodology manual for the Single degree of freedom blast effects design spreadsheets", US Army Corps of Engineers.
  23. Shi, Y.C., 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, 1213-1227. https://doi.org/10.1016/j.ijimpeng.2007.09.001
  24. Smith, P.D. and Hetherington, J.G. (1994), "Blast and ballistic loading of structures", Butterworth-Heinemann, Oxford, 1-336.
  25. Symonds, P.S. (1953), "Dynamic load characteristics in plastic bending of beams", ASME J. Appl. Mech., 20, 475-81.
  26. Wesevich, J.W. and Oswald, C.J. (2005), "Empirical based concrete masonry pressure-impulse diagrams for varying degrees of damage", Proceedings of the 2005 Structures Congress and the 2005 Forensic Engineering Symposium, New York.
  27. Wu, C., Oehlers, D.J., Rebentrost, M., Burman, N. and Whittaker, A.S. (2009), "Blast testing of ultrahigh performance fiber concrete slabs and FRP retrofitted RC slabs", Eng. Struct., 31, 2060-2069. https://doi.org/10.1016/j.engstruct.2009.03.020
  28. Youngdahl, C.K. (1970), "Correlation parameters for eliminating the effect of pulse shape on dynamic plastic deformation", ASME, J. Appl. Mech., 37, 744-752. https://doi.org/10.1115/1.3408605
  29. Zhu, G., Huang, Y.G., Yu, T.X. and Wang, R. (1986), "Estimation of the plastic structural response under impact", Int. J. Impact Eng., 4, 271-282. https://doi.org/10.1016/0734-743X(86)90018-7

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  3. Experimental study and numerical simulation of the damage mode of a square reinforced concrete slab under close-in explosion vol.27, 2013, https://doi.org/10.1016/j.engfailanal.2012.07.010
  4. A new SDOF method of one-way reinforced concrete slab under non-uniform blast loading vol.46, pp.5, 2013, https://doi.org/10.12989/sem.2013.46.5.595
  5. Application of Normalized Pressure Impulse Diagrams for Vented and Unvented Confined Blasts vol.140, pp.3, 2014, https://doi.org/10.1061/(ASCE)EM.1943-7889.0000680
  6. Pressure−impulse diagram method - a fundamental review vol.172, pp.2, 2019, https://doi.org/10.1680/jencm.17.00017
  7. Experimental and numerical investigation of reinforced concrete slabs under blast loading vol.206, pp.None, 2012, https://doi.org/10.1016/j.engstruct.2019.110125