Computers and Concrete

  • 제30권1호
  • /
  • Pages.19-32
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  • 2022
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Analysis of colliding index on impact behavior of RC columns under repeated impact loading

  • Tantrapongsaton, Warakorn (Department of Civil Engineering, Chiang Mai University) ;
  • Hansapinyo, Chayanon (Excellence Center in Infrastructure Technology and Transportation Engineering, Department of Civil Engineering, Chiang Mai University) ;
  • Wongmatar, Piyapong (Excellence Center in Infrastructure Technology and Transportation Engineering, Department of Civil Engineering, Chiang Mai University) ;
  • Limkatanyu, Suchart (Department of Civil Engineering, Prince of Songkla University) ;
  • Zhang, Hexin (School of Engineering and the Built Environment, Edinburgh Napier University) ;
  • Charatpangoon, Bhuddarak (Excellence Center in Infrastructure Technology and Transportation Engineering, Department of Civil Engineering, Chiang Mai University)
  • 투고 : 2021.03.19
  • 심사 : 2022.06.07
  • 발행 : 2022.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents an investigation into the failure of RC columns under impact loadings. A numerical simulation of 19 identical RC columns subjected to single and repeated impact loadings was performed. A free-falling hammer was dropped at midspan with the same total kinetic energy input but varying mass and momentum. The specimens under the repeated impact test were struck two times at the same location. The colliding index, defined as the impact energy-momentum ratio, was proposed to explain the different impact responses under equal-energy impacts. The increase of colliding index from low to high indicates the transition of the impact response from static to dynamic and failure mode from flexure to shear. This phenomenon was more evident when the column had a greater axial load and was impacted with a high colliding index. The existence of the axial load had an inhibitory effect on the crack development and increased the shear resistance. The second impact changes the failure mode from flexural to brittle shear as found in the specimen with 20% axial load subjected to high a colliding index. Moreover, a deflection prediction equation based on the impact energy and force was limited to the low colliding index impact.

키워드

과제정보

The authors would like to acknowledge the financial supports granted by Chiang Mai University, TRF Research Scholar (RSA6280039), TRF Senior Research Scholar (RTA6280012), Research and Researchers for Industries (RRI/PHD59I0092).

참고문헌

  1. ACI 318 (2008), Building Code Requirements for Reinforced Concrete and Commentary, American Concrete Institute; Farmington Hills, Michigan, USA.
  2. Bi, K. and Hao, H. (2013), "Numerical simulation of pounding damage to bridge structures under spatially varying ground motions", Eng. Struct., 49, 62-76. https://doi.org/10.1016/j.engstruct.2012.07.012.
  3. Bisby, L. and Ranger, M. (2010), "Axial-flexural interaction in circular FRP-confined reinforced concrete columns", Constr. Build. Mater., 24(9), 1672-1681. https://doi.org/10.1016/j.conbuildmat.2010.02.024.
  4. CEB Bulletins (1988), Concrete Structures Under Impact and Impulsive Loading, Comite Euro-International du Beton, Bulletin d'Information, Lausanne, Switzerland.
  5. Chen, W., Hao, H. and Chen, S. (2015), "Numerical analysis of prestressed reinforced concrete beam subjected to blast loading", Mater. Des., 65, 662-674. https://doi.org/10.1016/j.matdes.2014.09.033.
  6. Fujikake, K., Li, B. and Soeun, S. (2009), "Impact response of reinforced concrete beam and its analytical evaluation", J. Struct. Eng., ASCE, 134(8), 938-950. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000039.
  7. 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.engstruct.2017.09.009.
  8. Hansapinyo, C., Limkatanyu, S., Zhang, H. and Imjai, T. (2021), "Residual strength of reinforced concrete beams under sequential small impact loads", Build., 11(11), 518. https://doi.org/10.3390/buildings11110518.
  9. Hansapinyo, C., Wongmatar, P., Vimonsatit, V. and Chen, W. (2019), "Pounding of seismically designed low-rise reinforced concrete frames", Proc. Inst. Civil Eng.: Struct. Build., 172(11), 819-835. https://doi.org/10.1680/jstbu.17.00138.
  10. Jin, L., Zhang, R., Du, X. and Dou, G. (2019), "Structural behavior of the steel fiber reinforced concrete beam under multiple impact loadings: An experimental investigation", Int. J. Damage Mech., 29(3), 503-526. https://doi.org/10.1177/1056789519862331.
  11. Johansson, A. and Fredberg, J. (2015), "Structural behaviour of prestressed concrete beams during impact loading", Master Thesis, Chalmers University of Technology, Gothenburg, Sweden.
  12. Kishi, N. and Mikami, H. (2012), "Empirical formulas for designing reinforced concrete beams under impact loading", ACI Struct. J., 109(4), 509-519. https://doi.org/10.14359/51683870.
  13. Li, H., Chen, W. and Hao, H. (2020), "Factors influencing impact force profile and measurement accuracy in drop weight impact tests", Int. J. Impact Eng., 145, 103688. https://doi.org/10.1016/j.ijimpeng.2020.103688.
  14. Liu, B., Fan, W., Guo, W., Chen, B. and Liu, R. (2017), "Experimental investigation and improved FE modeling of axially-loaded circular RC columns under lateral impact loading", Eng. Struct., 152, 619-642. https://doi.org/10.1016/j.engstruct.2017.09.009.
  15. LS-DYNA (2007), LS-DYNA Keyword User's Manual, Volume I, Version 971, Livermore Software Technology Corporation, California, USA.
  16. Malvar, L.J. (1998), "Review of static and dynamic properties of steel reinforcing bars", ACI Mater. J., 95(5), 609-616.
  17. Malvar, L.J. and Ross, A.C. (1998), "Review of strain rate effects for concrete in tension", ACI Mater. J., 95(6), 735-739.
  18. Namboothiri, V.P. (2017), "Seismic pounding of adjacent buildings", Int. Res. J. Eng. Technol. (IRJET), 4(3), 1443-1448.
  19. Ozbolt, J. and Sharma, A. (2011), "Numerical simulation of reinforced concrete beams with different shear reinforcements under dynamic impact loads", Int. J. Impact Eng., 38, 940-950. https://doi.org/10.1016/j.ijimpeng.2011.08.003.
  20. Pham, T.M. and Hao, H. (2016a), "Behavior of fiber-reinforced polymer-strengthened reinforced concrete beams under static and impact loads", Int. J. Protect. Struct., 8(1), 3-24. https://doi.org/10.1177/2041419616658730.
  21. Pham, T.M. and Hao, H. (2016b), "Prediction of the impact force on RC beams from a drop weight", Adv. Struct. Eng., 1-13. https://doi.org/10.1177/1369433216649384.
  22. Qin, F. and Pingan, W. (2003), "Main factors affecting failure modes of blast loaded RC beams", Chin. J. Comput. Mech., 20(1), 39-42.
  23. Remennikov, A.M. and Kaewunruen, S. (2006), "Impact resistance of reinforced concrete columns: experimental studies and design considerations", 19th Australasian Conference on the Mechanics of Structures and Materials, Christchurch, New Zealand.
  24. Saatic, S. and Vecchio, F.J. (2009a), "Effects of shear mechanisms on impact behavior of reinforced concrete beams", ACI Struct. J., 106(1), 78-86.
  25. Saatic, S. and Vecchio, F.J. (2009b), "Nonlinear finite element modeling of reinforced concrete structures under impact loads", ACI Struct. J., 106(5), 717-725.
  26. Sha, Y. and Hao, H. (2013), "Laboratory tests and numerical simulations of barge impact on circular reinforced concrete piers", Eng. Struct., 46, 593-605. https://doi.org/10.1016/j.engstruct.2012.09.002.
  27. Tachibana, S., Masuya, H. and Nakamura, S. (2010), "Performance based design of reinforced concrete beams under impact", Nat. Hazard. Earth Syst. Sci., 10, 1069-1078. https://doi.org/10.5194/nhess-10-1069-2010.
  28. Tantrapongsaton, W. and Hansapinyo, C. (2019), "Impact response of reinforced concrete columns with different axial load under low-velocity impact loading", Key Eng. Mater., 803, 322-330. https://doi.org/10.4028/www.scientific.net/KEM.803.322.
  29. Tantrapongsaton, W., Hansapinyo, C., Wongmatar, P. and Chaisomphob, T. (2018), "Flexural reinforced concrete members with minimum reinforcement under low-velocity impact load", Int. J. Geomate, 14(46), 129-136. https://doi.org/10.21660/2018.46.STR107.
  30. Thilakarathna, H.M.I., Thambiratnam, D.P., Dhanasekar, M. and Perera, N. (2010), "Numerical simulation of axially loaded concrete columns under transverse impact and vulnerability assessment", Int. J. Impact Eng., 37(11), 1100-1112. https://doi.org/10.1016/j.ijimpeng.2010.06.003.
  31. Thilakarathna, H.M.I., Thambiratnam, D.P., Dhanasekar, M. and Perera, N. (2013), "Shear-critical impact response of biaxially loaded reinforced concrete circular columns", ACI Struct. J., 110(4), 565-574. https://doi.org/10.14359/51685742.
  32. Wongmatar, P., Hansapinyo, C., Bi, K. and Vimonsatit, V. (2016), "The effect of shear and bending capacities on impact behavior of RC beams", Proceedings of the 24th Australian Conference on the Mechanics of Structures and Materials (ACMSM24), Perth, December.
  33. Wongmatar, P., Hansapinyo, C., Vimonsatit, V. and Chen, W. (2018), "Recommendations for designing reinforced concrete beams against low velocity impact loads", Int. J. Struct. Stab. Dyn., 18(9), 1850104. https://doi.org/10.1142/S0219455418501043.
  34. Zhao, D., Yi, W. and Kunnath, S.K. (2017), "Shear mechanisms in reinforced concrete beams under impact loading", J. Struct. Eng., 143(9), 1-13. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001818.