Structural Engineering and Mechanics

  • 제55권6호
  • /
  • Pages.1139-1155
  • /
  • 2015
  • /
  • 1225-4568(pISSN)
  • /
  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Experimental study on seismic behavior of reinforced concrete column retrofitted with prestressed steel strips

  • Zhang, Bo (College of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Yang, Yong (College of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Wei, Yuan-feng (College of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Liu, Ru-yue (College of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Ding, Chu (Department of Civil & Environmental Engineering, Virginia Tech) ;
  • Zhang, Ke-qiang (Department of Civil Engineering & Architecture, Shaanxi University of Technology)
  • 투고 : 2014.11.16
  • 심사 : 2015.08.30
  • 발행 : 2015.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, a new retrofitting method for improving the seismic performance of reinforced concrete column was presented, in which prestressed steel strips were utilized as retrofitting stuff to confine the reinforced concrete column transversely. In order to figure out the seismic performance of concrete column specimen retrofitted by such prestressed steel strips methods, a series of quasi-static tests of five retrofitted specimens and two unconfined column specimen which acted as control specimens were conducted. Based on the test results, the seismic performance including the failure modes, hysteresis performance, ductility performance, energy dissipation and stiffness degradation of all these specimens were fully investigated and analyzed. And furthermore the influences of some key parameters such as the axial force ratios, shear span ratios and steel strips spacing on seismic performance of those retrofitted reinforced concrete column specimens were also studied. It was shown that the prestressed steel strips provided large transverse confining effect on reinforced concrete column specimens, which resulted in improving the shearing bearing capacity, ductility performance, deformation capacity and energy dissipation performance of retrofitted specimens effectively. In comparison to the specimen which was retrofitted by the carbon fiber reinforced plastics (CFRP) strips method, the seismic performance of the specimens retrofitted by the prestressed steel strips was a bit better, and with much less cost both in material and labor. From this research results, it can be concluded that this new retrofitting method is really useful and has significant advantages both in saving money and time over some other retrofitting methods.

키워드

과제정보

연구 과제 주관 기관 : Natural Science Foundation of Education Department of Shaanxi Province

참고문헌

  1. Andrawes, B., Shin, M. and Wierschem, N. (2010), "Active confinement of reinforced concrete bridge columns using shape memory alloys", J. Bridge Eng., 15(1), 81-89. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000038
  2. Biskinis, D. and Fardis, M.N. (2013), "Models for FRP-wrapped rectangular RC columns with continuous or lap-spliced bars under cyclic lateral loading", Eng. Struct., 57, 199-212. https://doi.org/10.1016/j.engstruct.2013.09.021
  3. Budek, A.M., Lee, C.O. and Priestley, M.J.N. (2001), "Seismic design of circular bridge columns with unstressed prestressing strand for transverse reinforcement", Research Report, Dept. of Structure Engineering,University of California at San Diego.
  4. Chastre, C. and Silva, M.A.G. (2010), "Monotonic axial behavior and modelling of RC circular columns confined with CFRP", Eng. Struct., 32, 2268-2277. https://doi.org/10.1016/j.engstruct.2010.04.001
  5. Chen, Q., Shin, M. and Andrawes, B. (2014), "Experimental study of non-circular concrete elements actively confined with shape memory alloy wires", Constr. Build. Mater., 61, 303-311. https://doi.org/10.1016/j.conbuildmat.2014.02.076
  6. Civil and Structural Groups of Tsinghua University, Xinan Jiaotong University and Beijing Jiaotong University (2008), "Analysis on seismic damage of buildings in the Wenchuan earthquake", J. Build. Struct., 29(4), 1-9.
  7. Dogan, M. (2013), "Failure of structural (RC, masonry, bridge) to Van earthquake", Eng. Fail. Anal., 35, 489-498. https://doi.org/10.1016/j.engfailanal.2013.05.010
  8. Garden, H.N. and Hollaway, L.C. (1998), "An experimental study of the failure modes of reinforced concrete beams strengthened with prestressed carbon composite plates", Compos. Part B, 29(4), 411-424. https://doi.org/10.1016/S1359-8368(97)00043-7
  9. Guo, J.P., Deng, Z.C., Lin, J.S. and Lu, H.B. (2014), "Experimental study on seismic behavior of RC columns strengthened with prestressed high strength steel wire mesh", J. Build. Struct., 35(2), 128-136.
  10. Guo, Z.X., Wu, Y.B. and Zeng, J.Y. (2010), "Experimental study on shear bearing capacity of RC short column retrofitted by prestrssed steel jacket", Eng. Mech., 27(3), 138-144.
  11. Guo, Z.X., Zhang, J. and Yang, Y. (2006), "Study on the seismic performance of RC column confined by prestressed steel plate hoops", J. Harbin Inst. Technol., 38(1), 140-144.
  12. Kaplan, H., Yilmaz, S., Binici, H., Yazar, E. and Cetinkaya, N. (2004), "May 1, 2003 Turkey-Bingol earthquake: damage in reinforced concrete structures", Eng. Fail. Anal., 11(3), 279-291. https://doi.org/10.1016/j.engfailanal.2003.08.005
  13. Kwon, O.S. and Kim, E. (2010), "Case study: analytical investigation on the failure of a two-story RC building damaged during the 2007 Pisco-Chincha earthquake", Eng. Struct., 32, 1876-1887. https://doi.org/10.1016/j.engstruct.2009.12.022
  14. Li, B.X., Tian, M.W., Mo, S.T. and Wang, Z. (2014), "Investigation to the origin and damages of RC captive columns during earthquakes", Earthq. Resist. Eng. Retrof., 36(3), 120-127.
  15. Li, B.X., Xie, H.P., Deng, J.H., He, C.R. and Wang, Z. (2009), "Characteristic analysis of performance and damage of buildings in Wenchuan earthquake and considreations in aseismic design of buildings", J. Disaster Prev. Mitig. Eng., 29(2), 224-230.
  16. Promis, G. and Ferrier, E. (2012), "Performance indices to assess the efficiency of external FRP retrofitting of reinforced concrete short columns for seismic strengthening", Constr. Build. Mater., 26, 32-40. https://doi.org/10.1016/j.conbuildmat.2011.04.067
  17. Shahab, M.T. and Hasan, M. (2007), "Experimental and analytical investigation of square RC columns retrofitted with pre-stressed FRP straps", 8th International Symposium on FRP Reinforcement for Concrete Structures, Greece.
  18. Shin, M. and Andrawes, B. (2011), "Lateral cyclic behavior of reinforced concrete columns retrofitted with shape memory spirals and FRP wraps", J. Struct. Eng., 137(11), 1282-1290. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000364
  19. Suzuki, Z. (1971), "General report on the Tokachi-Oki earthquake of 1968", Research Report, Tokyo.
  20. Wang, Y.Y. and Bai, X.S. (2001), "Performance of reinforced concrete frame structures during 9.21 Taiwan earthquake", Earthq.Resist. Eng., 1, 3-7.
  21. Wang, J., Cai, X.J. and Tian, S.Z. (2009), "Numerical simulation on seismic behavior of CFRP retrofitted RC short column based on OpenSees", World Earthq. Eng., 25(4), 108-111.
  22. Wight, R.G., Green, M.F. and Erki, M.A. (2001), "Prestressed FRP sheets for poststrengthening reinforced concrete beams", J. Compos. Constr., 5(4), 214-220 https://doi.org/10.1061/(ASCE)1090-0268(2001)5:4(214)
  23. Yamakawa, T., Banazadeh, M. and Fujikawa, S. (2005),"Emergency retrofit of shear damaged extremely short RC columns using pre-tensioned Aramid belts", J. Adv. Concrete Tech., 3(1), 95-106. https://doi.org/10.3151/jact.3.95
  24. Yang, Y., Xue, J.Y., Huang, H.P., Han, X.Y. and Gong, H.X. (2011), Reinforcement Method of Column in Construction, Patent, 201010575642.6, China.
  25. You, Y.C., Choi, K.S. and Kim, J. (2012), "An experimental investigation on flexural behavior of RC beams strengthened with prestressed CFRP strips using a durable anchorage system", Compos. Part B, 43, 3026-3036. https://doi.org/10.1016/j.compositesb.2012.05.030
  26. Zhang, X.D., Ma, Z.J., Liu, J.Y., Liu, Z.W., Zhou, X.H. and Liu, J.P. (2011), "Experimental study on seismic behavior of tubed RC transition short columns", Build. Struct., 41(6), 91-93.
  27. Zhou, C.D., Bai, X.B., Zhao, F., Lv, X.L. and Li, C.L. (2013), "Experimental study on circular concrete short columns strengthened with pre-stressed FRP under axial compression", J. Build. Struct., 34(2), 131-140.
  28. Zhou, X.H., Gan, D., Liu, J.P. and Zhang, S.M. (2011), "Experiment and analysis on square tubed reinforced concrete stub columns under axial compression", J. Build. Struct., 32(2), 68-74.

피인용 문헌

  1. Influence of concurrent horizontal and vertical ground excitations on the collapse margins of non-ductile RC frame buildings vol.59, pp.4, 2016, https://doi.org/10.12989/sem.2016.59.4.653
  2. Mechanical Strength of Galvanized Steel Wire Mesh (GSWM) as a Strengthening Material of Short RC Column vol.491, pp.None, 2015, https://doi.org/10.1088/1757-899x/491/1/012014
  3. Analysis on damage of RC frames retrofitted with buckling-restrained braces based on estimation of damage index vol.70, pp.6, 2015, https://doi.org/10.12989/sem.2019.70.6.781
  4. Cyclic tests on RC joints retrofitted with pre-stressed steel strips and bonded steel plates vol.75, pp.6, 2020, https://doi.org/10.12989/sem.2020.75.6.675
  5. Compressive behavior of galvanized steel wire mesh (GSWM) strengthened RC short column of varying shapes vol.7, pp.3, 2020, https://doi.org/10.12989/smm.2020.7.3.215
  6. Research on axial behaviour of concrete columns retrofitted with pre-stressed steel strips vol.72, pp.21, 2015, https://doi.org/10.1680/jmacr.18.00107