Steel and Composite Structures

  • 제20권1호
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  • Pages.91-106
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  • 2016
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Load-carrying capacity degradation of reinforced concrete piers due to corrosion of wrapped steel plates

  • Gao, Shengbin (Department of Civil Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University) ;
  • Ikai, Toyoki (Department of Civil Engineering, Meijo University) ;
  • Ni, Jie (The IT Electronic 11th Design & Research Institute) ;
  • Ge, Hanbin (Department of Civil Engineering, Meijo University)
  • 투고 : 2015.06.18
  • 심사 : 2015.09.26
  • 발행 : 2016.01.20
⟨ 이전 논문 다음 논문 ⟩

초록

Two-dimensional elastoplastic finite element formulation is employed to investigate the load- carrying capacity degradation of reinforced concrete piers wrapped with steel plates due to occurrence of corrosion at the pier base. By comparing with experimental results, the employed finite element analysis method is verified to be accurate. After that, a series of parametric studies are conducted to investigate the effect of corrosion ratio and corrosion mode of steel plates located near the base of in-service pier P2 on load-carrying capacity of the piers. It is observed that the load-carrying capacity of the piers decreases with the increase in corrosion ratio of steel plates. There exists an obvious linear relationship between the load-carrying capacity and the corrosion ratio in the case of even corrosion mode. The degradation of load-carrying capacity resulted from the web's uneven corrosion mode is more serious than that under even corrosion mode, and the former case is more liable to occur than the latter case in actual engineering application. Finally, the failure modes of the piers under different corrosion state are discussed. It is found that the principal tensile strain of concrete and yield range of steel plates are distributed within a wide range in the case of slight corrosion, and they are concentrated on the column base when complete corrosion occurs. The findings obtained from the present study can provide a useful reference for the maintenance and strengthening of the in-service piers.

키워드

참고문헌

  1. ABAQUS analysis user's manual (2010), SIMULIA, Providence, RI, USA.
  2. Fan, J.S., Li, Q.W., Nie, J.G. and Zhou, H. (2014), "Experimental study on the seismic performance of 3d joints between concrete-filled square steel tubular columns and composite beams", J. Struct. Eng., ASCE, 140(12), 04014094(13). https://doi.org/10.1061/(ASCE)ST.1943-541X.0001013
  3. Fang, C.Q. and Kou, X.J. (2005), "The effect of steel corrosion on bond strength in concrete structures", J. Shanghai Jiaotong Univ. (Sci.), E-10(4), 436-440.
  4. Gao, S.B. and Ge, H.B. (2007), "Numerical simulation of hollow and concrete-filled steel columns", Adv. Steel Const., Int. J., 3(3), 668-678.
  5. GB50011-2010 (2010), Code for seismic design of buildings, China Architecture and Building Press, Beijing, China. [In Chinese]
  6. Han, L.H., Tan, Q.H. and Song, T.Y. (2015), "Fire performance of steel reinforced concrete columns", J. Struct. Eng., ASCE, 141(4), 04014128(13). https://doi.org/10.1061/(ASCE)ST.1943-541X.0001081
  7. Hou, C., Han, L.H. and Zhao, X.L. (2013), "Full-range analysis on square CFST stub columns and beams under loading and chloride corrosion", Thin-Wall. Struct., 68, 50-64. https://doi.org/10.1016/j.tws.2013.03.003
  8. Kaita, T., Appuhamy, J.M.R.S., Ohga, M. and Fujii, K. (2012), "An enhanced method of predicting effective thickness of corroded steel plates", Steel Compos. Struct., Int. J., 12(5), 379-393. https://doi.org/10.12989/scs.2012.12.5.379
  9. Kang, W.H., Uy, B., Tao, Z. and Hicks, S. (2015), "Design strength of concrete-filled steel columns", Adv. Steel Constr., 11(2), 165-184.
  10. Karagah, H., Shi, C. and Dawood, M. (2015), "Experimental investigation of short steel columns with localized corrosion", Thin-Wall. Struct., 87, 191-199. https://doi.org/10.1016/j.tws.2014.11.009
  11. Khedmati, R.M., Esmaeil Nouri, Z.H.M. and Roshanali, M.M. (2011), "An effective proposal for strength evaluation of steel plates randomly corroded on both sides under uniaxial compression", Steel Compos. Struct., Int. J., 11(3), 183-205. https://doi.org/10.12989/scs.2011.11.3.183
  12. Maekawa, K., Takemura, J., Irawan, P. and Irie, M. (1993), "Continuum fracture in concrete nonlinearity under triaxial confinement", Proc. Japan Society Civ. Eng. (JSCE), 18(46), 113-122.
  13. Saito, S., Kameyama, Y., Hikosaka, H. and Isibashi, O. (1996), "Finite element analysis of reinforced concrete bridge piers retrofitted with steel jacketing", Tech. Rep. Kyushu Univ., 69(3), 231-237. [In Japanese]
  14. Sharifi, Y. and Paik, J.K. (2011), "Ultimate strength reliability analysis of corroded steel-box girder bridges", Thin-Wall. Struct., 49(1), 157-166. https://doi.org/10.1016/j.tws.2010.09.001
  15. Shi, C., Karagah, H., Dawood, M. and Belarbi, A. (2014), "Numerical investigation of H-shaped short steel piles with localized severe corrosion", Eng. Struct., 73, 114-124. https://doi.org/10.1016/j.engstruct.2014.04.048
  16. Silva, J. and Garbatov, Y. (2013), "Ultimate strength assessment of rectangular steel plates subjected to a random localized corrosion degradation", Eng. Struct., 52, 295-305. https://doi.org/10.1016/j.engstruct.2013.02.013
  17. Wan, M.L. and Han, J.Y. (1995), Technology of Strengthening Concrete Structure, Architecture and Building Press, Beijing, China. [In Chinese]
  18. Wang, X.H. and Liu, X.L. (2012), "Effects of length and location of steel corrosion on the behavior and load capacity of reinforced concrete columns", J. Shanghai Jiaotong Univ. (Sci.), 17(4), 391-400. https://doi.org/10.1007/s12204-012-1297-6
  19. Zhang, B. (2011), Effect of Corrosion on the Performance of Concrete-filled Steel Tubes, Chongqing Jiaotong University, Chongqing, China. [In Chinese]

피인용 문헌

  1. Strength degradation of reinforced concrete piers wrapped with steel plates under local corrosion vol.24, pp.6, 2016, https://doi.org/10.12989/scs.2017.24.6.753
  2. Experimental and numerical study about seismic retrofitting of corrosion-damaged reinforced concrete columns of bridge using combination of FRP wrapping and steel profiles vol.30, pp.3, 2016, https://doi.org/10.12989/scs.2019.30.3.231
  3. Compressive behavior of circular hollow and concrete-filled steel tubular stub columns under atmospheric corrosion vol.33, pp.4, 2016, https://doi.org/10.12989/scs.2019.33.4.615
  4. Influence of lateral impact on reinforced concrete piers under drying-wetting cycle and chloride ion corrosion environment vol.17, pp.1, 2016, https://doi.org/10.3233/brs-210186
  5. Predicting seismic performance of locally corroded steel box-section piers vol.40, pp.5, 2016, https://doi.org/10.12989/scs.2021.40.5.709