International Journal of Concrete Structures and Materials

  • 제7권1호
  • /
  • Pages.35-50
  • /
  • 2013
  • /
  • 1976-0485(pISSN)
  • /
  • 2234-1315(eISSN)
한국콘크리트학회 (Korea Concrete Institute)
권호 표지
DOI QR코드

DOI QR Code

Rapid Repair of Severely Damaged RC Columns with Different Damage Conditions: An Experimental Study

  • He, Ruili (Department of Civil, Architectural & Environmental Engineering, Missouri University of Science and Technology) ;
  • Sneed, Lesley H. (Department of Civil, Architectural & Environmental Engineering, Missouri University of Science and Technology) ;
  • Belarbi, Abdeldjelil (Department of Civil & Environmental Engineering, University of Houston)
  • 투고 : 2012.12.31
  • 심사 : 2013.02.13
  • 발행 : 2013.03.30
⟨ 이전 논문 다음 논문 ⟩

초록

Rapid and effective repair methods are desired to enable quick reopening of damaged bridges after an earthquake occurs, especially for those bridges that are critical for emergency response and other essential functions. This paper presents results of tests conducted as a proof-of-concept in the effectiveness of a proposed method using externally bonded carbon fiber reinforced polymer (CFRP) composites to rapidly repair severely damaged RC columns with different damage conditions. The experimental work included five large-scale severely damaged square RC columns with the same geometry and material properties but with different damage conditions due to different loading combinations of bending, shear, and torsion in the previous tests. Over a three-day period, each column was repaired and retested under the same loading combination as the corresponding original column. Quickset repair mortar was used to replace the removed loose concrete. Without any treatment to damaged reinforcing bars, longitudinal and transverse CFRP sheets were externally bonded to the prepared surface to restore the column strength. Measured data were analyzed to investigate the performance of the repaired columns compared to the corresponding original column responses. It was concluded that the technique can be successful for severely damaged columns with damage to the concrete and transverse reinforcement. For severely damaged columns with damaged longitudinal reinforcement, the technique was found to be successful if the damaged longitudinal reinforcement is able to provide tensile resistance, or if the damage is located at a section where longitudinal CFRP strength can be developed.

키워드

참고문헌

  1. ACI Committee 318. (2008). Building code requirements for structural concrete and commentary (ACI318-08). Farmington Hills, MI: American Concrete Institute.
  2. ACI Committee 440. (2008). Guide for the design and construction concrete structures. ACI 440.2R-08. Farmington Hills, MI: American Concrete Institute.
  3. Applied Technology Council (ATC). (1997). Seismic design criteria for bridges and other highway structures: Current and future. ATC-18, Redwood City.
  4. ASTM. (2005). Standard test method for pull-off adhesion strength of coatings on concrete using portable pull-off adhesion testers. D7234-05. West Conshohocken, PA: ASTM International.
  5. ASTM. (2012). Test methods and definitions for mechanical testing of steel products. A370-12a. West Conshohocken, PA: ASTM International.
  6. California Department of Transportation. (2004). Caltrans bridge design specification. Sacramento, CA: California Department of Transportation.
  7. California Department of Transportation. (2006). Seismic design criteria (SDC), version 1.4. Sacramento, CA: Engineering Service Center, Earthquake Engineering Branch.
  8. California Department of Transportation. (2007). Memo to designers 20-4, attachment B. Sacramento, CA: Engineering Service Center, Earthquake Engineering Branch.
  9. Chai, Y. H., Priestley, M. J. N., & Seible, F. (1991). Seismic retrofit of circular bridge columns for enhanced flexural performance. ACI Structural Journal, 88(5), 572-584.
  10. Cheng, C. T., Yang, J. C., Yeh, Y. K., & Chen, S. E. (2003). Seismic performance of repaired hollow-bridge piers. Construction and Building Materials, 17(5), 339-351. https://doi.org/10.1016/S0950-0618(02)00119-8
  11. Elkin, S. J., Nacamuli, A. M., Lehman, D. E., & Moehle, J. P. (1999). Seismic performance of damaged bridge columns. Earthquake Engineering and Engineering Seismology, 1(1), 39-50.
  12. Grelle, S. V. (2011). Categorization and experimental evaluation of anchorage systems for FRP laminates bonded to reinforced concrete structures. Master's Thesis, Missouri University of Science and Technology, Rolla, MO.
  13. Jing, M., Raongjant, W., & Li, Z. (2007). Torsional strengthening of reinforced concrete box beams using carbon fiber reinforced polymer. Composite Structures, 78(2), 264-270. https://doi.org/10.1016/j.compstruct.2005.10.017
  14. Lehman, D. E., Gookin, S. E., Nacamuli, A. M., & Moehle, J. P. (2001). Repair of earthquake-damaged bridge columns. ACI Structural Journal, 98(2), 233-242.
  15. Park, R., & Paulay, T. (1975). Reinforced concrete structures. New York: Wiley.
  16. Prakash, S. S., Li, Q., & Belarbi, A. (2012). Behavior of circular and square reinforced concrete bridge columns under combined loading including torsion. ACI Structrual Journal, 109(3), 317-327.
  17. Rojahn, C., Mayer, R., Anderson, D. G., Clark, J., Hom, J. H., Hutt, R. V., & O'Rourke, M. J. (1997). Seismic design criteria for bridges and other highway structures. Redwood City, CA: Applied Technology Council.
  18. Saadatmanesh, H., Ehsani, M., & Jin, L. (1997). Repair of earthquake-damaged RC columns with FRP wraps. ACI Structural Journal, 94(2), 206-215.
  19. Stoppenhagen, D. R., Jirsa, J. Q., & Wyllie, L. A. Jr. (1995). Seismic repair and strengthening of a severely damaged concrete frame. ACI Structural Journal, 92(2), 177-187.
  20. Vosooghi, A., & Saiidi, M. (2009). Rapid repair of high-shear earthquake-damaged RC bridge columns. In Proceedings of 25th US-Japan bridge engineering workshop, Tsukuba, Japan, Session 7.
  21. Vosooghi, A., & Saiidi, S. (2012). Design guidelines for rapid repair of earthquake-damaged circular RC bride columns using CFRP. Journal of Bridge Engineering. doi:10.1061/(ASCE)BE.1943-5592.0000426.
  22. Vosooghi, A., & Saiidi, M. (2013). Shake-table studies of repaired reinforced concrete bridge columns using carbon fiber-reinforced polymer fabrics. ACI Structural Journal, 110(1), 105-114.
  23. Vosooghi, A., Saiidi, M., & Gutierrez, J. (2008). Rapid repair of RC bridge columns subjected to earthquakes. In Proceedings of 2nd international conference on concrete repair, rehabilitation, and retrofitting (ICCRRR 2008), Cape Town, South Africa, pp. 397-398.

피인용 문헌

  1. Seismic Repair of Reinforced Concrete Bridge Columns: Review of Research Findings vol.20, pp.12, 2015, https://doi.org/10.1061/(asce)be.1943-5592.0000760
  2. Collision Capacity Evaluation of RC Columns by Impact Simulation and Probabilistic Evaluation vol.13, pp.2, 2013, https://doi.org/10.3151/jact.13.67
  3. Collapse Vulnerability and Fragility Analysis of Substandard RC Bridges Rehabilitated with Different Repair Jackets Under Post-mainshock Cascading Events vol.9, pp.3, 2013, https://doi.org/10.1007/s40069-015-0107-6
  4. The Hysteresis Performance and Restoring Force Model for Corroded Reinforced Concrete Frame Columns vol.2016, pp.None, 2013, https://doi.org/10.1155/2016/7615385
  5. Seismic repair of captive-column damage with CFRPs in substandard RC frames vol.61, pp.1, 2017, https://doi.org/10.12989/sem.2017.61.1.001
  6. Concentrated and Distributed Plasticity Models for Seismic Repair of Damaged RC Bridge Columns vol.22, pp.5, 2013, https://doi.org/10.1061/(asce)cc.1943-5614.0000879
  7. Restoration of pre-damaged RC bridge columns using basalt FRP composites vol.14, pp.5, 2013, https://doi.org/10.12989/eas.2018.14.5.379
  8. Rapid repair of severely damaged reinforced concrete columns under combined axial compression and flexure: An experimental study vol.173, pp.None, 2013, https://doi.org/10.1016/j.conbuildmat.2018.04.037
  9. Effectiveness of seismic repairing stages with CFRPs on the seismic performance of damaged RC frames vol.67, pp.3, 2013, https://doi.org/10.12989/sem.2018.67.3.233
  10. A degrading Bouc-Wen model for the hysteresis of reinforced concrete structural elements vol.16, pp.7, 2013, https://doi.org/10.1080/15732479.2019.1674893
  11. Experimental and numerical investigation of the effect of cross-section shape on damaged self-compacting concrete columns vol.1067, pp.1, 2021, https://doi.org/10.1088/1757-899x/1067/1/012063
  12. Repair of severely damaged RC columns through FRCM composites vol.273, pp.None, 2013, https://doi.org/10.1016/j.conbuildmat.2020.121739