Steel and Composite Structures

  • 제10권2호
  • /
  • Pages.187-205
  • /
  • 2010
  • /
  • 1229-9367(pISSN)
  • /
  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Behaviors of concrete filled square steel tubes confined by carbon fiber sheets (CFS) under compression and cyclic loads

  • Park, Jai Woo (University of Seoul, Department of Architecture Engineering) ;
  • Hong, Young Kyun (Hongik University, Department of Architecture) ;
  • Choi, Sung Mo (University of Seoul, Department of Architecture Engineering)
  • 투고 : 2009.09.03
  • 심사 : 2010.03.18
  • 발행 : 2010.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

The existing CFT columns present the deterioration in confining effect after the yield of steel tube, local buckling and the deterioration in load capacity. If lateral load such as earthquake load is applied to CFT columns, strong shearing force and moment are generated at the lower part of the columns and local buckling appears at the column. In this study, axial compression test and beam-column test were conducted for existing CFT square column specimens and those reinforced with carbon fiber sheets (CFS). The variables for axial compression test were width-thickness ratio and the number of CFS layers and those for beamcolumn test were concrete strength and the number of CFS layers. The results of the compression test showed that local buckling was delayed and maximum load capacity improved slightly as the number of layers increased. The specimens' ductility capacity improved due to the additional confinement by carbon fiber sheets which delayed local buckling. In the beam-column test, maximum load capacity improved slightly as the number of CFS layers increased. However, ductility capacity improved greatly as the increased number of CFS layers delayed the local buckling at the lower part of the columns. It was observed that the CFT structure reinforced with carbon fiber sheets controlled the local buckling at columns and thus improved seismic performance. Consequently, it was deduced that the confinement of CFT columns by carbon fiber sheets suggested in this study would be widely used for reinforcing CFT columns.

키워드

과제정보

연구 과제번호 : Development of highly-efficient production & disaster-prevention technology for skyscrapers

연구 과제 주관 기관 : KOSEF, Korea Research Foundation

참고문헌

  1. A. H. Varma., J. M. Ricles., R. S. Sause. and L. W. Lu., (2004) "Seismic Behavior and Design of High-Strength Square Concrete-Filled Steel Tube Beam Columns", J. Struct. Eng, -ASCE., 130(2), 169-179. https://doi.org/10.1061/(ASCE)0733-9445(2004)130:2(169)
  2. AISC (2005), Steel Construction Manual 2, 13th ed., American Institute of Steel Constriction .
  3. American Concrete Institute (ACI)., (1996), State-of art report on fiber reinforced plastic(FRP) reinforcement for concrete structures, ACI 440R-96 Committee 440, Detroit.
  4. ANSI/ AISC 341-02., (2002), Seismic Provisions for Structural Steel Buildings, 40-41.
  5. C.S. Huang. and Y. K. Yeh., (2002), "Axial load behavior of stiffened concrete-filled steel columns", J. Struct. Eng. -ASCE, 128(9), 1222-1230. https://doi.org/10.1061/(ASCE)0733-9445(2002)128:9(1222)
  6. Choi. S. M., Ji. K. H. and Kim. D. K., (2000), "Evaluation on Deformation Capacity of CFT Square Columns subjected to Constant Axial and Cyclic Lateral Loads", J. Kor. Society. Steel Construction, 12(2), 209-219.
  7. H. Ge. and T. Usami., (1992), "Strength of concrete-filled thin-walled steel ox columns: Experiment", J. Struct. Eng. -ASCE., 118(11), 3036-3054. https://doi.org/10.1061/(ASCE)0733-9445(1992)118:11(3036)
  8. H. Saadatmanesh., M. R. Ehsani. and L. Jin., (1996) "Seismic Strengthening of Circular Bridge Pier Model with Fiber Composites", ACI Struct. J., 92(3), 639-647.
  9. J. Cai. and ZX. Q. He., (2006).,"Axial load behavior of square CFT stub column with binding bars.", J. Construct. Steel Res., 62, 472-483. https://doi.org/10.1016/j.jcsr.2005.09.010
  10. J.G. Teng., J.F. Chen., S.T. Smith. and L. Lam., (2001), FRP Strengthened RC Structures, 3-5.
  11. J. W. Park., (2008) "Load bearing capacity for concrete filled steel square tube confined by carbon fiber sheets.", Ph.D. thesis, Honeik University, Korea.
  12. K. Sakino. and M. Tommi., (1981),"Hysteretic behavior of concrete filled square steel tubular beam-columns failed in flexure", Transactions. Jap. Concrete Inst., 3, 439-446
  13. Kang. C. H., Oh. Y. S. and Moon. T. S., (2001), "Strength of Axially Loaded Concrete-Filled Tubular Stub Columns", J. Kor. Society. Steel. Construction, 12(2), 279-287.
  14. S. P .Schneider.,(1998) "Axially Loaded Concrete-Filled Steel Tubes", J. Struct. Eng. -ASCE., 121(10), 1125- 1138
  15. T. Fujimoto., A. Mukai., I. Nishiyama. and K. Sakino., (2004) "Behavior of Eccentrically Loaded Concrete- Filled Steel Tubular Columns", J. Struct. Eng., -ASCE., 130(2), 203-212. https://doi.org/10.1061/(ASCE)0733-9445(2004)130:2(203)
  16. T. Fukumoto., (2005), "Steel-beam-to-concrete-filled-steel-tube-column Moment Connection in Japan", Steel Struct., 5, 357-365.
  17. T. I. Lin., C.M. Huang. and S. Y. Chen.,(1993), "Concrete-filled tubular steel columns subjected to eccentric axial load", J. Chin. Inst. Civil Hydraulic Eng., 5(4), 377-386.
  18. X.Y. Mao. and Y. Xiao (2006), "Seismic behavior of confined square CFT columns", Eng. Struct., 28(10), 1378- 1386 https://doi.org/10.1016/j.engstruct.2006.01.015
  19. Xiao., W. He., and K. K. Choi., (2005), "Confined Concrete-Filled Tubular Columns", J. Struct. Eng. -ASCE., 131(3), 488-497. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:3(488)
  20. Y. Xiao. and H. Wu., (2002) "Retrofit of Reinforced Concrete Columns Using Partially Stiffened Steel Jackets", J. Struct. Eng. -ASCE., 129(6), 725-732.
  21. Y. Xiao. and W. He., (2000) "Compressive behavior of concrete confined by carbon fiber composite jackets", J. Mater. Civil Eng. -ASCE., 12(2), 139-146. https://doi.org/10.1061/(ASCE)0899-1561(2000)12:2(139)
  22. Y.S. Huang., Y. L. Long. and J. Cai., (2008), "Ultimate strength of rectangular concrete-filled steel tubular (CFT) stub columns under axial compression", Steel and Composite Struct., 8(2), 115-128. https://doi.org/10.12989/scs.2008.8.2.115
  23. Yun. Y. S., Kim. Y. S., Kim. J. H. and Choi. S. M., (2002), "Cyclic Testing for CFT Column-to-Bema Connections with New Diaphragm", Second Int. Symp. Steel Struct. 440-451.
  24. Z. Tao., L. H. Han. and D. Y. Wang., (2008), "Strength and ductility of stiffened thin-walled hollow steel structural sub columns filled with concrete", Thin-Wall. Struct., 46(10), 1113-1128. https://doi.org/10.1016/j.tws.2008.01.007
  25. Z. Tao., L. H. Han. and L. L. Wang., (2007), "Compressive and flexural behavior of CFRP-repaired concretefilled steel tubes after exposure to fire", J. Construct. Steel. Res., 63(8), 1116-1126. https://doi.org/10.1016/j.jcsr.2006.09.007

피인용 문헌

  1. Compressive performances of concrete filled Square CFRP-Steel Tubes (S-CFRP-CFST) vol.16, pp.5, 2014, https://doi.org/10.12989/scs.2014.16.5.455
  2. Experimental and Theoretical Research on the Compression Performance of CFRP Sheet Confined GFRP Short Pipe vol.2014, 2014, https://doi.org/10.1155/2014/109692
  3. FRP-Confined Circular Concrete-Filled Thin Steel Tubes under Axial Compression vol.15, pp.5, 2011, https://doi.org/10.1061/(ASCE)CC.1943-5614.0000217
  4. Flexural Performances of Square Concrete Filled CFRP-Steel Tubes (S-CF-CFRP-ST) vol.18, pp.8, 2015, https://doi.org/10.1260/1369-4332.18.8.1319
  5. Cyclic lateral response of FRP-confined circular concrete-filled steel tubular columns vol.124, 2016, https://doi.org/10.1016/j.jcsr.2016.05.006
  6. FRP-confined circular concrete-filled steel tubular columns under cyclic axial compression vol.94, 2014, https://doi.org/10.1016/j.jcsr.2013.11.003
  7. Uni-axial behaviour of normal-strength CFDST columns with external steel rings vol.13, pp.6, 2012, https://doi.org/10.12989/scs.2012.13.6.587
  8. Behaviour of CFRP externally-reinforced circular CFST members under combined tension and bending vol.106, 2015, https://doi.org/10.1016/j.jcsr.2014.12.007
  9. Study on Axial Compressive Capacity of FRP-Confined Concrete-Filled Steel Tubes and Its Comparisons with Other Composite Structural Systems vol.2017, 2017, https://doi.org/10.1155/2017/6272754
  10. Static behavior of axially compressed square concrete filled CFRP-steel tubular (S-CF-CFRP-ST) columns with moderate slenderness vol.110, 2017, https://doi.org/10.1016/j.tws.2016.10.019
  11. Stress–strain model for concrete in FRP-confined steel tubular columns vol.49, 2013, https://doi.org/10.1016/j.engstruct.2012.11.001
  12. Axial and lateral stress-strain model for concrete-filled steel tubes with FRP jackets vol.126, 2016, https://doi.org/10.1016/j.engstruct.2016.07.059
  13. Axial compressive behaviour of circular CFFT: Experimental database and design-oriented model vol.21, pp.4, 2016, https://doi.org/10.12989/scs.2016.21.4.921
  14. Strengthening of steel structures with fiber-reinforced polymer composites vol.78, 2012, https://doi.org/10.1016/j.jcsr.2012.06.011
  15. Experimental investigation on the seismic performance of GFRP-wrapped thin-walled steel tube confined RC columns vol.110, 2016, https://doi.org/10.1016/j.engstruct.2015.11.043
  16. Seismic performance of FRP-reinforced concrete-filled thin-walled steel tube considering local buckling vol.37, pp.9, 2018, https://doi.org/10.1177/0731684418756514
  17. Experimental and theoretical research on the compression performance of CFRP sheet confined GFRP short pole vol.40, pp.2, 2010, https://doi.org/10.12989/sem.2011.40.2.215
  18. Lateral confining action of mortar-filled sleeve reinforcement splice vol.41, pp.3, 2012, https://doi.org/10.12989/sem.2012.41.3.379
  19. Uni-axial behaviour of normal-strength concrete-filled-steel-tube columns with external confinement vol.3, pp.6, 2012, https://doi.org/10.12989/eas.2012.3.6.889
  20. Research on Dynamic Response of Concrete-Filled Steel Tube Columns Confined with FRP under Blast Loading vol.2019, pp.None, 2019, https://doi.org/10.1155/2019/8692310
  21. Behavior of Circular Fiber-Reinforced Polymer-Steel-Confined Concrete Columns Subjected to Reversed Cyclic Loads: Experimental Studies and Finite-Element Analysis vol.145, pp.9, 2019, https://doi.org/10.1061/(asce)st.1943-541x.0002373
  22. Behaviour of FRP composite columns: Review and analysis of the section forms vol.9, pp.2, 2010, https://doi.org/10.12989/acc.2020.9.2.125
  23. Experimental study on the cyclic behavior of ultra high performance concrete-filled steel tube beam-columns vol.23, pp.5, 2010, https://doi.org/10.1177/1369433219886456
  24. Monotonic axial compressive behaviour and confinement mechanism of square CFRP-steel tube confined concrete vol.217, pp.None, 2010, https://doi.org/10.1016/j.engstruct.2020.110802
  25. Finite-element modelling of concrete-filled steel tube columns wrapped with CFRP vol.173, pp.11, 2010, https://doi.org/10.1680/jstbu.19.00011
  26. Hysteretic Behavior of Specimens of Circular Concrete-Filled CFRP-Steel Tubular Beam-Column vol.2021, pp.None, 2010, https://doi.org/10.1155/2021/9933884
  27. Seismic behavior of CFRP confined rectangular CFST columns using high-strength materials: Numerical analysis and restoring force model vol.34, pp.None, 2010, https://doi.org/10.1016/j.istruc.2021.10.010
  28. Analysis of Bearing Capacity of Circular Concrete Filled CFRP-Steel Tubular Beam-Column vol.26, pp.1, 2022, https://doi.org/10.1007/s12205-021-2103-5
  29. Behaviors of FRP confined rectangular concrete-filled thin-walled steel tubular stub columns using high-strength materials under axial load vol.280, pp.None, 2010, https://doi.org/10.1016/j.compstruct.2021.114915
  30. Axial compressive behavior of CFRP confined rectangular CFT columns using high-strength materials: Numerical analysis and carrying capacity model vol.36, pp.None, 2010, https://doi.org/10.1016/j.istruc.2021.12.061