Steel and Composite Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Experimental study on concrete-encased composite columns with separate steel sections

  • Xiao, Congzhen (China Academy of Building Research) ;
  • Deng, Fei (Department of Civil Engineering, Tsinghua University) ;
  • Chen, Tao (China Academy of Building Research) ;
  • Zhao, Zuozhou (Department of Civil Engineering, Tsinghua University)
  • Received : 2015.11.19
  • Accepted : 2017.01.22
  • Published : 2017.03.20
⟨ Previous Next ⟩

Abstract

This paper presents an experimental study on the behavior of concrete-encased composite columns with multiseparate steel sections subjected to axial and eccentric loads. Six 1/4-scaled concrete-encased composite columns were tested under static loads. The specimens were identical in geometric dimensions and configurations, and the parameter of this experiment was the eccentricity ratio of the applied load. Each two of the specimens were loaded with 0, 10%, and 15% eccentricity ratios. The capacity, deformation pattern, and failure mode of the specimens were carefully examined. Test results indicate that full composite action between the concrete and the steel sections can be realized even though the steel sections do not connect with one another. The concrete-encased composite columns can develop stable behavior and sufficient deformation capacity by providing enough transverse reinforcing bars. Capacities of the specimens were evaluated based on both the Plain Section Assumption (PSA) method and the superimposition method. Results show that U.S. and Chinese codes can be accurate and safe in terms of bending capacities. Test results also indicate that the ACI 318 and Mirza methods give the best predictions on the flexural stiffness of this kind of composite columns.

Keywords

Acknowledgement

Supported by : ArcelorMittal

References

  1. ACI 318 (2008), Building code requirements for structural concrete and commentary; American Concrete Institute; Farmington Hills, MI, USA.
  2. AISC-LRFD (2016), Load and resistance factor design specifications for structural steel buildings; American Institute of Steel Construction; Chicago, IL, USA.
  3. ANSI/AISC (2010), Specification for structural steel buildings, American Institute of Steel Construction; Chicago, IL, USA.
  4. AIJ-SRC (1991), AIJ standards for structural calculation of steel reinforced concrete structures; Architectural Institute of Japan; Tokyo, Japan.
  5. Chen, C.C., Li, J.M. and Weng, C.C, (2005), "Experimental behaviour and strength of concrete-encased composite beam-columns with T-shaped steel section under cyclic loading", J. Constr. Steel Res., 61(7), 863-881. https://doi.org/10.1016/j.jcsr.2005.01.002
  6. Dundar, C., Tokgoz, S., Tanrikulu, A.K. and Baran, T. (2008), "Behaviour of reinforced and concrete-encased composite columns subjected to biaxial bending and axial load", Build. Environ., 43(6), 1109-1120. https://doi.org/10.1016/j.buildenv.2007.02.010
  7. El-Tawil, S. and Deierlein, G.G. (1999), "Strength and ductility of concrete encased composite columns", J. Struct. Eng., 125(9), 1009-1019. https://doi.org/10.1061/(ASCE)0733-9445(1999)125:9(1009)
  8. GB 50010 (2010), Code for design of concrete structures; Ministry of Housing and Urban-Rural Development of China; Beijing, China.
  9. GB 50017 (2003), Code for design of steel structures; Ministry of Housing and Urban-Rural Development of China; Beijing, China.
  10. Kim, C.S., Park, H.G., Chung, K.S. and Choi, I.R. (2011), "Eccentric axial load testing for concrete-encased steel columns using 800 MPa steel and 100 MPa concrete", J. Struct. Eng., 138(8), 1019-1031.
  11. Kim, C.S., Park, H.G., Chung, K.S. and Choi, I.R. (2013), "Eccentric axial load capacity of high-strength steel-concrete composite columns of various sectional shapes", J. Struct. Eng., 140(4), 04013091.
  12. Mirza, S.A. and Tikka, T.K. (1999), "Flexural stiffness of composite columns subjected to major axis bending", ACI Struct. J., 96(1), 19-28.
  13. Morino, S. (1998), "Recent developments in hybrid structures in Japan-research, design and construction", Eng. Struct., 20(4), 336-346. https://doi.org/10.1016/S0141-0296(97)00022-9
  14. Munoz, P.R. and Hsu, C.T.T. (1997), "Behavior of biaxially loaded concrete-encased composite columns", J. Struct. Eng., 123(9), 1163-1171. https://doi.org/10.1061/(ASCE)0733-9445(1997)123:9(1163)
  15. Naito, H., Akiyama, M. and Suzuki, M. (2010), "Ductility evaluation of concrete-encased steel bridge piers subjected to lateral cyclic loading", J. Bridge Eng., 16(1), 72-81. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000120
  16. Oh, M.H., Ju, Y.K., Kim, M.H. and Kim, S.D. (2006), "Structural performance of steel-concrete composite column subjected to axial and flexural loading", J. Asian Architect. Build. Eng., 5(1), 153-160. https://doi.org/10.3130/jaabe.5.153
  17. Roeder, C.W. (1998), "Overview of hybrid and composite systems for seismic design in the United States", Eng. Struct., 20(4), 355-363. https://doi.org/10.1016/S0141-0296(97)00035-7
  18. Ricles, J.M. and Paboojian, S.D. (1994), "Seismic performance of steel-encased composite columns", J. Struct. Eng., 120(8), 2474-2494. https://doi.org/10.1061/(ASCE)0733-9445(1994)120:8(2474)
  19. Shim, C.S., Chung, Y.S. and Yoon, J.Y. (2011), "Cyclic behavior of prefabricated circular composite columns with low steel ratio", Eng. Struct., 33(9), 2525-2534. https://doi.org/10.1016/j.engstruct.2011.04.024
  20. Tokgoz, S. and Dundar, C. (2008), "Experimental tests on biaxially loaded concrete-encased composite columns", Steel Compos. Struct., Int. J., 8(5), 423-438. https://doi.org/10.12989/scs.2008.8.5.423
  21. Tokgoz, S. and Dundar, C. (2012), "Tests of eccentrically loaded L-shaped section steel fiber high strength reinforced concrete and composite columns", Eng. Struct., 38(4), 134-141. https://doi.org/10.1016/j.engstruct.2012.01.009
  22. Weng, C., Yin, Y., Wang, J. and Liang, C. (2008), "Seismic cyclic loading test of SRC columns confined with 5-spirals", Science in China Series E: Technological Sciences, 51(5), 529-555. https://doi.org/10.1007/s11431-008-0067-z
  23. YB 9082 (2006), Technical specification of steel-reinforced concrete structures; Ministry of Housing and Urban-Rural Development of China; Beijing, China.
  24. Ye, L. and Ehua, F. (2000), "State-of-the-art of study on the behaviors of steel reinforced concrete structure", China Civil Eng. J., 33(5), 1-11.

Cited by

  1. Experimental study on the static performance of steel reinforced concrete columns with high encased steel ratios vol.27, pp.15, 2018, https://doi.org/10.1002/tal.1536
  2. Theoretical Stress–Strain Model for Concrete in Steel-Reinforced Concrete Columns vol.145, pp.4, 2019, https://doi.org/10.1061/(ASCE)ST.1943-541X.0002289
  3. Behavior of concrete columns confined with both steel angles and spiral hoops under axial compression vol.27, pp.6, 2018, https://doi.org/10.12989/scs.2018.27.6.747
  4. Experimental investigation on shear capacity of partially prefabricated steel reinforced concrete columns vol.28, pp.1, 2018, https://doi.org/10.12989/scs.2018.28.1.073