Title:
Concrete Columns Reinforced with High-Strength Steel Subjected to Reversed Cycle Loading
Author(s):
Yizhu Li, Shuangyin Cao, and Denghu Jing
Publication:
Structural Journal
Volume:
115
Issue:
4
Appears on pages(s):
1037-1048
Keywords:
bond failure; columns; cycle loading; drift capacity; flexural strength; high-strength steel bar
DOI:
10.14359/51701296
Date:
7/1/2018
Abstract:
The use of high-strength steel bars in concrete columns can reduce steel congestion and construction costs. The purpose of this study is to investigate the seismic behavior of concrete columns with high strength steel bars. Six concrete columns were subjected to reversed cycle loading: two columns were reinforced with conventional steel bars (HRB400) and four columns were reinforced longitudinally with high-strength steel bars (HRB600). Other experimental variables were: axial compressive stress (0.2fc, 0.4fc, and 0.5fc) and spacing of transverse reinforcement. Test results showed that columns reinforced with high-strength steel bars exhibited larger flexural strength and energy dissipation, similar drift capacity, and smaller ductility when compared with the control columns. High axial compressive stress can enhance the flexural strength of columns with high-strength steel bars within the bounds of the variables tested. Columns with high-strength steel bars sustained bond failure around the longitudinal bars, raising questions about degradation in the strength and stiffness of columns, as well as a decrease of longitudinal bar strains.
Related References:
1. ACI Committee 318, “Building Code Requirements for Structural Concrete (ACI 318-14) and Commentary (ACI 318R-14),” American Concrete Institute, Farmington Hills, MI, 2014, 520 pp.
2. NZS Committee P 3101, “Concrete Structures Standard—The Design of Concrete Structures (NZS3101 Part 1),” Standards New Zealand, Wellington, New Zealand, 2006, 256 pp.
3. GB 50010-2010, “Code for Design of Concrete Structures,” China Architecture & Building Press, Beijing, China, 2011, 425 pp. (in Chinese)
4. Restrepo, J. I.; Seible, F.; Stephan, B.; and Schoettler, M. J., “Seismic Testing of Bridge Columns Incorporating High-Performance Materials,” ACI Structural Journal, V. 103, No. 4, July-Aug. 2006, pp. 496-504.
5. Sokoli, D., and Ghannoum, W. M., “High-Strength Reinforcement in Columns under High Shear Stresses,” ACI Structural Journal, V. 113, No. 3, May-June 2016, pp. 605-614. doi: 10.14359/51688203
6. ATC-115, “Roadmap for the Use of High-Strength Reinforcement in Reinforced Concrete Design,” Applied Technology Council, Redwood City, CA, 2015, 197 pp.
7. Su, J. S.; Wang, J. J.; Bai, Z. Z.; Wang, W. B.; and Zhao, D. X., “Influence of Reinforcement Buckling on the Seismic Performance of Reinforced Concrete Columns,” Engineering Structures, V. 103, 2015, pp. 174-188. doi: 10.1016/j.engstruct.2015.09.007
8. Link, T. B., “Seismic Performance of Reinforcement Concrete Bridge Columns Constructed with Grade 80 Reinforcement,” master’s thesis, Oregon State University, Corvallis, OR, June 2014, 87 pp.
9. Rautenberg, J. M.; Pujol, S.; Tavallali, H.; and Lepage, A., “Drift Capacity of Concrete Columns Reinforced with High-Strength Steel,” ACI Structural Journal, V. 110, No. 2, Mar.-Apr. 2013, pp. 307-317.
10. Lepage, A.; Tavallali, H.; Pujol, S.; and Rautenberg, J. M., “High-Performance Steel Bars and Fibers as Concrete Reinforcement for Seismic-Resistant Frames,” Advances in Civil Engineering, V. 2012, 2012, pp. 1-13. doi: 10.1155/2012/450981
11. Ibarra, L., and Bishaw, B., “High-Strength Fiber-Reinforced Concrete Beam-Columns with High-Strength Steel,” ACI Structural Journal, V. 113, No. 1, Jan.-Feb. 2016, pp. 147-156. doi: 10.14359/51688066
12. Tavallali, H.; Lepage, A.; Rautenberg, J. M.; and Pujol, S., “Concrete Beams Reinforced with High-Strength Steel Subjected to Displacement Reversals,” ACI Structural Journal, V. 111, No. 5, Sept.-Oct. 2014, pp. 1037-1047. doi: 10.14359/51686967
13. Chun, S. C., “Lap Splice Test Using High-Strength Headed Bars of 550 MPa (80 ksi) Yield Strength,” ACI Structural Journal, V. 112, No. 6, Nov.-Dec. 2015, pp. 679-688. doi: 10.14359/51687936
14. Hwang, H. J.; Park, H. G.; Choi, W. S.; Chung, L.; and Kim, J. K., “Cyclic Loading Test for Beam-Column Connections with 600 MPa (87 ksi) Beam Flexural Reinforcing Bars,” ACI Structural Journal, V. 111, No. 4, July-Aug. 2014, pp. 913-924. doi: 10.14359/51686920
15. Choi, W. S.; Park, H. G.; Chung, L.; and Kim, J. K., “Experimental Study for Class B Lap Splice of 600 MPa (87 ksi) Reinforcing Bars,” ACI Structural Journal, V. 111, No. 1, Jan.-Feb. 2014, pp. 49-58.
16. Ou, Y. C., and Kurniawan, D. P., “Shear Behavior of Reinforced Concrete Columns with High-Strength Steel and Concrete,” ACI Structural Journal, V. 112, No. 1, Jan.-Feb. 2015, pp. 35-45. doi: 10.14359/51686822
17. Ou, Y. C., and Kurniawan, D. P., “Effect of Axial Compression on Shear Behavior of High-Strength Reinforced Concrete Columns,” ACI Structural Journal, V. 112, No. 2, Mar.-Apr. 2015, pp. 209-219.
18. Paultre, P.; Legeron, F.; and Mongeau, D., “Influence of Concrete Strength and Transverse Reinforcement Yield Strength on Behavior of High-Strength Concrete Columns,” ACI Structural Journal, V. 98, No. 4, July-Aug. 2001, pp. 490-501.
19. Brooke, N. J.; Megget, L. M.; and Ingham, J. M., “Bond Performance of Interior Beam-Column Joints with High-Strength Reinforcement,” ACI Structural Journal, V. 103, No. 4, July-Aug. 2006, pp. 596-603.
20. EI-Hacha, R.; EI-Agroudy, H.; and Rizkalla, S. H., “Bond Characteristics of High-Strength Steel Reinforcement,” ACI Structural Journal, V. 103, No. 6, Nov.-Dec. 2006, pp. 771-781.
21. Trejo, D.; Link, T. B.; and Barbosa, A. R., “Effect of Reinforcement Grade and Ratio on Seismic Performance of Reinforced Concrete Columns,” ACI Structural Journal, V. 113, No. 5, Sept.-Oct. 2016, pp. 907-916. doi: 10.14359/51689015
22. Lim, J. J.; Park, H. G.; and Eom, T. S., “Cyclic Load Tests of Reinforced Concrete Columns with High-Strength Bundled Bars,” ACI Structural Journal, V. 114, No. 1, Jan.-Feb. 2017, pp. 197-207.
23. Alaee, P., and Li, B., “High-Strength Concrete Interior Beam-Column Joints with High-Yield-Strength Steel Reinforcements,” Journal of Structural Engineering, ASCE, V. 143, No. 7, 2017, pp. 1-12. doi: 10.1061/(ASCE)ST.1943-541X.0001773
24. Lee, H. J., and Chang, C. J., “High-Strength Reinforcement in Exterior Beam-Column Joints under Cyclic Loading,” ACI Structural Journal, V. 114, No. 5, Sept.-Oct. 2017, pp. 1325-1338. doi: 10.14359/51700788
25. Wibowo, L. S. B.; Cheng, M. Y.; Huang, F. C.; and Tai, T. Y., “Effectiveness of High-Strength Hoops in High-Strength Flexural Members,” ACI Structural Journal, V. 114, No. 4, July-Aug. 2017, pp. 887-897. doi: 10.14359/51689620
26. Park, H. G.; Baek, J. W.; Lee, J. H.; and Shin, H. M., “Cyclic Loading Tests for Shear Strength of Low-Rise Reinforced Concrete Walls with Grade 550 MPa Bars,” ACI Structural Journal, V. 112, No. 3, May-June 2015, pp. 299-310. doi: 10.14359/51687406
27. Cheng, M. Y.; Hung, S. C.; Lequesne, R. D.; and Lepage, A., “Earthquake-Resistant Squat Walls Reinforced with High-Strength Steel,” ACI Structural Journal, V. 113, No. 5, Sept.-Oct. 2016, pp. 1065-1076. doi: 10.14359/51688825
28. GB/T 50081-2002, “Standard for Test Method of Mechanical Properties on Ordinary Concrete,” China Architecture & Building Press, Beijing, China, 2003, 33 pp. (in Chinese)
29. GB/T 228.1-2010, “Metallic Materials-Tensile Testing-Part 1: Method of Test at Room Temperature,” Standards Press of China, Beijing, China, 2011, 61 pp. (in Chinese)
30. Ichinose, T., “Splitting Bond Failure of Columns under Seismic Action,” ACI Structural Journal, V. 92, No. 5, Sep.-Oct. 1995, pp. 535-541.
31. Chen, F. J., and Yi, W. J., “Study on High-Strength Steel under Variable Amplitude Cyclic-Load Test,” Industrial Construction, V. 46, No. 7, 2016, pp. 154-158. (in Chinese)
32. Takeda, T.; Sozen, M. A.; and Nielsen, N. N., “Reinforced Concrete Response to Simulated Earthquakes,” Journal of the Structural Division, ASCE, V. 96, No. 12, 1970, pp. 2557-2573.
33. Sezen, H., and Setzler, E. J., “Reinforcement Slip in Reinforced Concrete Columns,” ACI Structural Journal, V. 105, No. 3, May-June 2008, pp. 280-289.