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  2. Vol 8, No 3 (2022)
  3. Hassooni

Rehabilitation of Composite Column Subjected to Axial Load

Anas Nahidh Hassooni, Salah R. Al-Zaidee

Abstract


Concrete Filled Double Steel Tube (CFDST) columns are a modern technique of composite structural element that has fire resistance and has been adopted in high-rise building structures. The Concrete Filled Steel Tube (CFST) columns also have high strength and ductility due to composite action. This type of column CFST can sustain a heavy load with high performance and has been adopted in recent years in many countries around the world. The aim of the present work is to study the behavior and strength of rehabilitation of composite columns that are made from concrete core and surrounded steel tubes under the effect of axial compression loads with different height to diameter ratios such as 5.46, 10.91, and 16.37, respectively, by experimental tests. Double skin methodology is adopted to repair the damaged columns that were tested up to 85% of the ultimate load. Strength column capacity of double skin columns, axial and buckling deformations with axial and buckling strains are investigated. Test results showed that the repaired specimens up to 85% of the ultimate load had the same strength carrying capacity as compared with the control specimens, which had the same geometry. The ductility of an 800 mm specimen’s height is greater than the other tested specimens, while the stiffness of short specimens becomes high.

 

Doi: 10.28991/CEJ-2022-08-03-013

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Keywords


Double Skin Column; Composite Column; CFST; CFDST; Ductility.

References


Han, L.H. (2009). Concrete-filled steel tubular structures-theory and practice. (2nd Ed.). China Science Press, Beijing, China.

Dong, J. F., Wang, Q. Y., & Guan, Z. W. (2013). Structural behaviour of recycled aggregate concrete filled steel tube columns strengthened by CFRP. Engineering Structures, 48, 532–542. doi:10.1016/j.engstruct.2012.11.006.

Chang, X., Luo, X., Zhu, C., & Tang, C. (2014). Analysis of circular concrete-filled steel tube (CFT) support in high ground stress conditions. Tunnelling and Underground Space Technology, 43, 41–48. doi:10.1016/j.tust.2014.04.002.

Han, L. H., Li, W., & Bjorhovde, R. (2014). Developments and advanced applications of concrete-filled steel tubular (CFST) structures: Members. Journal of Constructional Steel Research, 100, 211–228. doi:10.1016/j.jcsr.2014.04.016.

Liu, H., Wang, Y., He, M., Shi, Y., & Waisman, H. (2015). Strength and ductility performance of concrete-filled steel tubular columns after long-term service loading. Engineering Structures, 100, 308–325. doi:10.1016/j.engstruct.2015.06.024.

Giakoumelis, G., & Lam, D. (2004). Axial capacity of circular concrete-filled tube columns. Journal of Constructional Steel Research, 60(7), 1049–1068. doi:10.1016/j.jcsr.2003.10.001.

Kaya, A., Dawood, M., & Gencturk, B. (2015). Repair of corroded and buckled short steel columns using concrete-filled GFRP jackets. Construction and Building Materials, 94, 20–27. doi:10.1016/j.conbuildmat.2015.06.040.

Tao, Z., Han, L. H., & Wang, L. L. (2007). Compressive and flexural behaviour of CFRP-repaired concrete-filled steel tubes after exposure to fire. Journal of Constructional Steel Research, 63(8), 1116–1126. doi:10.1016/j.jcsr.2006.09.007.

Lai, M. H., & Ho, J. C. M. (2014). Confinement effect of ring-confined concrete-filled-steel-tube columns under uni-axial load. Engineering Structures, 67, 123–141. doi:10.1016/j.engstruct.2014.02.013.

Almasslawi, A., Ekmekyapar, T., & Al-Eliwi, B. J. M. (2020). Repair of Buckled Concrete Filled Steel Tube Columns Subjected to Axial Compression. KSCE Journal of Civil Engineering, 24(5), 1499–1508. doi:10.1007/s12205-020-0321-x.

Ekmekyapar, T., & Al-Eliwi, B. J. M. (2017). Concrete filled double circular steel tube (CFDCST) stub columns. Engineering Structures, 135, 68–80. doi:10.1016/j.engstruct.2016.12.061.

Ramanagopal, S. (2018). Case Study on Double tube Stub columns. Indian Journal of Science and Technology, 11(21), 1–9. doi:10.17485/ijst/2018/v11i21/122490.

Yan, X. F., & Zhao, Y. G. (2020). Compressive strength of axially loaded circular concrete-filled double-skin steel tubular short columns. Journal of Constructional Steel Research, 170, 106114. doi:10.1016/j.jcsr.2020.106114.

Yan, X. F., Zhao, Y. G., Lin, S., & Zhang, H. (2021). Confining stress path-based compressive strength model of axially compressed circular concrete-filled double-skin steel tubular short columns. Thin-Walled Structures, 165, 107949. doi:10.1016/j.tws.2021.107949.

He, L., Lin, S., & Jiang, H. (2019). Confinement effect of concrete-filled steel tube columns with infill concrete of different strength grades. Frontiers in Materials, 6, 71. doi:10.3389/fmats.2019.00071.

Ke, X., Xiang, W., Peng, X., & Dan, Y. (2022). Axial Compression Performance and Residual Strength Calculation of Concrete-Encased CFST Composite Columns Exposure to High Temperature. Applied Sciences, 12(1), 480. doi:10.3390/app12010480.

Naji, A. J., Al-Jelawy, H. M., Saadoon, S. A., & Ejel, A. T. (2021). Rehabilitation and strengthening techniques for reinforced concrete columns: review. Journal of Physics: Conference Series, 1895(1), 012049. doi:10.1088/1742-6596/1895/1/012049.

Hadi, A. H., Hasgur, Z., & Hemzah, S. A. (2021). Rehabilitation of eccentrically loaded reinforced concrete columns using CFRP Products. Journal of Physics: Conference Series, 1973(1). doi:10.1088/1742-6596/1973/1/012209.

Jamkhaneh, M. E., & Kafi, M. A. (2019). Experimental Assessment of Partially Encased Composite Columns Behavior under Compressive and Bending Moment Loading”. Journal of Rehabilitation in Civil Engineering, 7–1, 70–82.

Al-Adawy, K. S., El.Shafey, N. F., & Kassem, M. E. (2021). Behavior of composite columns repaired by CFRP and subjected to uniaxial and biaxial eccentric load. HBRC Journal, 17(1), 289–328. doi:10.1080/16874048.2021.1938891.

ASTM C39. (2015). Compressive Strength of Cylindrical Concrete Specimens. ASTM International, Pennsylvania, United States.

ASTM C496-96. (2017). Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens. ASTM International, Pennsylvania, United States.

ASTM C293-08. (2010). Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Center-Point Loading). ASTM International, Pennsylvania, United States.

ASTM C597-02. (2016). Standard Test Method for Pulse Velocity through Concrete. ASTM International, Pennsylvania, United States.

ASTM A370-21. (2021). Standard Specifications for Carbon Steel bolts, Studs, and Threaded Rod 60 000 PSI Tensile Strength. ASTM International, Pennsylvania, United States.


Full Text: PDF

DOI: 10.28991/CEJ-2022-08-03-013

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