Steel and Composite Structures

  • 제39권5호
  • /
  • Pages.583-598
  • /
  • 2021
  • /
  • 1229-9367(pISSN)
  • /
  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Axial behavior of the steel reinforced lightweight aggregate concrete (SRLAC) short columns

  • Mostafa, Mostafa M.A. (Structural Engineering Department, School of Civil Engineering, Chang'an University) ;
  • Wu, Tao (Structural Engineering Department, School of Civil Engineering, Chang'an University) ;
  • Liu, Xi (Structural Engineering Department, School of Civil Engineering, Chang'an University) ;
  • Fu, Bo (Structural Engineering Department, School of Civil Engineering, Chang'an University)
  • 투고 : 2019.04.16
  • 심사 : 2021.05.06
  • 발행 : 2021.06.10
⟨ 이전 논문 다음 논문 ⟩

초록

The composite steel reinforced concrete (SRC) columns have been widely used in Structural Engineering due to their good performances. Many studies have been done on the SRC columns' performances, but they focused on the ordinary types with conventional configurations and materials. In this study, nine new types of steel reinforced lightweight aggregate concrete (SRLAC) short columns with cross-shaped (+shaped and X-shaped) steel section were tested under monotonically axial compressive load; the studied parameters included steel section ratio, steel section configuration, ties spacing, lightweight aggregate concrete (LWAC) strength, and longitudinal bars ratio. From the results, it could be found that the specimens with larger ties ratio, concrete strength, longitudinal bars ratio, and steel section ratio achieved great strength and stiffness due to the excellent interaction between the concrete and steel. The well-confined concrete core could strengthen the steel section. The ductility and toughness of the specimens were influenced by the LWAC strength, steel section ratio, and longitudinal bars ratio; in addition, larger ties ratio with smaller LWAC strength led to better ductility and toughness. The load transfer between concrete and steel section largely depends on the LWAC strength, and the ultimate strength of the new types of SRLAC short columns could be approximately predicted, referring to the codes' formulas of ordinary types of steel reinforced concrete (SRC) columns. Among the used codes, the BS-5400-05 led to the most conservative results.

키워드

과제정보

The first author would like to thank the Chinese Scholarship Council (CSC) and the Egyptian Ministry of Higher Education for supporting his Ph.D.degree scholarship. The authors gratefully acknowledge the funding supports for this research by the National Natural Science Foundation of China (51878054, 51578072, 51708036, and 51908048), the Fundamental Research Funds for the Central Universities (300102288401), and the Natural Science Foundation of Shaanxi Province (2017JQ5092).

참고문헌

  1. 50081-2019, G.T. (2019), Standard for test methods of concrete physical and mechanical properties, Press of China, Beijing, China.
  2. Abd Elrahman, M., El Madawy, M.E., Chung, S.Y., Sikora, P. and Stephan, D. (2019), "Preparation and Characterization of Ultra-Lightweight Foamed Concrete Incorporating Lightweight Aggregates", Appl. Sci., 9(7), 1447. https://doi.org/10.3390/app9071447.
  3. ACI318M-14 (2014), Building code requirements for structural concrete and commentary, American Concrete Institute, Farmington Hills, MI, USA.
  4. ACI318R-19 (2019), Building code requirements for structural concrete and commentary, Aci Committee
  5. AISC (2016), Specification for structural steel buildings American Institute for Steel Construction (ANSI/AISC 360-16), Chicago, Illinois, USA.
  6. Al-Shahari, A.M., Hunaiti, Y.M. and Ghazaleh, B.A. (2003), "Behavior of lightweight aggregate concrete-encased composite columns", Steel Compos. Struct., 3(2), 97-110. http://dx.doi.org/10.12989/scs.2003.3.2.097.
  7. An, G.H., Seo, J.K., Cha, S.L. and Kim, J.K. (2018), "An experimental and numerical study on long-term deformation of SRC columns", Comput. Concrete. 22(3), 261-267. http://dx.doi.org/10.12989/cac.2018.22.3.261.
  8. Bergmann, R. and Hanswille, G. (2006), "New design method for composite columns including high strength steel", composite constructions in steel and concrete V, Copyright ASCE. 381-389. https://doi.org/10.1061/40826(186)36.
  9. BS.5400-5 (2002), Steel, concrete and composite bridges; Part 5: Code of Practice for Design of Composite Bridges, BSI publications, London, UK.
  10. de-Sousa, J.B.M. and Caldas, R.B. (2005), "Numerical analysis of composite steel-concrete column of arbitrary cross section", J. Struct. Eng., 131(11), 1721-1730. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:11(1721).
  11. De Nardin, S. and El Debs, A. (2007), "Shear transfer mechanisms in composite columns: an experimental study", Steel Compos. Struct., 7(5), 377. http://dx.doi.org/10.12989/scs.2007.7.5.377.
  12. ECP-203 (2018), Egyptian code of practice for design and construction of concrete structures, Housing and Building National Research Center (HBRC), Cairo, Egypt.
  13. Ellobody, E. and Young, B. (2011), "Numerical simulation of concrete encased steel composite columns", J. Constr. Steel Res., 67(2), 211-222. https://doi.org/10.1016/j.jcsr.2010.08.003.
  14. Esaki, F. and Ono, M. (2001), "Effect of loading rate on mechanical behavior of SRC shearwalls", Steel Compos. Struct., 1(2), 201-212. http://dx.doi.org/10.12989/scs.2001.1.2.201.
  15. Eurocode-4 (2004), Design of composite steel and concrete structures, part 1.1: general rules and rules for buildings (BS-EN1994-1-1), British Standards Institution, London, UK.
  16. Fukuhara, M. and Minami, K. (2008). "Seismic performance of new type steel-concrete composite structures considering characteristic both SRC and CFT structures", Proceedings of the 14th World Conference on Earthquake Engineering, Beijing, China, October.
  17. GB/T228.1-2010 (2010), Metallic materials-tensile testing- Part 1: Method of test at room temperature, Press of China, Beijing, China.
  18. Gonzalez-Corrochano, B., Alonso-Azcarate, J. and Rodas, M. (2009), "Production of lightweight aggregates from mining and industrial wastes", J. Environ. Manage., 90(8), 2801-2812. https://doi.org/10.1016/j.jenvman.2009.03.009.
  19. JGJ138-2001 (2001), Technical specification for steel reinforced concrete, China Architecture and Building Press, Ministry of Construction of the People's Republic of China, Beijing
  20. Johansson, M. and Gylltoft, K. (2002), "Mechanical behavior of circular steel-concrete composite stub columns", J. Struct. Eng., 128(8), 1073-1081. https://doi.org/10.1061/(ASCE)0733-9445(2002)128:8(1073).
  21. Kayali, O. (2008), "Fly ash lightweight aggregates in high performance concrete", Constr. Build. Mater., 22(12), 2393-2399. https://doi.org/10.1016/j.conbuildmat.2007.09.001.
  22. Liang, C.Y., Chen, C., Weng, C., Yin, Y. and Wang, J. (2014), "Axial compressive behavior of square composite columns confined by multiple spirals", J. Constr. Steel Res., 103(103), 230-240. https://doi.org/10.1016/j.jcsr.2014.09.006.
  23. Mostafa, M.M.A., Wu, T. and Fu, B. (2021), "Axial behavior of steel reinforced lightweight aggregate concrete columns: Analytical studies", Steel Compos. Struct., 38(2), 223-239. https://doi.org/10.12989/scs.2021.38.2.223.
  24. Mostafa, M.M.A., Wu, T., Liu, X. and Fu, B. (2019), "The composite steel reinforced concrete column under axial and seismic loads: A review", Int. J. Steel. Struct., 19(6), 1969-1987. http://link.springer.com/article/10.1007/s13296-019-00257-9.
  25. Nematzadeh, M. and Ghadami, J. (2017), "Evaluation of interfacial shear stress in active steel tube-confined concrete columns", Comput. Concrete, 20(4), 469-481. DOI: http://dx.doi.org/10.12989/cac.2017.20.4.469.
  26. Ollgaard, J.G., Slutter, R.G. and Fisher, J.W. (1971), "Shear strength of stud connectors in lightweight and normalweight concrete", Eng. J AISC, 8(5), 55-64. https://preserve.lib.lehigh.edu/islandora/object/preserve%3Abp3378933.
  27. Rashad, A.M. (2018), "Lightweight expanded clay aggregate as a building material-An overview", Constr. Build. Mater., 170, 757-775. https://doi.org/10.1016/j.conbuildmat.2018.03.009.
  28. Tang, C.W. (2017), "Uniaxial bond stress-slip behavior of reinforcing bars embedded in lightweight aggregate concrete", Struct. Eng. Mech., 62(5), 651-661. http://dx.doi.org/10.12989/sem.2017.62.5.651.
  29. Tokgoz, S. and Dundar, C. (2008), "Experimental tests on biaxially loaded concrete-encased composite columns", Steel Compos. Struct., 8(5), 423-438. http://dx.doi.org/10.12989/scs.2008.8.5.423.
  30. Uy, B. (2001), "Axial compressive strength of short steel and composite columns fabricated with high stength steel plate", Steel Compos. Struct., 1(2), 171-185. http://dx.doi.org/10.12989/scs.2001.1.2.171.
  31. Wang, Q., Shi, Q. and Tao, Y. (2016a), "Experimental and numerical studies on the seismic behavior of steel reinforced concrete compression-bending members with new-type section steel", Adv. Struct. Eng., 19(2), 255-269. https://doi.org/10.1177/1369433215624320.
  32. Wang, Q., Shi, Q. and Tian, H. (2016b), "Experimental study on shear capacity of SRC joints with different arrangement and sizes of cross-shaped steel in column", Steel Compos. Struct., 21(2), 267-287. http://dx.doi.org/10.12989/scs.2016.21.2.267.
  33. Watanabe, Y. (1966), "Study on behaviour of strength of composite column consisted of H-shaped steel and light-weight concrete under axial force", T. Architect. Inst. Japan, 127, 15-21, 56. https://ci.nii.ac.jp/naid/110003882658/en/.
  34. Wu, T., Wei, H., Zhang, Y. and Liu, X. (2018), "Axial compressive behavior of lightweight aggregate concrete columns confined with transverse steel reinforcement", Adv. Mech. Eng., 10(3), 1-14. https://doi.org/10.1177/1687814018766632.
  35. Zhao, X., Wen, F., Chan, T.M. and Cao, S. (2019), "Theoretical stress-strain model for concrete in steel-reinforced concrete columns", J. Struct. Eng., 145(4), 04019009. https://doi.org/10.1061/(ASCE)ST.1943-541X.0002289
  36. Zhu, W.Q., Meng, G. and Jia, J.Q. (2013), "Experimental studies on axial load performance of high-strength concrete short columns", Struct. Build., 167(9), 509-519. https://doi.org/10.1680/stbu.13.00027.