Steel and Composite Structures

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Research on flexural bearing capacity of cold-formed thin-walled steel and reinforced concrete sandwich composite slabs

  • Qiao, Wentao (School of Civil Engineering, Shi Jiazhuang Tiedao University) ;
  • Huang, Zhiyuan (School of Civil Engineering, Shi Jiazhuang Tiedao University) ;
  • Yan, Xiaoshuo (School of Civil Engineering, Shi Jiazhuang Tiedao University) ;
  • Wang, Dong (RC Companies) ;
  • Meng, Lijun (School of Civil Engineering, Shi Jiazhuang Tiedao University)
  • Received : 2021.02.27
  • Accepted : 2022.10.25
  • Published : 2022.10.25
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Abstract

The aim of this paper is to study the mechanical behaviors of the cold-formed thin-walled steel and reinforced concrete sandwich composite slab (CTS&RC-SCS) under vertical loads and to develop the calculation methods of its flexural bearing capacity and section stiffness. Two CTS&RC-SCS specimens were designed and manufactured to carry out the static loading test, and meanwhile, the numerical simulation analyses based on finite element method were implemented. The comparison between experimental results and numerical analysis results shows that the CTS&RC-SCS has good flexural capacity and ductility, and the accuracy and rationality of the numerical simulation analysis are verified. Further, the variable parameter analysis results indicate that neither increasing the concrete strength grade nor increasing the thickness of C-sections can significantly improve the flexural capacity of CTS&RC-SCS. With the increase of the ratio of longitudinal bars and the thickness of the composite slab, the flexural capacity of CTS&RC-SCS will be significantly increased. On the basis of experimental research and numerical analysis above, the calculation formula of the flexural capacity of CTS&RC-SCS was deduced according to the plastic section design theory, and section stiffness calculation formula was proposed according to the theory of transformed section. In terms of the ultimate flexural capacity and mid-span deflection, the calculated values based on the formulas and the experimental values are in good agreement.

Keywords

Acknowledgement

This research was funded by Science and Technology Research Key Project in Higher Institutions of Hebei Province (ZD2018250), Local Science and Technology Development Fund Project Guided by Central Government (206Z7601G) and Natural Science Foundation of Hebei Province (E2020210074 & E2022210084).

References

  1. Altoubat, S., Ousmane, H. and Barakat, S. (2016), "Experimental study of in-plane shear behavior of fiber-reinforced concrete composite slabs", J. Struct. Eng., 142(3), 04015156. https://doi.org/ 10.1061/(ASCE)ST.1943-541X.0001413.
  2. BS 5950-4 (1994), British Standard, Structural Use of Steelwork in Building Part 4: Code of Practice for Design of Composite Slabs with Profiled Steel Sheeting.
  3. Deng, J., Ma, Z.J., Liu, A., Zhou, T. and You, C. (2017), "Seismic performance of composite column with double plastic hinges", Compos. Struct., 182, 435-446. http://dx.doi.org/10.1016/j.compstruct.2017.09.024.
  4. Florides, M.M. and Cashell, K.A. (2017), "Numerical modelling of composite floor slabs subject to large deflections", Structures, 9, 112-122. http://dx.doi.org/10.1016/j.istruc.2016.10.003.
  5. Francisco, T. and Liu, J. (2016), "Application of experimental results to computational evaluation of structural integrity of steel gravity framing systems with composite slabs", J. Struct. Eng., 142(3), 04015152. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001444.
  6. Jiansheng, F., Shuangke, G., Ran, D., Jun, Z. and Zhengjie, S. (2020), E"xperimental and analytical research on the flexural behaviour of steel-ECC composite beams under negative bending moments", Eng. Struct., 210, 110309. https://doi.org/10.1016/j.engstruct.2020.110309
  7. Kyvelou, P., Gardner, L. and Nethercot, D.A. (2018), "Finite element modelling of composite cold-formed steel flooring systems", Eng. Struct., 158, 28-42. https://doi.org/10.1016/j.engstruct.2017.12.024.
  8. Lacki, P., Kasza, P. and Adamus, K. (2019), "Optimization of composite dowels shape in steel-concrete composite floor", Compos. Struct., 222, 110902. https://doi.org/10.1016/j.compstruct.2019.110902.
  9. Lee, H.J., Park, H.G. and Choi, I.R. (2019), "Eccentric compression behavior of concrete-encased-and-filled steel tube columns with high-strength circular steel tube", Thin-Wall. Struct., 144, 106339. https://doi.org/10.1016/j.tws.2019.106339.
  10. Lee, L.H., Quek, S.T. and Ang, K.K. (2001), "Negative moment behaviour of cold-formed steel deck and concrete composite slabs", J. Construct. Steel Res., 57(4), 401-415. https://doi.org/10.1016/S0143-974X(00)00023-7
  11. Liu, Y., Guo, L., Qu, B. and Zhang, S. (2017), Experimental investigation on the flexural behavior of steel-concrete composite beams with U-shaped steel girders and angle connectors", Eng. Struct., 131, 492-502. https://doi.org/10.1016/j.engstruct.2016.10.037.
  12. Narayanan, R. (1988), Steel-Concrete Composite Structures, CRC Press.
  13. Oehlers, D. and Bradford, M.A. (1995), Composite Steel and Concrete Structural Members. Australia: Fundamental Behavior.
  14. Pereira, M. and Simoes, R. (2019), "Contribution of steel sheeting to the vertical shear capacity of composite slabs", J. Construct. Steel Res., 161, 275-284. https://doi.org/10.1016/j.jcsr.2019.07.005.
  15. Qiao, W., Yan, X., Zhu, R., Wang, F. and Wang, D. (2020), "Flexural properties of new cold-formed thin-walled steel and concrete composite slabs", J. Build. Eng., 31, 101441. https://doi.org/10.1016/j.jobe.2020.101441.
  16. Shariati, M., Tahmasbi, F., Mehrabi, P., Bahadori, A. and Toghroli, A. (2020), "Monotonic behavior of C and L shaped angle shear connectors within steel-concrete composite beams: an experimental investigation", Steel Compos. Struct., 35(2), 237-247. https://doi.org/10.12989/scs.2020.35.2.237.
  17. Siddh, S.P., Patil, Y.D. and Patil, H.S. (2017), "Experimental studies on behaviour of composite slab with profiled steel sheeting", Materials Today: Proceedings, 4(9), 9792-9796. https://doi.org/10.1016/j.matpr.2017.06.268
  18. Waldmann, D., May, A. and Thapa, V.B. (2017), "Influence of the sheet profile design on the composite action of slabs made of lightweight woodchip concrete", Construct. Build. Mater., 148, 887-899. http://dx.doi.org/10.1016/j.conbuildmat.2017.04.193.
  19. Wang, W., Wang, Y. and Lu, Z. (2018), "Experimental study on seismic behavior of steel plate reinforced concrete composite shear wall", Eng. Struct., 160, 281-292. https://doi.org/10.1016/j.engstruct.2018.01.050
  20. Xu, G.D., Yang, F., Zeng, T., Cheng, S. and Wang, Z.H. (2016), "Bending behavior of graded corrugated truss core composite sandwich beams", Compos. Struct., 138, 342-351. http://dx.doi.org/10.1016/j.compstruct.2015.11.057.
  21. Yan, J.B., Wang, Z., Luo, Y.B. and Wang, T. (2019), "Compressive behaviours of novel SCS sandwich composite walls with normal weight concrete", Thin-Wall. Struct., 141, 119-132. https://doi.org/10.1016/j.tws.2019.01.051.
  22. Zhang, K., Seo, J. and Varma, A.H. (2020), "Steel-plate composite walls: Local buckling and design for axial compression", J. Struct. Eng., 146(4), 04020044.1-04020044.15. https://doi.org/10.1061/(ASCE)ST.1943-541X.0002545.
  23. Zhang, W., Wang, K., Chen, Y. and Ding, Y. (2019), "Experimental study on the seismic behaviour of composite shear walls with stiffened steel plates and infilled concrete", Thin-Wall. Struct., 144, 106279. https://doi.org/10.1016/j.tws.2019.01.051.
  24. Zhou, J., Li, P. and Guo, N. (2020), "Seismic performance assessment of a precast concrete-encased CFST composite wall with twin steel tube connections", Eng. Struct., 207, 110240. https://doi.org/10.1016/j.engstruct.2020.110240.
  25. Zhou, X., Shi, Y., Xu, L., Yao, X. and Wang, W. (2019), "A simplified method to evaluate the flexural capacity of lightweight cold-formed steel floor system with oriented strand board subfloor", Thin-Wall. Struct., 134, 40-51. https://doi.org/10.1016/j.tws.2018.09.006.