Computers and Concrete

  • 제24권6호
  • /
  • Pages.513-525
  • /
  • 2019
  • /
  • 1598-8198(pISSN)
  • /
  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Damage and stiffness research on steel shape steel fiber reinforced concrete composite beams

  • Xu, Chao (College of Civil and Transportation Engineering, Hohai University) ;
  • Wu, Kai (College of Civil and Transportation Engineering, Hohai University) ;
  • Cao, Ping zhou (College of Civil and Transportation Engineering, Hohai University) ;
  • Lin, Shi qi (College of Civil and Transportation Engineering, Hohai University) ;
  • Xu, Teng fei (Institute of Civil and Architectural Engineering, Tongling University)
  • 투고 : 2019.08.28
  • 심사 : 2019.10.13
  • 발행 : 2019.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

In this work, an experimental research has been performed on Steel Fiber-Steel Reinforced Concrete (SFSRC)specimens subjected to four-point bending tests to evaluate the feasibility of mutual replacement of steel fibers and conventional reinforcement through studying failure modes, load-deflection curves, stiffness of characteristic points, stiffness degradation curves and damage analysis. The variables considered in this experiment included steel fiber volume percentage with and without conventional reinforcements (stirrups or steel fibers) with shear span depth ratios of S/D=2.5 and 3.5. Experimental results revealed that increasing the volume percentage of steel fiber decreased the creation and propagation of shear and bond cracks, just like shortening the stirrups spacing. Higher crack resistance and suturing ability of steel fiber can improve the stability of its bearing capacity. Both steel fibers and stirrups improved the stiffness and damage resistance of specimens where stirrups played an essential role and therefore, the influence of steel fibers was greatly weakened. Increasing S/D ratio also weakened the effect of steel fibers. An equation was derived to calculate the bending stiffness of SFSRC specimens, which was used to determine mid span deflection; the accuracy of the proposed equation was proved by comparing predicted and experimental results.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Natural Science Foundation, Central Universities

참고문헌

  1. ACI318-11 (2011), 318, Building Code Requirements for Structural Concrete (ACI318-11) and Commentary, ACI318-11, American Concrete Institute, Farmington Hills, MI, USA.
  2. Anderson, D. (2014), Eurocode 4-Design of Composite Steel and Concrete Structures.
  3. Aoude, H., Belghiti, M., Cook, W.D. and Mitchell, D. (2012), "Response of steel fiber-reinforced concrete beams with and without stirrups", ACI Struct. J., 109(3), 359-367.
  4. Biolzi, L. and Cattaneo, S. (2017), "Response of steel fiber reinforced high strength concrete beams: Experiments and code predictions", Cement Concrete Compos., 77, 1-13. https://doi.org/10.1016/j.cemconcomp.2016.12.002
  5. Biolzi, L., Cattaneo, S. and Guerrini, G.L. (2000), "Fracture of plain and fiber-reinforced high strength mortar slabs with EA and ESPI monitoring", Appl. Compos. Mater., 7(1), 1-12. https://doi.org/10.1023/A:1008948125654
  6. CECS 38-2004 (2004), Technical Specifications for Fiber Reinforced Concrete Structures, China Plan Press, Beijing, China.
  7. CECS38:92 (1992), Specification for Design and Construction of Steel Fiber Reinforcement Concrete Structures, China Association for Engineering Construction Standardization, Beijing, China.
  8. Chen, Z., Chen, Y., Zheng, H. and Xue, J. (2013), "Analysis of influence factors and bond strength of steel-recycled aggregate concrete interface", Indus. Constr., 43(9), 1-6.
  9. Chen, Z., Zhou, W. and Xu, J. (2015), "Experimental study on bond-slip behavior of steel reinforced high strength concrete after high temperature", J. Build. Struct., 36(12), 106-115.
  10. Chen, Z.P., Liang, Y. and Chen, Y.L. (2014), "Research on bonding strength of steel and concrete with different bonding interfaces", Appl. Mech. Mater., 470, 838-841. https://doi.org/10.4028/www.scientific.net/AMM.470.838
  11. Ding, Y., Zhang, F., Torgal, F. and Zhang, Y. (2012), "Shear behaviour of steel fibre reinforced self-consolidating concrete beams based on the modified compression field theory", Compos. Struct., 94(8), 2440-2449. https://doi.org/10.1016/j.compstruct.2012.02.025
  12. Dinh, H.H., Parra-Montesinos, G.J. and Wight, J.K. (2010), "Shear strength model for steel fiber reinforced concrete beams without stirrup reinforcement", J. Struct. Eng., 137(10), 1039-1051. https://doi.org/10.1061/(asce)st.1943-541x.0000362
  13. Eltobgy, H.H. (2013), "Structural design of steel fibre reinforced concrete in-filled steel circular columns", Steel Compos. Struct., 14(3), 267-282. https://doi.org/10.12989/scs.2013.14.3.267
  14. Fantilli, A.P., Vallini, P. and Chiaia, B. (2011), "Ductility of fiberreinforced self-consolidating concrete under multi-axial compression", Cement Concrete Compos., 33(4), 520-527. https://doi.org/10.1016/j.cemconcomp.2011.02.007
  15. FIB. (2013), fib Model Code for Concrete Structures 2010, 978-3-433-03061-5, Ernst Sohn Pub.
  16. Foraboschi, P. (2016), "Versatility of steel in correcting construction deficiencies and in seismic retrofitting of RC buildings", J. Build. Eng., 8, 107-122. https://doi.org/10.1016/j.jobe.2016.10.003
  17. Gao, D.Y. and Zhang, M. (2013), "Calculation method for stiffness of steel fiber reinforced high-strength concrete beams based on effective moment of inertia", China J. Highw. Tran., 26(5), 62-68.
  18. GB 50010-2010 (2010), Code for Design of Concrete Structures, China Building Industry Press, Beijing, China.
  19. Jang, S.J. and Yun, H.D. (2018), "Combined effects of steel fiber and coarse aggregate size on the compressive and flexural toughness of high-strength concrete", Compos. Struct., 185, 203-211. https://doi.org/10.1016/j.compstruct.2017.11.009
  20. JG-T 472-2015 (2015), Steel Fiber Reinforced Concrete, Ministry of Housing and Urban Rural Development of People's Republic of China, Beijing, China.
  21. JGJ138-2016 (2016), Code for Design of Composite Structures, Ministry of Housing and Urban Rural Development of People's Republic of China, Beijing, China.
  22. Kim, K.S., Lee, D.H., Hwang, J.H. and Kuchma, D.A. (2012), "Shear behavior model for steel fiber-reinforced concrete members without transverse reinforcements", Compos. Part B: Eng., 43(5), 2324-2334. https://doi.org/10.1016/j.compositesb.2011.11.064
  23. Li, J., Qiu, D. and Yu, K. (2015), "Study on bond-slip behavior between spaped steel and concrete in SRC structures after exposed to high temperature", En. Mech., 32(2), 190-200.
  24. Li, J., Wang, G., Qiu, D. and Yu, K. (2012), "Study on the force transfer behavior of SRC members with stud shear connectors", China Civil Eng. J., 45(12), 74-82.
  25. Park, R. (1989), "Evaluation of ductility of structures and structural assemblages from laboratory testing", Bull. NZ Nat. Soc. Earthq. Eng., 22(3), 155-166.
  26. Roufaiel, M.S. and Meyer, C. (1987), "Analytical modeling of hysteretic behavior of R/C frames", J. Struct. Eng., 113(3), 429-444. https://doi.org/10.1061/(ASCE)0733-9445(1987)113:3(429)
  27. Shansuo, Z., Guozhuan, D., Yong, Y., Maohong, Y. and Junfeng, Z. (2003), "Experimental study on bond-slip performance between steel shape and concrete in SRC structures", Eng. Mech., 20(5), 63-69. (in Chinese) https://doi.org/10.3969/j.issn.1000-4750.2003.05.012
  28. Tao, Z. and Yu, Q. (2012), "Residual bond strength in steel reinforced concrete columns after fire exposure", Fire Saf. J., 53, 19-27. https://doi.org/10.1016/j.firesaf.2012.06.010
  29. Wang, W.H., Han, L.H., Tan, Q.H. and Tao, Z. (2017), "Tests on the steel-concrete bond strength in steel reinforced concrete (SRC) columns after fire exposure", Fire Technol., 53(2), 917-945. https://doi.org/10.1007/s10694-016-0610-6
  30. Won, J.P., Hong, B.T., Choi, T.J., Lee, S.J. and Kang, J.W. (2012), "Flexural behaviour of amorphous micro-steel fibre-reinforced cement composites", Compos. Struct., 94(4), 1443-1449. https://doi.org/10.1016/j.compstruct.2011.11.031
  31. Wu, K., Chen, F., Chen, C., Zheng, H. and Xu, J. (2019), "Analysis of the load transfer mechanism and bond stress components in Steel and Steel Fiber Reinforced Concrete (SSFRC) structure", J. Struct. Eng., ASCE, 145(12), 04019160. https://doi.org/10.1061/(asce)st.1943-541x.0002441
  32. Wu, K., Chen, F., Xu, F., Xu, J. and Xu, C. (2019), "Experimental study on interfacial bonding property and energy dissipation capacity between shape steel and steel fiber reinforced concrete", China Civil Eng. J., 3.
  33. Wu, K., Xue, J., Nan, Y. and Zhao, H. (2018), "Analysis on extension length of shape steel in transfer columns of SRC-RC hybrid structures", Int. J. Steel Struct., 18(3), 910-923. https://doi.org/10.1007/s13296-018-0038-6
  34. Xu, C., Fukada, S. and Masuya, H. (2016), "The impact vibrationbased fatigue damage assessment of steel and steel fiber reinforced concrete composite girder", Int. J. Steel Struct., 16(4), 1217-1226. https://doi.org/10.1007/s13296-016-0060-5
  35. Xu, C., Su, Q. and Masuya, H. (2017), "Static and fatigue performance of stud shear connector in steel fiber reinforced concrete", Steel Compos. Struct., 24(4), 467-479. https://doi.org/10.12989/scs.2017.24.4.467
  36. Yang, Y. (2003), "Study on the basic theory and its application of bond-slip between steel shape and concrete in SRC structures", Ph.D. Dissertation, Xi'an University of Architecture and Technology, Xi'an, China.
  37. YB9082-2006 (2006). Technical Specification for Steel Reinforced Concrete Structures, Metallurgical Industry Press, Beijing, China.
  38. Ying, W. and Chen, Z. (2016), "Interface bond force transfer mechanisms and its influence analysis between shape steel and high-strength concrete", China Civil Eng. J., 49(9), 53-63.
  39. Yoo, D.Y., Shin, H.O., Yang, J.M. and Yoon, Y.S. (2014), "Material and bond properties of ultra high performance fiber reinforced concrete with micro steel fibers", Compos. Part B: Eng., 58, 122-133. https://doi.org/10.1016/j.compositesb.2013.10.081
  40. Zheng, H., Chen, Z. and Su, Y. (2016), "Research on mechanical behavior and bearing capacity calculation method of steel reinforced recycle aggregate concrete combined component with stud connecters", Indus. Constr., 46(11), 97-104.
  41. Zheng, H., Chen, Z. and Xu, J. (2016), "Bond behavior of Hshaped steel embedded in recycled aggregate concrete under push-out loads", Int. J. Steel Struct., 16(2), 347-360. https://doi.org/10.1007/s13296-016-6008-y
  42. Zheng, S.S. and Li, l. (2012), Basic Performance and Design of Steel Reinforced High Strength and High Performance Concrete Structure, The Science Publishing Company, Beijing, China.