Structural Engineering and Mechanics

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Impact of openings on the structural performance of ferrocement I-Beams under flexural loads

  • Yousry B.I. Shaheen (Civil Engineering Department, Faculty of Engineering, Menoufia University) ;
  • Ghada M. Hekal (Civil Engineering Department, Faculty of Engineering, Menoufia University) ;
  • Ayman M. Elshaboury (Construction Engineering Department, Higher Institute of Engineering and Technology) ;
  • Ashraf M. Mahmoud (Civil Engineering Department, Faculty of Engineering, Modern University for Technology and Information (MTI))
  • Received : 2024.01.20
  • Accepted : 2024.04.29
  • Published : 2024.05.25
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Abstract

Investigating the impact of openings on the structural behavior of ferrocement I-beams with two distinct types of reinforcing metallic and non-metallic meshes is the primary goal of the current study. Up until failure, eight 250x200x2200 mm reinforced concrete I-beams were tested under flexural loadings. Depending on the kind of meshes used for reinforcement, the beams are split into two series. A control I-beam with no openings and three beams with one, two, and three openings, respectively, are found in each series. The two series are reinforced with three layers of welded steel meshes and two layers of tensar meshes, respectively, in order to maintain a constant reinforcement ratio. Structural parameters of investigated beams, including first crack, ultimate load, deflection, ductility index, energy absorption, strain characteristics, crack pattern, and failure mode were reported. The number of mesh layers, the volume fraction of reinforcement, and the kind of reinforcing materials are the primary factors that vary. This article presents the outcomes of a study that examined the experimental and numerical performance of ferrocement reinforced concrete I-beams with and without openings reinforced with welded steel mesh and tensar mesh separately. Utilizing ANSYS-16.0 software, nonlinear finite element analysis (NLFEA) was applied to illustrate how composite RC I-beams with openings behaved. In addition, a parametric study is conducted to explore the variables that can most significantly impact the mechanical behavior of the proposed model, such as the number of openings. The FE simulations produced an acceptable degree of experimental value estimation, as demonstrated by the obtained experimental and numerical results. It is also noteworthy to demonstrate that the strength gained by specimens without openings reinforced with tensar meshes was, on average, 22% less than that of specimens reinforced with welded steel meshes. For specimens with openings, this value is become on average 10%.

Keywords

References

  1. Abbas, O.H. and Numan, H.A. (2021), "A state of the art review on transverse web opening for reinforced concrete beams with and without strengthening method", J. Phys.: Conf. Ser., 1895(1), 012059. https://doi.org/10.1088/1742-6596/1895/1/012059.
  2. Abdel-Naby, A. (2006), "Development of ferrocement U-shaped beams infilled with core materials", M.S. Thesis, the American University in Cairo, Egypt.
  3. Al Amli, A., Al-Ansari, N. and Shejiri, S.J.D. (2018), "Repairing of RC T-section beams with opening by CFRP for cracks and ultimate torque", J. Civil Eng. Arch., 12, 83-90. https://doi.org/10.17265/1934-7359/2018.02.001.
  4. ANSYS User Manual Release 16.0. (2015), ANSYS Inc., Canonsburg, Pennsylvania.
  5. Antar, K., Amara, K., Benyoucef, S., Bouazza, M. and Ellali, M. (2019), "Hygrothermal effects on the behavior of reinforced-concrete beams strengthened by bonded composite laminate plates", Struct. Eng. Mech., 69(3), 327-334. https://doi.org/10.12989/sem.2019.69.3.327.
  6. ASTM C III6/C III6M (2015), Standard Specification for Fiber-Reinforced Concrete, ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA, USA.
  7. Chen, Z., Xu, R., Ling, Z., Liang, Y., Lu, S. and Qin, L. (2023), "Experimental and numerical analysis of shear performance of reinforced concrete beams with double openings", Arch. Civil Mech. Eng., 23(3), 195. https://doi.org/10.1007/s43452-023-00745-0.
  8. Chin, S.C., Tee, K.F., Tong, F.S., Doh, S.I. and Gimbun, J. (2020), "External strengthening of reinforced concrete beam with opening by bamboo fiber reinforced composites", Mater. Struct., 53, 1-12. https://doi.org/10.1617/s11527-020-01572-y.
  9. El-Ame, F., Mwero, J.N. and Kabubo, C. (2020), "Openings effect on the performance of reinforced concrete beams loaded in bending and shear", Eng., Technol. Appl. Sci. Res., 10(2), 5352-5360. https://doi.org/10.48084/etasr.3317.
  10. Fanning, P. (2001), "Nonlinear models of reinforced and post tensioned concrete beams", Lecture, Department of Civil Engineering University College Dublin Earls fort Terrace, Dublin, Ireland.
  11. Fayyadh, M.M. and Abed, M.J. (2022), "Utilizing CFRP and steel plates for repair of damaged RC beams with circular web openings", Struct. Eng. Mech., 84(1), 49-61. https://doi.org/10.12989/sem.2022.84.1.049.
  12. Halvaeyfar, M.R., Zeighami, E., Mirhosseini, S.M. and Joshaghani, A.H. (2023), "Experimental and numerical study of the behavior of fiber reinforced concrete beams with nano-graphene oxide and strengthening CFRP sheets", Struct. Eng. Mech., 87(4), 375-389. https://doi.org/10.12989/sem.2023.87.4.375.
  13. Hanifehzadeh, M. and Mousavi, M.M.R. (2019), "Predicting the structural performance of sandwich concrete panels subjected to blast load considering dynamic increase factor", J. Civil Eng., Sci. Technol., 10(1), 45-58. https://doi.org/10.33736/jcest.1067.2019.
  14. Hoque, M. (2006), "3D nonlinear mixed finite-element analysis of RC beams and plates with and without FRP reinforcement", M.Sc. Thesis, University of Manitoba, Winnipeg, Manitoba, Canada.
  15. Housing and Building National Research Center (2007), The Egyptian Code for Design and Construction of Concrete Structures, ECP 203-2007, Ministry of Housing, Utilities and Urban Communities, Giza, Egypt.
  16. IFS Commitee 10 (2001), Ferrocement Model Code: Building Code Recommendations for Ferrocement, IFS 10-01, International Ferrocement Society, Asian Institute of Technology, Bangkok, Thailand.
  17. Kachlakev, D. and Miller, T. (2001), "Finite element modeling of reinforced concrete structures strengthened with FRP laminates", Oregon State University.
  18. Kueh, A.B.H., Tan, C.Y., Yahya, M.Y. and Wahit, M.U. (2022), "Impact resistance efficiency of bio-inspired sandwich beam with different arched core materials", Steel Compos. Struct., 44(1), 105-117. https://doi.org/10.12989/scs.2022.44.1.105.
  19. Kueh, A.B.H., Tan, J.H., Hassan, S.A. and Wahit, M.U. (2023), "Repeated impact response of bio-inspired sandwich beam with arched and honeycomb bilayer core", Struct. Eng. Mech., 85(6), 755-764. https://doi.org/10.12989/sem.2023.85.6.755.
  20. Ortiz-Navas, F., Navarro-Gregori, J., Leiva, J. and Serna, P. (2020), "Comparison of macrosynthetic and steel FRC shear-critical beams with similar residual flexure tensile strengths", Struct. Eng. Mech., 76(4), 491-503. https://doi.org/10.12989/sem.2020.76.4.491.
  21. Parol, J., Ben-Nakhi, A., Al-Sanad, S., Al-Qazweeni, J., Al-Duaij, H.J. and Kamal, H. (2019), "Experimental and numerical investigation of reinforced concrete beams containing vertical openings", Struct. Eng. Mech., 72(3), 383-393. https://doi.org/10.12989/sem.2019.72.3.383.
  22. Razaghi, J., Hosseini, A. and Hatami, F. (2005), "Finite element method application in nonlinear analysis of reinforced concrete structures", Second National Congress of Civil Engineering.
  23. Safari, M., Mohammadimehr, M. and Ashrafi, H. (2023), "Forced vibration of a sandwich Timoshenko beam made of GPLRC and porous core", Struct. Eng. Mech., 88(1), 1-12. https://doi.org/10.12989/sem.2023.88.1.001.
  24. Safiaa, A.R., Behera, S., Jamatia, R., Kumar, R. and Mondal, S. (2023), "Experimental-numerical study on the FRP-strengthened reinforced concrete beams with a web opening", Adv. Concrete Constr., 15(5), 321-331. https://doi.org/10.12989/sem.2023.85.6.755.
  25. Saleh, M., Al-Hamaydeh, M. and Zakaria, M. (2023), "Finite element analysis of reinforced concrete deep beams with square web openings using damage plasticity model", Eng. Struct., 278, 115496. https://doi.org/10.1016/j.engstruct.2022.115496.
  26. Shaaban, I.G. (2002), "Expanded wire fabric permanent formwork for improving flexural behaviour of reinforced concrete beams", Composite Materials in Concrete Construction: Proceedings of the International Seminar held at the University of Dundee, Scotland, UK, September.
  27. Shaaban, I.G., Shaheen, Y.B., Elsayed, E.L., Kamal, O.A. and Adesina, P.A. (2018), "Flexural behaviour and theoretical prediction of lightweight ferrocement composite beams", Case Stud. Constr. Mater., 9, 1-17. https://doi.org/10.1016/j.cscm.2018.e00204.
  28. Shaaban, I.G., Shaheen, Y.B., Elsayed, E.L., Kamal, O.A. and Adesina, P.A. (2018), "Flexural characteristics of lightweight ferrocement beams with various types of core materials and mesh reinforcement", Constr. Build. Mater., 171, 802-816. https://doi.org/10.1016/j.conbuildmat.2018.03.167.
  29. Shaheen, Y.B.I., Soliman, N.M. and Kandil, D.E. (2013), "Influence of reinforced ferrocement concrete plates under impact load", Int. J. Curr. Eng. Technol., 3(4), 1528-1540.
  30. Singh, G. (2006), "Finite element analysis of reinforced concrete shear walls", M.Sc. Thesis, Deemed University, India.
  31. Slowik, M. and Smarzewski, P. (2014), "Numerical modeling of diagonal cracks in concrete beams", Arch. Civil Eng., 60(3), 307-322. https://doi.org/10.2478/ace-2014-0021.
  32. Smarzewski, P. (2018), "Hybrid fibers as shear reinforcement in high-performance concrete beams with and without openings", Appl. Sci., 8(11), 2070. https://doi.org/10.3390/app8112070.
  33. Smarzewski, P. (2019), "Analysis of failure mechanics in hybrid fiber-reinforced high-performance concrete deep beams with and without openings", Mater., 12(1), 101. https://doi.org/10.3390/ma12010101.
  34. Stolarski, A. and Zychowicz, J. (2021), "Experimental investigations of reinforced concrete beams with innovative truss-shaped reinforcement system", Mater., 14(7), 1652. https://doi.org/10.3390/ma14071652.
  35. Varum, H. (2003), "Seismic assessment, strengthening and repair of existing buildings", PhD Thesis, Civil Engineering Department, University of Aveiro, Portugal.
  36. William, K.J. and Warnke, E.D. (1975), "Constitutive model for the triaxial behavior of concrete", Proc. of the Int. Assoc. Bridge Structural Engineering, ISMES, Bergamo, 19, 174.
  37. Wolanski, A.J. (2004). "Flexural behavior of reinforced and prestressed concrete beams using finite element analysis", Milwaukee, Wisconsin.